Sleek, Lightweight Profiled Finish New contrast cut black anodized bearing section and profiled reduces overall pump weight. This is the lightest racing power steering pump made. Increased Pressure Setpoint The HPD pump utilizes a non-sticking poppet-type relief valve which has been increased to 1600 PSI. This was made possible by the rigid construction design and zero tolerance clearances. Improved Performance & Flow The special design tear-drop timed porting and large #10 inlet eliminates cavitation up to 10,000 engine RPM.Durable Carburized 8620 gun-drilled pump shaft with shielded ball bearing input and 3/8” hex drive male input and female output.100% Performance Tested Every KSE pump is flow and pressure tested to strict performance specifications. Versatile Will accept all popular fuel injection pumps.