Cummins Marine Diesel Engine Raw Water Pump Impeller - Replaces 3974456

Cummins 3974456 Replacement Impeller

Aftermarket OEM style impellers for bronze engine driven sea water pumps on inboard engines and generators.

Kit includes: cover plate, O-ring and impeller lubricant.

Cummins: 3974456

Used on Cummins engines:

Engines with 5265994 pump and all QSB engines.

Impeller specifications:

Material: Neoprene

Diameter: 84mm

Width: 73mm

Shaft type: spline 3/4"