Jabsco Impeller Kit - 12 Blade - Nitrile - 2-¼" Diameter

The Jabsco Impeller Kit – 12 Blade – Nitrile – 2-¼" Diameter is a precision replacement impeller designed for flexible impeller pumps commonly found in marine engine cooling systems, bilge pumps, transfer pumps, and general-purpose applications. This nitrile rubber impeller fits most bronze flexible impeller pump housings across major marine engine manufacturers, making it an essential spare part for boat owners and marine technicians who depend on reliable circulation and transfer capabilities.

The 12-blade configuration offers balanced flow characteristics and consistent performance across typical operating pressures. With a 2-¼" outer diameter, ½" shaft width, and 1-¼" shaft diameter, this impeller is engineered to deliver efficient water movement in standard pump cavities. The nitrile material provides good resistance to coolant, seawater, and fuel transfer applications, while the brass insert delivers durability and wear resistance in the pump drive interface. These specifications translate to reliable long-term operation in the demanding thermal and mechanical conditions of marine propulsion and auxiliary systems.

This replacement kit is ideal for boat owners experiencing reduced cooling flow, bilge pump sluggishness, or fuel transfer delays—all common signs of impeller wear. Marine operators who maintain spare impellers onboard reduce downtime during passages and can quickly restore full pump performance without waiting for replacement parts. Jabsco flexible impeller kits are manufactured to rigorous quality standards, ensuring compatibility and longevity across Jabsco pump models and many aftermarket marine pump installations.

For any vessel relying on engine cooling or fluid transfer, carrying the correct Jabsco impeller replacement (MPN 5929-0003-P) as part of routine maintenance inventory is a practical investment. Verify pump model and impeller specifications against your installation before purchase to ensure proper fit and performance.