Johnson Pump F3 Flexible Impeller Kit, 8 Blades
- Brand:
- Johnson Pump
- Part no:
- 09-843S-9
Image: Fisheries Supply
Where to buy
Specifications
- Material
- Nitrile
- Blades
- 8
- Outside diameter
- 1.78 in
- Shaft
- 0.31 in
- Drive
- Flat
- Pumps it fits
- F3
This Johnson Pump kit is a nitrile flexible impeller with 8 blades, made for the F3 pump. It measures 1.78 in across and 0.50 in wide, and the part number is 09-843S-9. Nitrile is the oil-resistant material in the Johnson Pump impeller range, which also includes MC97/EPDM and neoprene types for cooling duty. Fit it only where the pump model matches.
Our take
Eight blades on a 1.78 in by 0.50 in body make this nitrile impeller specific to the F3 pump, so match the pump model first. Nitrile is the oil-resistant material; the cooling impellers in the range are neoprene or EPDM.
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.