Big Bear Engine Company
Parker, CO 80134-4141
Silver Level Dealer
Surplus Record Dealer Since 2023
Contact
John Clifford
About
WE SELL HIGH PERFORMANCE DIESEL ENGINES
Your ultimate source for all your compact heavy-duty diesel engine requirements is right here. At Big Bear Engine Company, we specialize in providing replacement parts and assemblies for Cummins 4BT, Cummins 6BT, and Caterpillar 3306 engines. Our high-performance diesel engines are meticulously crafted using entirely new components, and they are designed to meet the precise OEM serial numbers for your specific application. Notably, Cummins 4BT Engines are exceptionally well-suited for 4BT Jeep Swaps and various industrial applications.
• Comprehensive Selection of Replacement Assemblies for Cummins 4BT, 6BT, 6CT, and CAT 3306
• Various Long Block and Extended Long Block Component Build Choices
• Also Offering Used and Remanufactured Engines • Worldwide Shipping for Swift Return to Work
• Enjoy a 1-Year Unlimited Mileage Warranty
• Save an Average of 57% Compared to Dealership Prices
• 4BT Jeep Swap Compatible
• Industrial-Grade for Skid Steers, Dozers, Loaders, Wood Chippers, Forklifts
Products & Services
- Engines, Diesel & Marine
Associations & Affiliations
92 listings in 2 categories
60 HP Isuzu #4JB1-C, extended long block plus engine and cooling package
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Isuzu
Model: 4JB1-C
Year: 2022
We offer 4 different versions of the Isuzu 4JB1 Power Unit Packages. Note these smaller packages do not come with a base fuel tank or skid mounted. These are an engine, muffler and radiator package. We do offer a more complete (also listed 4JB1T-P) with those components already installed if you need them.These smaller ...more
76 HP, 105 HP, 125 HP, 130 HP, 140 HP Cummins #4B, long block engine (A-Pump 25 Housing Configuration)
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 4B
Year: 2024
Brand New Surplus Component Build Cummins 4B Long Block Diesel Engine, Parts List:, • New Cylinder Block, • New Cylinder Head, • New Crankshaft, • New Camshaft, • New Followers/Lifters, • New Pistons, • New Liners, • New Rings, • New Connecting Rods, • New Intermediate ...more
76 HP Cummins #4B, remanufactured extended long block engine (Naturally Aspirated - Inline A Pump Setup)
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 4B
Year: 2024
Remanufactured Cummins 4B (NA) in Stock – 76 HP Complete Diesel Engine (Inline A Pump Setup), Our long block and extended long block assemblies are considered 'component builds'. A component build is an engine assembly built back to popular configurations using roughly 90% OEM New Parts, 10% Aftermarket when ...more
76 HP Cummins #4B, remanufactured extended long block engine (Naturally Aspirated - Rotary VE Pump Setup)
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 4B
Year: 2023
Remanufactured Cummins 4B (NA) in Stock – 76 HP Complete Diesel Engine (Rotary VE Setup), Our long block and extended long block assemblies are considered 'component builds'. A component build is an engine assembly built back to popular configurations using roughly 90% OEM New Parts, 10% Aftermarket when ...more
76 HP, 105 HP, 125 HP, 130 HP, 140 HP Cummins #4B, long block engine (Inline P-Pump or A-Pump Configuration)
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 4B
Year: 2023
Brand New Surplus Component Build Cummins 4B Long Block Diesel Engine, Parts List:, • New Cylinder Block, • New Cylinder Head, • New Crankshaft, • New Camshaft, • New Followers/Lifters, • New Pistons, • New Liners, • New Rings, • New Connecting Rods, • New Intermediate ...more
76 HP, 105 HP, 125 HP, 130 HP, 140 HP Cummins #4B, long block engine (VE Rotary Configuration)
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 4B
Year: 2023
Brand New Surplus Component Build Cummins 4B Long Block Diesel Engine, Parts List:, • New Cylinder Block, • New Cylinder Head, • New Crankshaft, • New Camshaft, • New Followers/Lifters, • New Pistons, • New Liners, • New Rings, • New Connecting Rods, • New Intermediate ...more
83 HP Isuzu #4JB1-G, extended long block plus engine and cooling package
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Isuzu
Model: 4JB1-G
Year: 2022
We offer 4 different versions of the Isuzu 4JB1 Power Unit Packages. Note these smaller packages do not come with a base fuel tank or skid mounted. These are an engine, muffler and radiator package. We do offer a more complete (also listed 4JB1T-P) with those components already installed if you need them.These smaller ...more
105 HP Cummins #4BT, remanufactured extended long block engine
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 4BT
Year: 2024
Remanufactured Cummins 4BT in Stock – 105 HP Complete Diesel Engine, Our long block and extended long block assemblies are considered 'component builds'. A component build is an engine assembly built back to popular configurations using roughly 90% OEM New Parts, 10% Aftermarket when available. Our 4BT 105 HP ...more
130 HP Cummins #4BT, remanufactured extended long block engine
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 4BT
Year: 2024
Remanufactured Cummins 4BTA – 130HP Extended Long Block Diesel Engine, Our long block and extended long block assemblies are considered 'component builds'. A component build is an engine assembly built back to popular configurations using roughly 90% OEM Parts, 10% Aftermarket when available. Our 4BTA (3.9 L) ...more
140 HP Cummins #4BT, remanufactured extended long block engine
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 4BT
Year: 2024
Remanufactured Cummins 4BTAA – 140HP Extended Long Block Diesel Engine, Our long block and extended long block assemblies are considered 'component builds'. A component build is an engine assembly built back to popular configurations using roughly 90% OEM New Parts, 10% Aftermarket when available. Our 4BTAA (3.9 ...more
155 HP, 160 HP, 180 HP, 210 HP, 230 HP Cummins #6B, long block engine (Rotary VE Pump Setup)
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 6B
Year: 2023
Cummins 6B Long Block Diesel Engine, Our 12 Valve Cummins 6B (5.9 L) long blocks are a great replacement option for worn or non running existing units in the field. We offer both storm and non-storm blocks based on your specific configuration. Our long blocks are considered true component builds assembled with new ...more
155 HP, 160 HP, 180 HP, 210 HP, 230 HP Cummins #6B, long block engine (Inline P-Pump or A Style Setup, STORM BLOCK 35 Housing)
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 6B
Year: 2023
Cummins 6B Long Block Diesel Engine - STORM BLOCK 35° Housing, Our 12 Valve Cummins 6B (5.9 L) long blocks are a great replacement option for worn or non running existing units in the field. We offer both storm and non-storm blocks based on your specific configuration. Our long blocks are considered true component ...more
155 HP, 160 HP, 180 HP, 210 HP, 230 HP Cummins #6B, long block engine (Inline P-Pump or A Style Setup, STORM BLOCK)
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 6B
Year: 2023
Cummins 6B Long Block Diesel Engine - STORM BLOCK, Our 12 Valve Cummins 6B (5.9 L) long blocks are a great replacement option for worn or non running existing units in the field. We offer both storm and non-storm blocks based on your specific configuration. Our long blocks are considered true component builds ...more
155 HP, 160 HP, 180 HP, 210 HP, 230 HP Cummins #6B, long block engine (Inline P-Pump or A Style Setup, NON-STORM BLOCK)
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 6B
Year: 2023
Cummins 6B Long Block Diesel Engine - NON-STORM BLOCK, Our 12 Valve Cummins 6B (5.9 L) long blocks are a great replacement option for worn or non running existing units in the field. We offer both storm and non-storm blocks based on your specific configuration. Our long blocks are considered true component builds ...more
155 HP, 160 HP, 180 HP, 210 HP, 230 HP Cummins #6B, long block engine (Inline P-Pump or A Style Setup)
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 6B
Year: 2023
Cummins 6B Long Block Diesel Engine, Our 12 Valve Cummins 6B (5.9 L) long blocks are a great replacement option for worn or non running existing units in the field. We offer both storm and non-storm blocks based on your specific configuration. Our long blocks are considered true component builds assembled with new ...more
155 HP, 160 HP, 180 HP, 210 HP, 230 HP Cummins #6B, long block engine (Inline P-Pump or A Style Setup, STORM BLOCK 25 Housing)
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 6B
Year: 2023
Cummins 6B Long Block Diesel Engine - STORM BLOCK 25° Housing, Our 12 Valve Cummins 6B (5.9 L) long blocks are a great replacement option for worn or non running existing units in the field. We offer both storm and non-storm blocks based on your specific configuration. Our long blocks are considered true component ...more
170 HP Cummins #QSB/ISB 4.5 Long Block Diesel Engine (Rear Gear Train - HPCR Setup)
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: QSB/ISB 4.5 L
Year: 2022
Brand New Cummins QSB 4.5 L Long Block Engine - This engine is a 2022 Surplus Component Unit built with original castings and all new parts. Component Builds consist of roughly 90% OEM Parts, 10% Aftermarket when available. This particular setup is for a HPCR (High Pressure Common Rail) VP 30 Rear Gear Train fuel pump ...more
180 HP Cummins #4BTTAA, (Twin Turbo Special Build) remanufactured extended long block engine
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 4BTTAA
Year: 2023
Remanufactured Cummins 4BTTAA – 180HP Extended Long Block Diesel Engine, Our long block and extended long block assemblies are considered 'component builds'. A component build is an engine assembly built back to popular configurations using roughly 90% OEM New Parts, 10% Aftermarket when available. Our 4BTTAA ...more
180 HP Cummins #6BTA, remanufactured (5.9 L) extended long block engine
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 6BTA
Year: 2023
Remaufactured Cummins 180 HP 6BTA (5.9 L) Engine, Our long block and extended long block assemblies are considered 'component builds'. A component build is an engine assembly built back to popular configurations using roughly 90% OEM Parts, 10% Aftermarket when available. Our 6BT (5.9 L) 12 Valve units make a great ...more
180 HP Cummins #QSB/ISB 4.5 Long Block Diesel Engine (Front Gear Train - VP14 Setup)
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: QSB/ISB 4.5 L
Year: 2024
Brand New Cummins QSB 4.5 L Long Block Engine - This engine is a 2022 Surplus Component Unit built with original castings and all new parts. Component Builds consist of roughly 90% OEM Parts, 10% Aftermarket when available. This particular setup is for a VP14 Front Gear Train fuel pump configuration., This engine is ...more
180 HP Cummins #QSB.ISB 4.5 Long Block Diesel Engine (Front Gear Train - VE/Delphi Setup)
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: QSB/ISB 4.5 L
Year: 2024
Brand New Cummins QSB 4.5 L Long Block Engine - This engine is a 2022 Surplus Component Unit built with original castings and all new parts. Component Builds consist of roughly 90% OEM Parts, 10% Aftermarket when available. This particular setup is for a VE or Delphi Front Gear Train fuel pump configuration., This ...more
200 HP Caterpillar #3306, remanufactured standard long block engine
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Caterpillar
Model: 3306
Year: 2023
CAT 3306 Remanufactured Long Block Engine, We offer a variety of both, over the road truck and industrial replacement engines for the Caterpillar 3306. Our remanufactured CAT 3306 engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block ...more
200 HP Cummins Marine #4BTA (3.9 L) extended long block engine, remanufactured
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 4BTA
Year: 2024
4BTA 200 HP Marine Extended Long Block, Whether you are looking to replace an existing (3.9 L) 4BT marine engine or interested in doing a complete repower we can help. The 4BT Marine engines are perfect for commercial fishing vessels, small trawlers, supply boats, patrol boats, skiffs, tugs, pontoons, and pleasure ...more
210 HP Cummins #6BTAA (5.9 L) extended long block engine, remanufactured
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 6BTAA
Year: 2024
Remaufactured Cummins 210 HP 6BTAA (5.9 L) Engine, Our long block and extended long block assemblies are considered 'component builds'. A component build is an engine assembly built back to popular configurations using roughly 90% OEM Parts, 10% Aftermarket when available. Our 6BT (5.9 L) 12 Valve units make a great ...more
215 HP, 240 HP, 260 HP, 300 HP Cummins #6C, long block engine (2 Thermostat Application)
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 6C
Year: 2023
Cummins 6C Long Block Diesel Engine - 2 Thermostats, Our Cummins 6C (8.3 L) long blocks are a great replacement option for worn or non running existing units in the field. We offer both storm and non-storm blocks based on your specific configuration. Our long blocks are considered true component builds assembled with ...more
215 HP, 240 HP, 260 HP, 300 HP Cummins #6C, long block engine (1 Thermostat Application)
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 6C
Year: 2024
Cummins 6C Long Block Diesel Engine - 1 Thermostat, Our Cummins 6C (8.3 L) long blocks are a great replacement option for worn or non running existing units in the field. We offer both storm and non-storm blocks based on your specific configuration. Our long blocks are considered true component builds assembled with ...more
215 HP Cummins #6CT, 8.3 L extended long block engine
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 6CT
Year: 2024
Cummins 6CTA (8.3 L) – 215HP Complete Replacement Diesel Engine, Our 6CT 8.3 L engines are considered reman component builds with roughly 90% OEM Surplus and 10% Aftermarket Parts. We offer these units up to 300 HP for both automotive and industrial applications alike. 6CT 8.3 L Power Units also available. Give ...more
220 HP Caterpillar #3306DI, remanufactured extended long block engine
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Caterpillar
Model: 3306
Year: 2023
CAT 3306B DI – 220 HP Industrial Engine, Our 3306B DI (Direct Injection) engine is considered a component build engine that could be used in 20+ different Industrial Caterpillar dozers, scrapers, tractors, excavators, wheel loaders, compactors and rollers. The engine is built to a 9Y1719 Arrangement., It is ...more
230 HP Cummins #6BTAA (5.9 L) extended long block engine, remanufactured
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 6BTAA
Year: 2024
Remaufactured Cummins 230 HP 6BTAA (5.9 L) Engine, Our long block and extended long block assemblies are considered 'component builds'. A component build is an engine assembly built back to popular configurations using roughly 90% OEM Parts, 10% Aftermarket when available. Our 6BT (5.9 L) 12 Valve units make a great ...more
240 HP Cummins #6CT, 8.3 L extended long block engine
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 6CT
Year: 2024
Cummins 6CTA (8.3 L) – 240HP Complete Replacement Diesel Engine, Our 6CT 8.3 L engines are considered reman component builds with roughly 90% OEM Surplus and 10% Aftermarket Parts. We offer these units up to 300 HP for both automotive and industrial applications alike. 6CT 8.3 L Power Units also available. Give ...more
260 HP Cummins #6CT, 8.3 L extended long block engine
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 6CT
Year: 2024
Cummins 6CTA (8.3 L) – 260HP Complete Replacement Diesel Engine, Our 6CT 8.3 L engines are considered reman component builds with roughly 90% OEM Surplus and 10% Aftermarket Parts. We offer these units up to 300 HP for both automotive and industrial applications alike. 6CT 8.3 L Power Units also available. Give ...more
270 HP Cummins #ISB, 5.9 L long block engine for Dodge Ram 2003-2007
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 6B
Year: 2024
Cummins ISB 5.9 L (24 Valve) Long Block Diesel Engine - 270 HP Front Gear Train, Our ISB 5.9 L 24 Valve Replacement Long Block Engines are true component built unit. These long blocks are roughly assembled with 90% OEM and 10% Aftermarket parts built back to original. A component built reman engine vs. a true reman ...more
270 HP Cummins #ISL, (8.9 L) long block - CPL 4525
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: ISL
Year: 2022
We offer a variety of both, over the road truck and industrial replacement (QSL) engines for the Cummins ISL Units. The engine was popular in the mid 2000s and installed in transit buses, motorcoaches, RVs, mid duty over the road trucks, firetrucks and emergency vehicles as well as trash and refuse trucks., Our ...more
280 HP Cummins Marine #6BTA, (5.9 L) extended long block engine, remanufactured
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 6BTA
Year: 2024
6BTA 280 HP Marine Engine (Extended Long Block), Whether you are looking to replace an existing (5.9 L) 6BT marine engine or interested in doing a complete repower we can help. The 6BT Marine engines are perfect for commercial fishing vessels, small trawlers, supply boats, patrol boats, skiffs, tugs, pontoons, and ...more
300 HP Caterpillar #C11, remanufactured standard long block engine
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Caterpillar
Model: C11
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Caterpillar C11. Our remanufactured CAT C11 engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft, crankshaft, engine block ...more
300 HP Cummins #6CT, 8.3 L extended long block engine
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 6CT
Year: 2023
Cummins 6CTA (8.3 L) – 300HP Complete Replacement Diesel Engine, Our 6CT 8.3 L engines are considered reman component builds with roughly 90% OEM Surplus and 10% Aftermarket Parts. We offer these units up to 300 HP for both automotive and industrial applications alike. 6CT 8.3 L Power Units also available. Give ...more
300 HP Cummins #L10, remanufactured standard long block engine
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: L10
Year: 2023
We offer a variety of both, over the road truck, transit busses and industrial replacement engines for the Cummins L10. Our remanufactured Cummins L10 engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft ...more
320 HP Cummins #ISL-G, (8.9 L) long block - Natural Gas assembly
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: ISL
Year: 2022
We offer a variety of both, over the road truck and industrial replacement (QSL) engines for the Cummins ISL Units. The engine was popular in the mid 2000s and installed in transit buses, motorcoaches, RVs, mid duty over the road trucks, firetrucks and emergency vehicles as well as trash and refuse trucks., Our ...more
325 HP Cummins #ISB, 5.9 L long block engine for Dodge Ram 2003-2007
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 6B
Year: 2024
Cummins ISB 5.9 L (24 Valve) Long Block Diesel Engine - 325 HP Front Gear Train, Our ISB 5.9 L 24 Valve Replacement Long Block Engines are true component built unit. These long blocks are roughly assembled with 90% OEM and 10% Aftermarket parts built back to original. A component built reman engine vs. a true reman ...more
330 HP Cummins #ISC/QSC, (8.3 L) long block - CM2250
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: ISC
Year: 2022
Surplus Component Build 330 HP ISC/QSC 8.3 L Long Block Block:, Our 330 HP 8.3 L component build (combination of new parts and reman components) long blocks fits a variety of CPLs and ESN. The long blocks are all brand new castings built to a 3/4 engine configuration. The 8.3 L long blocks may fit both ISC (on-road) ...more
330 HP Cummins #ISC/QSC, (8.3 L) long block - notched EGR
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: ISC
Year: 2022
Surplus Component Build 330 HP ISC/QSC 8.3 L Long Block Block:, Our 330 HP 8.3 L component build (combination of new parts and reman components) long blocks fits a variety of CPLs and ESN. The long blocks are all brand new castings built to a 3/4 engine configuration. The 8.3 L long blocks may fit both ISC (on-road) ...more
330 HP Cummins #ISC/QSC, (8.3 L) long block - CM2150
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: ISC
Year: 2022
Surplus Component Build 330 HP ISC/QSC 8.3 L Long Block Block:, Our 330 HP 8.3 L component build (combination of new parts and reman components) long blocks fits a variety of CPLs and ESN. The long blocks are all brand new castings built to a 3/4 engine configuration. The 8.3 L long blocks may fit both ISC (on-road) ...more
330 HP Cummins #ISC/QSC, (8.3 L) long block - CM3735
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: ISC
Year: 2022
Surplus Component Build 330 HP ISC/QSC 8.3 L Long Block Block:, Our 330 HP 8.3 L component build (combination of new parts and reman components) long blocks fits a variety of CPLs and ESN. The long blocks are all brand new castings built to a 3/4 engine configuration. The 8.3 L long blocks may fit both ISC (on-road) ...more
330 HP Cummins #ISC/QSC, (8.3 L) long block - CM850
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: ISC
Year: 2022
Surplus Component Build 330 HP ISC/QSC 8.3 L Long Block Block:, Our 330 HP 8.3 L component build (combination of new parts and reman components) long blocks fits a variety of CPLs and ESN. The long blocks are all brand new castings built to a 3/4 engine configuration. The 8.3 L long blocks may fit both ISC (on-road) ...more
330 HP Cummins #ISL, (8.9 L) long block - CPL 3664
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: ISL
Year: 2022
We offer a variety of both, over the road truck and industrial replacement (QSL) engines for the Cummins ISL Units. The engine was popular in the mid 2000s and installed in transit buses, motorcoaches, RVs, mid duty over the road trucks, firetrucks and emergency vehicles as well as trash and refuse trucks., Our ...more
335 HP Cummins #ISM, remanufactured standard long block engine - CPL 8557
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: ISM
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Cummins ISM. Our remanufactured Cummins ISM engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft, crankshaft, engine block ...more
350 HP Cummins #ISM, remanufactured standard long block engine - CPL 2729
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: ISM
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Cummins ISM. Our remanufactured Cummins ISM engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft, crankshaft, engine block ...more
350 HP Cummins #N14, mechanical remanufactured long block engine - CPL 1532
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: N14
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Cummins N14 CELECT. Our remanufactured Cummins N14 engines (N14 Mechanical, N14 CELECT, N14 CELECT+) come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block ...more
375 HP Mack #E7-ETECH, remanufactured standard long block engine
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Mack
Model: E7 ETECH
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Mack E7. Our remanufactured Mack E7 engines (Mechanical, ASET, ETech) come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft ...more
380 HP Detroit #Series-60, 12.7 L remanufactured long block
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Detroit
Model: SERIES 60
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Detroit Diesel 60 Series. Our remanufactured Detroit Diesel 60 Series engines (11.1 L, 12.7 L and 14.0 L) come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare ...more
400 HP Cummins #855 Big Cam III, remanufactured extended long block
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: NTA-855
Year: 2022
Remanufactured Cummins 855 - Big Cam For Sale, This engine has gone through a complete overhaul and has been remanufactured with roughly 90% new Cummins parts 10% aftermarket., Engine comes complete and includes starter, alternator, flywheel, flywheel housing which ship separately., Build Sheet, Part Numbers and Run ...more
400 HP Cummins #855 Big Cam III, remanufactured standard long block
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: NTA-855
Year: 2022
Remanufactured Cummins 855 - Standard Long Block, NOTE: We have limited availability on the extended long block but do carry standard 855 long blocks in stock. (Big Cam III, Big Cam IV), NTA 855 Standard Long Block Engine Includes:, • Engine Block (3081283), • Cylinder Head (4915442), • ...more
400 HP Cummins #855 Big Cam III, remanufactured extended long block (Industrial Governor)
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: NTA-855
Year: 2022
Remanufactured Cummins 855 - Big Cam For Sale, This engine has gone through a complete overhaul and has been remanufactured with roughly 90% new Cummins parts 10% aftermarket., Engine comes complete and includes starter, alternator, flywheel, flywheel housing which ship separately., Build Sheet, Part Numbers and Run ...more
425 HP Caterpillar #3406B, remanufactured standard long block engine - mechanical
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Caterpillar
Model: 3406
Year: 2023
CAT 3406B ARR -Mechanical Remanufactured Long Block Engine, We offer a variety of both, over the road truck and industrial replacement engines for the Caterpillar 3406. Our remanufactured CAT 3406 engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to ...more
430 HP Caterpillar #C12, remanufactured standard long block engine
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Caterpillar
Model: C12
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Caterpillar C12. Our remanufactured CAT C12 engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft, crankshaft, engine block ...more
430 HP Caterpillar #C13-ACERT, remanufactured standard long block engine - ARR - LEE
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Caterpillar
Model: C13
Year: 2023
CAT C13 ACERT ARR- LEE Remanufactured Long Block Engine, We offer a variety of both, over the road truck and industrial replacement engines for the Caterpillar C13. Our remanufactured CAT C13 engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the ...more
430 HP Caterpillar #C13-ACERT, remanufactured standard long block engine - ARR - KCB
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Caterpillar
Model: C13
Year: 2023
CAT C13 ACERT ARR- KCB Remanufactured Long Block Engine, We offer a variety of both, over the road truck and industrial replacement engines for the Caterpillar C13. Our remanufactured CAT C13 engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the ...more
435 HP Caterpillar #3406E, remanufactured standard long block engine - ARR 1LW
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Caterpillar
Model: 3406
Year: 2023
CAT 3406E ARR -1LW Remanufactured Long Block Engine, We offer a variety of both, over the road truck and industrial replacement engines for the Caterpillar 3406. Our remanufactured CAT 3406 engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare ...more
435 HP Caterpillar #C15-ACERT, remanufactured standard long block engine - 6NZ
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Caterpillar
Model: C15
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Caterpillar C15. Our remanufactured CAT C15 engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft, crankshaft, engine block ...more
445 HP Detroit #Series-60, 14.0 L remanufactured long block - DDEC IV
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Detroit
Model: SERIES 60
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Detroit Diesel 60 Series. Our remanufactured Detroit Diesel 60 Series engines (11.1 L, 12.7 L and 14.0 L) come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare ...more
450 HP Cummins #ISX, remanufactured long block - CPL 2719
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: ISX
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Cummins ISX. Our remanufactured Cummins ISX engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft, crankshaft, engine block ...more
450 HP Cummins #ISX, remanufactured long block - CPL 2732
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: ISX
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Cummins ISX. Our remanufactured Cummins ISX engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft, crankshaft, engine block ...more
450 HP Cummins #ISX, remanufactured long block - CPL 2729
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: ISX
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Cummins ISX. Our remanufactured Cummins ISX engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft, crankshaft, engine block ...more
450 HP Cummins #ISX15, remanufactured long block - CPL 3937
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: ISX15
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Cummins ISX. Our remanufactured Cummins ISX engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft, crankshaft, engine block ...more
450 HP Cummins #ISX15, remanufactured long block - CPL 3719
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: ISX15
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Cummins ISX. Our remanufactured Cummins ISX engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft, crankshaft, engine block ...more
450 HP Cummins #N14-CELECT, remanufactured long block engine - CPL 2025
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: N14 CELECT
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Cummins N14 CELECT. Our remanufactured Cummins N14 engines (N14 Mechanical, N14 CELECT, N14 CELECT+) come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block ...more
450 HP Cummins #855 Big Cam IV, remanufactured extended long block
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: NTA-855
Year: 2022
Remanufactured Cummins 855 - Big Cam For Sale, This engine has gone through a complete overhaul and has been remanufactured with roughly 90% new Cummins parts 10% aftermarket., Engine comes complete and includes starter, alternator, flywheel, flywheel housing which ship separately., Build Sheet, Part Numbers and Run ...more
450 HP Cummins #855 Big Cam IV, remanufactured standard long block
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: NTA-855
Year: 2022
Remanufactured Cummins 855 - Standard Long Block, NOTE: We have limited availability on the extended long block but do carry standard 855 long blocks in stock. (Big Cam III, Big Cam IV), NTA 855 Standard Long Block Engine Includes:, • Engine Block (3081283), • Cylinder Head (4915442), • Camshaft and ...more
455 HP Detroit #DD15, remanufactured long block
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Detroit
Model: DD15
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Detroit Diesel DD15, which is an excellent replacement for the discontinued Detroit 60 Series 14L. Our remanufactured Detroit Diesel DD15 engines come as a 3/4 long block and are not running trim condition. Our remanufacturing ...more
460 HP Detroit #Series-60, 14.0 L remanufactured long block - DDEC IV
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Detroit
Model: SERIES 60
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Detroit Diesel 60 Series. Our remanufactured Detroit Diesel 60 Series engines (11.1 L, 12.7 L and 14.0 L) come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare ...more
460 HP Mack #E7-ASET, remanufactured standard long block engine
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Mack
Model: E7 ASET
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Mack E7. Our remanufactured Mack E7 engines (Mechanical, ASET, ETech) come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft ...more
470 HP Detroit #Series-60, 12.7 L remanufactured long block
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Detroit
Model: SERIES 60
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Detroit Diesel 60 Series. Our remanufactured Detroit Diesel 60 Series engines (11.1 L, 12.7 L and 14.0 L) come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare ...more
475 HP Caterpillar #C15 ACERT, remanufactured standard long block engine - JRE Industrial
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Caterpillar
Model: C15
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Caterpillar C15. Our remanufactured CAT C15 engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft, crankshaft, engine block ...more
475 HP Caterpillar #C15 ACERT, remanufactured standard long block engine - MXS
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Caterpillar
Model: C15
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Caterpillar C15. Our remanufactured CAT C15 engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft, crankshaft, engine block ...more
482 HP Caterpillar #3406E, remanufactured standard long block engine
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Caterpillar
Model: 3406
Year: 2023
CAT 3406E Remanufactured Long Block Engine, We offer a variety of both, over the road truck and industrial replacement engines for the Caterpillar 3406. Our remanufactured CAT 3406 engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block ...more
490 HP Detroit #DD15, remanufactured long block
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Detroit
Model: DD15
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Detroit Diesel DD15, which is an excellent replacement for the discontinued Detroit 60 Series 14L. Our remanufactured Detroit Diesel DD15 engines come as a 3/4 long block and are not running trim condition. Our remanufacturing ...more
500 HP Cummins #ISX, remanufactured long block - CPL 2733
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: ISX
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Cummins ISX. Our remanufactured Cummins ISX engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft, crankshaft, engine block ...more
500 HP Cummins #QSX, remanufactured long block - CPL 2825
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: QSX
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Cummins ISX. Our remanufactured Cummins ISX engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft, crankshaft, engine block ...more
515 HP Detroit #Series-60, 14.0 L remanufactured long block - DDEC V
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Detroit
Model: SERIES 60
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Detroit Diesel 60 Series. Our remanufactured Detroit Diesel 60 Series engines (11.1 L, 12.7 L and 14.0 L) come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare ...more
520 HP Detroit #DD15, remanufactured long block
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Detroit
Model: DD15
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Detroit Diesel DD15, which is an excellent replacement for the discontinued Detroit 60 Series 14L. Our remanufactured Detroit Diesel DD15 engines come as a 3/4 long block and are not running trim condition. Our remanufacturing ...more
525 HP Cummins #ISX, remanufactured long block - CPL 3320
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: ISX
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Cummins ISX. Our remanufactured Cummins ISX engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft, crankshaft, engine block ...more
525 HP Cummins #N14-CELECT-PLUS, remanufactured long block engine - CPL 2592
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: N14 CELECT
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Cummins N14 CELECT. Our remanufactured Cummins N14 engines (N14 Mechanical, N14 CELECT, N14 CELECT+) come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block ...more
550 HP Caterpillar #3406E, remanufactured standard long block engine - ARR 2WS
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Caterpillar
Model: 3406
Year: 2023
CAT 3406E ARR -2WS Remanufactured Long Block Engine, We offer a variety of both, over the road truck and industrial replacement engines for the Caterpillar 3406. Our remanufactured CAT 3406 engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare ...more
550 HP Caterpillar #C15 ACERT, remanufactured standard long block engine - BXS
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Caterpillar
Model: C15
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Caterpillar C15. Our remanufactured CAT C15 engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft, crankshaft, engine block ...more
550 HP Detroit #DD15, remanufactured long block
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Detroit
Model: DD15
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Detroit Diesel DD15, which is an excellent replacement for the discontinued Detroit 60 Series 14L. Our remanufactured Detroit Diesel DD15 engines come as a 3/4 long block and are not running trim condition. Our remanufacturing ...more
560 HP Detroit #DD15, remanufactured long block
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Detroit
Model: DD15
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Detroit Diesel DD15, which is an excellent replacement for the discontinued Detroit 60 Series 14L. Our remanufactured Detroit Diesel DD15 engines come as a 3/4 long block and are not running trim condition. Our remanufacturing ...more
565 HP Cummins #ISX, remanufactured long block - CPL 8518
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: ISX
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Cummins ISX. Our remanufactured Cummins ISX engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft, crankshaft, engine block ...more
625 HP Caterpillar #C15 ACERT, remanufactured standard long block engine - NXS
Category: Diesel Engines
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Caterpillar
Model: C15
Year: 2023
We offer a variety of both, over the road truck and industrial replacement engines for the Caterpillar C15. Our remanufactured CAT C15 engines come as a 3/4 long block and are not running trim condition. Our remanufacturing process strips the core down to the bare block whereas the camshaft, crankshaft, engine block ...more
83 HP Isuzu #4JB1T-P, power unit
Category: Industrial Power Units
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Isuzu
Model: 4JB1-P
Year: 2022
This Isuzu power unit is more complete than our 4JB1T-P Separate Radiator and Engine Package (also listed). The surplus power unit package come skid mounted with the radiator attached.These Isuzu units are perfect for a remote job site, irrigation pump or drill rig application. Give us a call and we can spec out your ...more
105 HP Cummins #4BT, Remanufactured Open Power Unit
Category: Industrial Power Units
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 4BT
Year: 2023
Our long block and extended long block assemblies are considered 'component builds'. A component build is an engine assembly built back to popular configurations using roughly 90% OEM New Parts, 10% Aftermarket when available. Our open power unit assemblies are great for irrigation, drill rigs or small hydraulic ...more
105 HP Cummins #4BT, remanufactured Open Power Unit - LH
Category: Industrial Power Units
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 4BT
Year: 2023
Our long block and extended long block assemblies are considered 'component builds'. A component build is an engine assembly built back to popular configurations using roughly 90% OEM New Parts, 10% Aftermarket when available. Our enclosed power unit assemblies are great for irrigation, drill rigs or small hydraulic ...more
260 HP Cummins #6CT, 8.3 L open power unit
Category: Industrial Power Units
Seller: Big Bear Engine Company
Location: Parker, CO
Mfr: Cummins
Model: 6CT
Year: 2024
Cummins 6CTA (8.3 L) – 260 HP Open Power Unit, Our 6CT 8.3 L engines are considered reman component builds with roughly 90% OEM Surplus and 10% Aftermarket Parts. We offer these units up to 300 HP for both automotive and industrial applications alike. This open power unit is rated at 260 HP and is perfect for ...more
