Description
SIERRA Crusader/Volvo/Jabsco 12-Fin Water Pump Impeller – 18-3061
Water-pump impeller for GM/Crusader and compatible inboard pumps with V-belt drive using Jabsco 18948-0001 / Sherwood 10615 / Volvo 835874. Sierra designs the replacement around the specified OEM pump geometry and interchange references.
- Application: GM/Crusader and compatible inboard pumps with V-belt drive using Jabsco 18948-0001 / Sherwood 10615 / Volvo 835874
- 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: 12
- Interchange: Crusader: 20300, 20310; GLM: 89611; Jabsco: 18948-0001; Mallory: 9-45708; Oberdorfer: 8922; Pleasurecraft: RP061017; Sherwood: 10615; Volvo Penta: 835874
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: 12
- Material: Neoprene
Interchange / Replaces
- Crusader: 20300, 20310
- GLM: 89611
- Jabsco: 18948-0001
- Mallory: 9-45708
- Oberdorfer: 8922
- Pleasurecraft: RP061017
- Sherwood: 10615
- Volvo Penta: 835874
Related Products
- Upsell / complete repair: SIE-18-3047
- Relationship notes: 18-3047 is the stocked Sierra repair kit that contains 18-3061 plus water-pump gaskets and quad ring.


Mark Schneider –
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