S&S Cycle Oil Pump Check Valve Spring 10-Pack for 1936-1999 Harley-Davidson Big Twin

S&S Cycle Oil Pump Check Valve Spring 10-Pack for 1936-1999 Harley-Davidson Big Twin

The check valve spring maintains oil pressure and prevents backflow in your Big Twin oil system, playing a direct role in lubrication reliability. Weakened or broken springs allow oil to bypass the check valve, reducing pressure and potentially starving critical engine components. This ten-pack ensures you have fresh springs on hand for a complete oil system service or rebuild.

Key Features

• Ten-spring value pack for complete oil system service or multiple rebuilds
• Maintains correct check valve tension to prevent oil backflow and pressure loss
• Designed to S&S Cycle specifications for consistent spring rate and performance
• Fits 1936-1999 Harley-Davidson Big Twin oil pump check valve applications

Technical Specifications

• Application: 1936-1999 Harley-Davidson Big Twin oil pump
• Contents: 10 check valve springs
• Wire diameter: .020 inch
• Dimensions: .265 inch x .319 inch x 1.940 inch

Fitment Notes

• Fits 1936-1999 Harley-Davidson Big Twin oil pump check valve applications
• Replace check valve springs whenever the oil pump is disassembled for service
• Review the Fitment tab for complete year and model compatibility