4BT 3.9L Marine Remanufactured Long Block (105-130 HP)

Remanufactured Cummins 4BT 3.9L marine diesel long block engine. 105-130 HP. Built to OEM specifications. Ideal for small commercial fishing boats, workboats, and sailboat auxiliaries. 1-year unlimited warranty included.

Full Product Description:

Our Cummins 4BT 3.9L Marine Remanufactured Long Block Includes:

Cam/Main/Rod Bearings | Oil Pump | Timing Gears

Camshaft | Pistons | Valves

Connecting Rods | Piston Rings | Valve Guides

Gaskets | Push Rods | Valve Keepers

Lifters | Rocker Arms | Valve Springs

Engine Specifications:

•Displacement: 3.9L

•Horsepower: 105-130 HP

•Configuration: 4-Cylinder Inline, Turbocharged

•Application: Small commercial fishing, workboats, sailboat auxiliaries

This remanufactured Cummins 4BT 3.9L marine long block is the perfect solution for repowering small vessels. Known for its legendary reliability and compact size, the 4BT is the go-to choice for workboat operators and sailboat owners who demand dependable diesel power.

Every long block is completely remanufactured to OEM specifications using premium components. All wear surfaces are restored to factory tolerances.

We stand behind our unbeatable quality with a One Year Unlimited Mileage Warranty!

Call us today with any questions and to verify this engine will work for you: (631) 991-7700