Sherwood 30000K Neoprene Impeller Kit, 4-1/2 in
- Brand:
- Sherwood
- Part no:
- 30000K-SHW
Image: Fisheries Supply
Where to buy
Specifications
- Material
- Neoprene
- Blades
- 10
- Drive
- 10 tooth spline
- Kit contents
- Impeller, gasket, o-ring, service guide
This Sherwood kit pairs a neoprene impeller with a gasket and an o-ring. The impeller is 4-1/2 in across and 4-5/16 in wide, with 10 vanes and a 10 tooth spline drive. Neoprene is rated to a maximum of 130°F. Sherwood notes that one impeller can fit more than one pump application, so check your pump against the dimensions and spline rather than the name.
Our take
The 10 tooth spline and 4-1/2 in diameter are what you match against your pump, and the 10 vane neoprene impeller has a 130°F ceiling to respect. The kit adds a gasket and o-ring so the change-out is covered.
From our buying guide
The impeller depends on the pump, so find it by the pump's model number. Makers' schedules differ, with some saying every year and others every 300 hours or three years, so go by the one for your engine.
Check before you buy:
- It matches your old one on blade count, shaft diameter, outside diameter, material, drive type and depth.
- You've checked any substitute against the pump housing, since cross-references are the makers' own claims.
- The material suits the job. Jabsco recommends neoprene for engine cooling, and nitrile for bilge pumping and water with oil or diesel.

