Current Lead Times: In Stock Engines Ship Same or Next Day - Out of Stock: 1-3 Weeks on Most Long Block Engines; 3-5 Days on Heads – *call us for more exact lead times for your specific build
The 2004.5–2007 Cummins 5.9L marine engine delivers strong, efficient power for demanding marine use. Its 24-valve design and Bosch high-pressure common rail system improve fuel control, throttle response, and emissions.
A cast iron block, forged crankshaft, and strengthened internals handle continuous high loads without compromise. The engine resists heat and corrosion with a closed cooling system and marine-grade components, making it ideal for workboats, fishing vessels, and cruisers.
Run with confidence—power your vessel with the proven 5.9L Cummins marine engine.
Building engines the way the OEM factory should have in the first place.
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