Jabsco 6303-0001-P Single Flat Drive Impeller, Neoprene
- Brand:
- Jabsco
- Part no:
- 6303-0001-P
Image: Powerboat Supply
Where to buy
Specifications
- Material
- Neoprene
- Blades
- 6
- Drive
- Single Flat
This is a Jabsco single flat drive impeller with 6 neoprene blades and a plastic insert. The shaft diameter is 5/16 inch. The maker uses neoprene impellers for engine cooling plus fresh or salt water transfer, and says neoprene tolerates only a little oil or diesel fuel. For bilge pumping or heavily contaminated water it points to nitrile. New impellers should be greased when fitted, and replaced at least once a year or sooner depending on engine duty.
Our take
Neoprene blades handle engine cooling and fresh or salt water transfer, but the maker points bilge pumping and oily water to nitrile. If the pump also does bilge duty, a nitrile impeller is the one to look at.
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.

