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Cummins 6BTA (5.9 L) 280 HP Marine Diesel Engine Package

Cummins 6BTA (5.9 L) 280 HP Marine Diesel Engine Package


Whether you are looking to replace an existing 4BT/6BT marine engine or interested in doing a complete repower we can help. The 6BT (5.9 L) 280 HP Marine engines are perfect for commercial fishing vessels, small trawlers, supply boats, patrol boats, skiffs, tugs, pontoons, and pleasure boats.

Mechanical Cummins 4BT and 6BT engines have been popular for repower projects due to their lighter weight, available power, and significantly lower cost over Yanmar or Volvo Penta engines. Common repower projects include the old Detroit Two-Stroke 4-71s and 6-71s, Perkins 4.154, 4.326 and 6.354, Ford Lehman, Mercruiser, Sterling and Gray Marine.

Our Reman 6BTA (5.9 L) marine engines essentially come as complete engine (extended long blocks) and include wet exhaust manifolds, water cooled turbocharger, marine rated fuel pump, fuel lines, injectors, marine rated pistons, heat exchanger, sea water pump and oil pan. Our Cummins 4BT/6BT Marine engines are designed to be connected to a gearbox with a fixed-pitch propeller; additionally engines can be connected to a ControlledPitch Propeller System (CPP). All marine engines come as a standard “Left Hand” Counter Clockwise Rotation (CCW). Directional rotation can be identified when inspecting the flywheel rotation. Engines are all run tested and ready to ship.

Our marine long block and extended long block assemblies are considered ‘component builds’. A new component build is an engine assembly built back to popular configurations using roughly 90% OEM parts, 10% Aftermarket when available.

New Remanufactured Component Builds do include limited rebuilt and/or remanufactured components when necessary but frequently they are non-critical wear parts such as aftercoolers, exhaust manifolds, fuel pumps, water inlet and outlet connections, gears, gear housings etc… Each build cycle we do is different and follows compliance standards governing re-use guidelines.

Cummins 6BTA 280 HP Marine Extended Long Block Package:

  • Cylinder Block: 3928788
  • Cylinder Head: 3966454
  • Crankshaft: 3929037
  • Camshaft: 3283179
  • Piston: 3926631
  • Injector: 4948366
  • Fuel Pump: 5260334
  • Rated speed 3000 rpm
  • Control Panel 12V or 24V (dependent on build cycle and availability)
  • Turbo: 4029160 (wet exhaust manifold)
  • SAE #3 Flywheel Housings
  • CCW rotation
  • Includes heat exchanger with Sea Water Pump
  • No Core Charge (Outright Pricing)
  • Run tested before shipment
  • Standard 12 Months Parts Replacement Warranty
  • 1 or 2 Year Parts/Labor Extended Warranties Available

Cummins 6BTA (5.9 L) Marine Extended Long Block Specs:

  • Displacement – 5.9 L (359 cu-in) Displacement
  • Cylinders – Inline 6 Cylinders Turbocharged and Aftercooled
  • Type- Mechanical
  • Combustion – Direct Injected
  • Horsepower – 280 HP @ 2500 RPM
  • Max Torque – 440 ft-lbs @1600 RPM
  • Weight (Engine Only) – 1275 lbs. (no accessories)
  • Aspiration – Turbocharged and Aftercooled
SKU: BBENG55 Categories: ,
You’ve come to the right place for all of your heavy duty diesel engine needs. We here at Big Bear Engine Company are old school machine shop guys that know the value of your time whether it be out in the field for an industrial job or at play with an off-road engine swap. We are old school machine shop guys and guarantee the workmanship of all of our engines including our Cummins 6BTA (5.9 L) Marine Diesel Engines.

Availability: In Stock



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