Part Number: 762-09959K

Sherwood 09959K-SHW Raw Water Pump Impeller Kit
Keep your engine protected and your cooling system operating efficiently with the Sherwood 09959K-SHW Impeller Kit. Designed as a genuine replacement for Sherwood raw water pump systems, this kit restores proper water circulation and helps prevent overheating in a wide range of inboard marine engines.
The raw water impeller is one of the most critical maintenance items in any marine cooling system. Over time, the flexible rubber vanes can wear down, crack, or lose flexibility from heat and continuous use. Replacing the impeller at recommended service intervals helps maintain reliable cooling performance, protects internal engine components, and reduces the risk of costly engine damage.
Manufactured to Sherwood’s exact specifications, the 09959K-SHW impeller kit is built using durable marine-grade materials designed to handle demanding freshwater and saltwater conditions. Engineered as a direct replacement for compatible Sherwood pump assemblies, it delivers dependable fitment and straightforward installation.
Common Engine Fitments
The Sherwood 09959K-SHW impeller kit is commonly used on marine engines equipped with Sherwood raw water pumps, including:
- PCM Excalibur 5.7L
- PCM GT40 Ford 351
- PCM Ex343
- Indmar Assault 5.7L
- Indmar Monsoon 325 and Monsoon 340
- Crusader 350 CID and 454 CID marine engines
- Volvo Penta small-block and big-block V8 applications with Sherwood pumps
These engines are frequently found in boats such as:
- Correct Craft Ski Nautique and Super Air Nautique
- Supra Launch and Sunsport models
- Moomba Mobius and Outback series
- Malibu Wakesetter and Response boats
- MasterCraft ProStar and X-Series models
- Sea Ray cruisers and sport boats
Fitment can vary depending on raw water pump configuration and engine setup, so confirming compatibility with part number 09959K-SHW before ordering is recommended.
Key Features
- Genuine Sherwood raw water pump impeller kit
- Designed for Sherwood marine cooling systems
- Restores proper water flow and cooling performance
- Helps prevent overheating and premature engine wear
- Marine-grade materials for durability and long service life
- Direct replacement for straightforward installation
Why Routine Impeller Service Matters
A worn impeller can reduce cooling efficiency long before complete failure occurs. Regular replacement helps maintain steady water flow, protects vital engine components, and reduces the chance of unexpected breakdowns on the water.
If you’re servicing a Sherwood-equipped PCM, Indmar, Crusader, or Volvo Penta engine, the 09959K-SHW impeller kit delivers OEM-quality reliability and dependable cooling performance you can trust.