S&S CYCLE HVHP Oil Pump with Gears 31-6307

High-output engines demand more oil volume than stock pumps can reliably deliver—especially on the return side where inadequate scavenging leads to crankcase pressure, breather blow-by, and potential engine damage. The S&S HVHP Oil Pump addresses this with a redesigned gear tooth profile that increases supply-side volume by 9% and return-side capacity by 28%, ensuring consistent oil delivery and efficient return flow under sustained performance conditions. This comprehensive kit gives you the complete system needed for proper oiling on forced-induction or heavily modified applications.

• Larger gear teeth profile
• 9% wider supply gears
• 28% wider return gears
• Increased oil volume capacity
• Improved crankcase scavenging
• Reduced breather blow-by
• Includes drive shaft assembly
• Drive shaft keys included
• Snap rings and check ball
• Pressure valve spring included
• O-ring cover screws
• Miscellaneous fittings and plugs
• Gaskets and mounting hardware
• S&S breather gear kit
• Shim kit included
• Complete installation instructions
• Made in U.S.A.