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 rotating assembly in the 5.9L Cummins Marine engine includes the crankshaft, connecting rods, pistons, and bearings. It converts combustion force into rotational power. Precision machining ensures balanced rotation and reduced vibration. High-strength materials resist fatigue and wear. Bearings support smooth movement under heavy loads. The assembly endures constant stress from marine operation. Proper maintenance extends engine life and performance.
