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Cummins 4BT
Parts and Accessories

The 4BT Engine is a very common motor to use on custom truck and SUV engine swaps. People often will swap it into Jeep Wranglers, Gran Cherokees, Chevy Blazers, Land Rovers and other SUVs.

It is the little brother to the 6BT found in Dodge Rams. It is a very strong motor that is capable of handing 500+ RWHP with supporting modifications. The motor is often removed from Bread Trucks/Commercial Vans and other smaller around the town hauling trucks.  It is also sought after because you can get extremely good fuel economy out of it, 40+ in some cases.

At Diesel Power Products we are currently working on a 4BT build up in a Mid 90s Toyota Land Cruiser owned by Cooper Rasmussen.



Cummins 4BT Specifications:

  • Engine Name:Cummins B3.9L/4BT
  • Applications:Chevrolet Step Vans, Commercial applications
  • Configuration:Inline 4-cylinder diesel
  • Displacement:3.9L, 239 cubic inches
  • Bore:4.02 inches
  • Stroke:4.72 inches 
  • Compression Ratio:17.5:1
  • Aspiration:Turbocharged, non-intercooled
  • Engine Weight:745 - 782 lbs
  • Oil Capacity:10 quarts
  • Horsepower:105 hp @ 2,300 RPM *
  • Torque:265 lb-ft @ 1,600 RPM *  




Harland Sharp Roller Rocker Arms Dodge Cummins
Harland Sharp Roller Rocker Arms Dodge 8V 4BT Cummins
DPP Price: $833.00 
SKU: Harland-BT4
PacBrake Remote Oil Filter Kit 94-02 5.9L Dodge Cummins HP10006
PacBrake Remote Oil Filter Kit Universal Cummins
DPP Price: $199.00 
SKU: