Jabsco Impeller Kit - 9 Blade - Nitrile - 3-3/4" Diameter x 3-1/2" W, 1" Shaft Diameter

The Jabsco Impeller Kit with 9 blades in nitrile construction is a replacement flexible impeller assembly engineered for bronze flexible impeller cooling and bilge pumps across marine and stationary engine applications. With a 3-3/4" diameter, 3-1/2" width, and 1" spline-drive shaft diameter, this impeller kit delivers reliable fluid circulation in demanding saltwater and freshwater environments where corrosion resistance and pump longevity are critical.

Nitrile construction provides superior resistance to oil, fuel, and seawater exposure compared to natural rubber, extending service intervals and reducing unplanned maintenance in offshore and coastal applications. The nine-blade design balances flow efficiency with smooth operation across variable load conditions. The spline-drive shaft engagement ensures precise torque transfer without slippage, critical for maintaining consistent pump performance in engine cooling circuits and bilge discharge systems. Jabsco flexible impellers are precision-manufactured to exact tolerances, allowing straightforward retrofit compatibility with most bronze flexible impeller pump housings regardless of original equipment manufacturer.

This replacement impeller serves recreational and commercial boaters, fishing vessel operators, and marine engine technicians requiring OEM-grade replacement components. Engine builders and pump-service professionals stock this kit for routine maintenance and emergency repairs. Whether addressing wear on existing cooling systems, upgrading bilge pump capacity, or restocking spare parts for extended offshore operations, the Jabsco 9-blade nitrile impeller delivers the chemical stability and dimensional accuracy needed in salt-air environments where inferior materials fail prematurely.