Water Pump SBC w. 3/8 Aux. Ports & Cam Stop

The Jones Racing Products Water Pump SBC with 3/8 Auxiliary Ports and Cam Stop (Model WP-9104-SBC-AL2) is a mechanical water pump engineered for small-block Chevy marine and high-performance engine applications. Built from aluminum with a short design profile and 3/4-inch shaft, this pump delivers reliable coolant circulation for both fresh-water and saltwater boating environments where thermal management directly impacts engine longevity and consistent performance.

The 3/8-inch auxiliary ports provide compatibility with secondary cooling system configurations—common in marine installations where auxiliary coolers, heater cores, or bypass circuits enhance temperature control under demanding conditions. The integrated cam stop prevents timing-related mechanical failure by limiting internal rotor movement, a critical feature in high-RPM marine engines where inertial forces can compromise pump integrity. The aluminum construction balances weight savings with durability, though proper corrosion inhibitors in the coolant are essential in saltwater applications to prevent galvanic degradation. At 8.42 lbs with compact dimensions (9.9 x 9.8 x 9.9 inches), this pump fits tight engine compartments without sacrificing cooling capacity.

This pump suits both weekend fishermen running stock small-block Chevy inboards and serious offshore anglers operating modified or high-output engines where OEM cooling systems fall short. Mechanics and engine builders choose Jones Racing Products for precision-engineered water pumps where factory replacements or universal marine pumps lack the engineering margin needed for extended tropical operation or sustained high-load scenarios. Proper installation with quality coolant and regular system flushing ensures years of maintenance-free operation.

Jones Racing Products is recognized within the racing and marine engine community for producing flow-optimized, durability-focused cooling components that outlast generic aftermarket alternatives. The short-design profile and auxiliary port layout reflect the brand's focus on real-world marine cooling challenges where standard automotive pumps require costly modifications or fail prematurely.