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 
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Rotating Assembly

Choate Engineering supplies rotating assemblies for the 5.9L Cummins Marine engine. These assemblies include the crankshaft, connecting rods, and pistons. Materials resist corrosion, heat, and mechanical stress. The design ensures balanced rotation and smooth power delivery. Each assembly fits precisely to maintain engine efficiency and durability. Marine-grade construction supports long-term performance under harsh conditions.