Sierra 18-36001 Sea Water Pump for MerCruiser V6 V8 Engines

The Sierra 18-36001 is a premium-quality raw sea water pump designed for MerCruiser V6 and V8 inboard and sterndrive engines equipped with V-belt drive systems and one-piece pump bodies. This direct replacement pump is engineered to meet or exceed OEM specifications, providing reliable cooling system performance for marine engines including GM 454 and 502 CID Gen VI applications.

Key Features:

• Bi-directional brass impeller compatible with both right-hand and left-hand rotating engines
• Durable stainless steel backing plate for enhanced corrosion resistance
• Powder-coated finish to withstand harsh marine environments
• Made from new castings, not remanufactured components
• Includes brass plugs and fittings, carbon resin seal, mounting gaskets, and stainless steel seal cup and spring
• One-piece pump body design for simplified installation

Replaces OEM Part Numbers: MerCruiser 46-807151A12, 46-72774A50, and Mercury 807151A12. Also compatible with older Volvo Penzta D21 and D32 diesel engines. Use repair kit 18-3237 for service.

Sierra Marine has been manufacturing premium aftermarket marine engine parts for over 50 years, gaining the trust of engine manufacturers, boat builders, and marine technicians worldwide. Each Sierra pump is precisely matched to the original engine block design to ensure proper fit and restore cooling system function to factory specifications.