Skipper's Locker

Jabsco 18838-0001-P Key Drive Neoprene Impeller, 12 Blade

Brand:
Jabsco
Part no:
18838-0001-P

Where to buy

Specifications

Material
Neoprene
Blades
12
Drive
Key

This Jabsco impeller is a key drive neoprene design with 12 blades. It measures 2-7/16" by 1-1/4" on a 5/8" shaft. Neoprene is the material for engine cooling and for moving fresh or salt water, and it tolerates just a little oil or diesel fuel. Where the water is oily, such as bilge pumping, the maker points to nitrile instead.

Our take

Twelve neoprene blades in a key drive impeller: neoprene is the engine cooling and water transfer choice, but it only copes with a little oil or diesel fuel, so oily bilge water points to nitrile instead.

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.

Sources