Description
SIERRA Raw Water Pump Impeller – 18-3277
The SIERRA Raw Water Pump Impeller – 18-3277 is a fitment-specific flexible water-pump impeller for marine engine raw-water cooling service. Replacing a worn, cracked or permanently set impeller helps restore the cooling-water flow the engine or drive depends on.
- Direct replacement water-pump impeller for the applications listed below
- Flexible-vane design supports consistent raw-water circulation through the cooling system
- Useful for scheduled preventative maintenance or correction of reduced pump output
- Designed around the referenced OEM dimensions and pump application
- Fitment should be confirmed by engine/drive model and OEM interchange before installation
Inspect the pump housing, wear plate/cup, seals and key or drive pin whenever the impeller is replaced. Scoring, corrosion or a damaged seal can shorten the life of a new impeller and reduce pump performance.
Specifications
- Manufacturer: SIERRA
- Part Number: 18-3277
- Product Type: Raw Water Pump Impeller
- Applications: Volvo Penta and Yanmar marine engines using the listed Johnson Pump/Volvo/Yanmar references
- Flexible raw-water pump impeller
- Verify pump model/OEM reference because similar pumps use different impeller dimensions
- OEM / Aftermarket Interchange:
- Johnson Pump: 09-102BB
- Volvo Penta: 3862281
- Yanmar: 192470-42530, 192470-42532
- Country of Origin: IT
- HS Code: 40169990
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