The 2003–2004 Cummins 5.9L marine engine delivers strong power and reliable performance. This turbocharged inline-six uses a 24-valve design and a Bosch common rail fuel system. It runs clean, uses fuel efficiently, and responds quickly to throttle input.

The cast iron block and forged crankshaft handle tough conditions with ease. A closed cooling system and marine-grade parts protect it from saltwater and heat. This engine fits well in workboats, fishing boats, and cruisers.

Get the power your vessel needs—choose the Cummins 5.9L marine engine today.