Crank Drv for Water Pump

The K.S.E. Racing Crank Drive for Water Pump (Model KSD1011) is a precision-engineered chromoly crank-driven water pump pulley designed for high-performance racing engines where reliable coolant circulation is critical under extreme operating conditions. Built from chromoly steel and finished in black oxide for corrosion resistance, this component handles the mechanical demands of direct crankshaft-driven cooling systems in competition and street performance applications.

K.S.E. Racing specializes in engine accessory components for drag racing, circle track, and high-horsepower builds where OEM cooling solutions fall short. The chromoly construction provides superior strength compared to cast alternatives, essential when crank pulley speeds reach the 6,000+ RPM range typical in racing engines. The black oxide finish offers oxidation protection in wet engine bay environments without the cost of full plating. Weighing 0.81 lbs with compact dimensions (4.45 x 1.75 x 4.5 inches), the KSD1011 integrates into tight engine compartments while maintaining the rigid tolerances required for proper belt and pulley alignment.

This crank drive is intended for builders and enthusiasts running custom cooling systems on purpose-built race motors, supercharged/turbocharged street engines, or vintage builds requiring aftermarket water pump solutions. Direct crank-drive systems eliminate standard serpentine belt arrangements and allow precise coolant flow tuning independent of alternator and accessory loads. The KSD1011 serves as the drive interface between crankshaft and pump—a critical point where concentricity and structural integrity directly affect pump reliability at race speeds.