Skipper's Locker

Johnson Pump F4 Nitrile Impeller Kit, 0.31 in Flat Shaft

Brand:
Johnson Pump
Part no:
09-824P-9

Where to buy

Specifications

Material
Nitrile
Blades
6
Outside diameter
2 in
Depth (width)
0.87 in
Shaft
0.31 in
Drive
Flat shaft
Pumps it fits
F4

This is a six blade nitrile flexible impeller for the Johnson F4 pump. It measures 2 in across and 0.87 in wide, and it fits a 0.31 in shaft with a flat. The maker gives it as a replacement for Jabsco 6303-0003.

Our take

The nitrile compound is the choice to note on this 6 blade F4 impeller, since nitrile is listed as oil resistant. The 0.31 in flat shaft bore and the Jabsco 6303-0003 cross reference make it easy to check against the pump.

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