Long Block

The 2001–2002 Cummins 5.9L marine long block delivers strong torque and smooth performance. It’s built tough for demanding marine use. This turbocharged inline-six diesel includes a cast iron block, forged steel crankshaft, and precision-machined rotating parts for long life.

Choose mechanical or electronic fuel systems for clean combustion and fast throttle response. The cylinder head comes fully assembled with valves, springs, and rockers—ready for heavy-duty, saltwater conditions. Corrosion resistance and thermal durability make it ideal for trawlers, workboats, and commercial vessels.

Power your vessel with proven Cummins strength. Install a 5.9L long block built for the water.

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*Please choose the year first
*If you know your vin number before hand it is very helpful during the quotation period. Please note that this will be required before the engine is built.

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