Description
SIERRA Mercury 10-40 HP Water Pump Impeller – 18-3008
Water-pump impeller for specified older Mercury 10, 16, 20, 22, 30 and 40 HP serial-number ranges using OEM 47-20813 / 47-25287. Sierra designs the replacement around the specified OEM pump geometry and interchange references.
- Application: specified older Mercury 10, 16, 20, 22, 30 and 40 HP serial-number ranges using OEM 47-20813 / 47-25287
- Function: Circulates raw cooling water through the engine cooling system; a worn, hardened or damaged impeller can reduce water flow and cause overheating.
- Component: Flexible water-pump impeller
- Blade count: 6
- Interchange: Mercury Marine: 47-20813, 47-25287
Verify the engine model, serial range, pump housing and original impeller number before installation. Inspect the housing, wear plate, key and gaskets at the same time; replace damaged companion parts rather than installing a new impeller into a worn pump.
Specifications
- Component: Flexible water-pump impeller
- Blade count: 6
- Fitment note: Serial-number dependent; verify exact engine serial before ordering
Interchange / Replaces
- Mercury Marine: 47-20813, 47-25287
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