Sherwood 18000K Neoprene Impeller Kit, 3-3/4 in x 4 in
- Brand:
- Sherwood
- Part no:
- 18000K-SHW
Image: Fisheries Supply
Where to buy
Specifications
- Material
- Neoprene
- Blades
- 12
- Depth (width)
- 4 in
- Drive
- 14 tooth spline
- Kit contents
- Impeller, gasket, o-ring, technical service guide
This is a Sherwood neoprene impeller kit, number 18000K. The impeller is 3-3/4 in in diameter and 4 in wide, and fits a 15/16 in shaft. The kit also holds a gasket, an o-ring and a technical service guide. The maker says neoprene snaps back well because of its elasticity, with a maximum temperature of 130°F. One impeller can fit more than one pump.
Our take
The 130°F maximum temperature of the neoprene is the figure to check against the water your pump sees. The kit adds a gasket and o-ring to the 3-3/4 in by 4 in impeller, so the seals come in the same box as the impeller.
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.