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Cummins 4BT Engines and Longblocks

Cummins 4BT Engines For Sale

Big Bear Engine Company Warranty SealExperience the power of diesel! Our Cummins 4BT Engines are the best in the business. Whether you are looking to power small industrial equipment or are looking to upgrade to diesel through a 4BT Jeep Swap we will get you up and running. The Cummins 4BT Engine is a workhorse in its own right offering torque when you need it and the durability to run at full load for long periods of time.

We offer two types of new Cummins 4BT Engines: Longblocks and Complete Engines.

4BT Longblocks Engines:

Cummins 4BT Surplus EngineOur longblocks are perfect for someone who already has an older Cummins 4BT and is looking to simply replace the worn hard internal parts of the engine and then reuse ancillary parts. Note we also offer a Cummins 4.5 L ISB longblock. Our traditional long-block 4B (105 hp) engine includes:

• New Block
• New Cylinder Head
• New Camshaft and Lifters
• New Crankshaft
• New Connecting Rods
• New Rocker Assemblies
• New Gaskets, Liners, Rings, Seals, Bearings

4BT Complete Engines:

Our complete engines also known as (extended longblocks) come with most everything you need to drop into your applications. These brand new Cummins 4BT Engines are built with brand new ISO 9001 parts, to exact OEM tolerances and have less than a 1% parts failure rate. Our complete engines include:

• New Block
• New Cylinder Head
• New Camshaft and Lifters
• New Crankshaft
• New Connecting Rods
• New Rocker Assemblies
• New Gaskets, Liners, Rings, Seals, Wrist Pins, Bearings
• New Bosch Injectors
AERA Association Member• New Oil Pump and Water Pump
• New Oil Cooler
• New Oil Filters
• New Intake and Exhaust Manifolds
• New Housings (Front and Rear)
• New Brackets and Pullys
• New Fuel Injector Pump
• New Turbo

4BT Complete Engine Models:

• 4B 105HP
• 4B 130HP
• 4B 140HP

Cummins 4BT Engine Industrial Applications:

Cummins 4BT Engines are primarily used in industrial applications. The engine was primarily installed in step vans and “bread trucks” for hauling cargo around cities. 4BT engines are also very popular in skid steers, loaders, dozers, forklifts, manlifts, wood chippers, RVs, shuttle vans, pumps, generators, street sweepers and baggage carts. Some Cummins 4BT engines are also in use in small boats and bilge pumps but mainly use in over the road vehicles.

Cummins 4BT Engine Off-Roading Applications:

The off-roading community has taken quite a liking to the Cummins 4BT engine; known primarily as 4BT Jeep Swaps. The engine won’t win any races as the maximum horsepower is only 105 hp at 2,300 rpm however the engine is extremely popular when it comes to the torque ratio. The standard 4BT will produce 265 lb-ft of torque at 1,600 rpm however common upgrades can increase the torque ratio to well over 750 lb-ft of torque. That is a lot of torque at the wheels; perfect for traversing steep inclines or hugging the edge of a trail. There is a whole community over at 4BTSwaps.com that focuses on all the info you will ever need to swap a diesel engine into a off-road vehicle.

Cummins 4BT engines are also easy to maintain, simple in design and can get upwards of 40 mpg with performance upgrades. The 4BT is the most popular diesel engine swap for off-roading because it is simple to upgrade the turbo, camshaft, injectors and fuel pumps in addition to being the biggest diesel engine that will easily fit into a Jeep or 4Runner. A Cummins 6BT will simply be too large.

Cummins 4BT Specs

Cummins 4BT Spec

Engine Data

Configuration Inline 4 Cylinder
Displacement 3.9 L, 239 cubic inches
Bore x Stroke 4.02" x 4.72"
Cylinder Head Cast Iron
Engine Block Cast Iron
Firing Order 1-3-4-2
Compression Ratio 17.5 : 1
Injection Direct Injection, Mechanical Injection Pump
Aspiration Turbocharged, non-intercooled
Valve Train OHV, 2 valves per cylinder
Weight 745-782 lbs with oil
Oil Capacity 10 quarts
Governor Speed Varies with application
Horsepower 105 hp @ 2300 rpm
Torque 265 lb-ft @ 1600 rpm
Give us a call today at 844-340-4114 for immediate sales and support for the Cummins 4BT, Cummins 6BT or CAT 3306. If you have any questions check out our FAQ Page. We are always ready to help or just listen to your crazy off-roading adventures!

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4BT ENGINES GALLERY

140 HP 4BT Engine Unit Arrival 1
140 HP 4BT Engine Unit Arrival 2
140 HP 4BT Engine Unit Arrival 3
4BT 105 2
4BT 105 3
4BT 105 4
4BT 105 5
4BT Crate 2
4BT Crate 4
4BT Engines
4BT Extended Longblock (Bosch Injectors)
4BT Jeep Swap Engines
4BTAA Extended Long Block (Rotary)
Chad Crate 7
Cummins 4BT 105 HP BBEC
Cummins 4BT 130 HP BBEC
Cummins 4BT 140 HP BBEC
Cummins 4BT Black Engine
Cummins 4BT Dozer Application
Cummins 4BT Dozer Engine
Cummins 4BT Engine Big Bear 1
Cummins 4BT Engine Big Bear 2
Cummins 4BT Engine Big Bear 3
Cummins 4BT Engine Big Bear 4
Cummins 4BT Engine Big Bear 5
Cummins 4BT Engine Big Bear 6
Cummins 4BT Engines
Cummins 4BT Industrial Picture
Cummins 4BT Marine White
Cummins 4BT Pic Red
Cummins 4BT Skid Steer Engine
Cummins 4BT Step Van Engine
Cummins 4BT Wood Chipper
Cummins 4BTs Production

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