MAHLE 4075MS-112-1 Piston Ring Set File Fit Oversize - 1.0mm 1.0mm 2.0mm 005

The MAHLE 4075MS-112-1 is a premium piston ring set designed for single-cylinder applications requiring precise bore sizing. This file-fit ring set is engineered for 4.070-inch bore diameter with +.005-inch oversize, allowing professional engine builders to custom-fit the end gap for optimal compression and oil control.

Ring Configuration:

• Top compression ring: 1.0mm metric thickness
• Second compression ring: 1.0mm metric thickness
• Oil control ring: 2.0mm metric thickness
• Standard tension design for reliable sealing
• File-fit ends require custom gap filing for precise installation

Key Features:

• Manufactured by MAHLE, a trusted OEM supplier to major engine manufacturers
• +.005-inch oversize allows for bore customization and honing
• Single cylinder set (rings for one piston)
• File-fit design enables precise end gap adjustment for optimal performance
• Standard tension rings provide consistent cylinder sealing without excessive friction

This ring set is ideal for performance engine builds, racing applications, and precision rebuilds where exact tolerances are critical. File-fit rings allow the installer to achieve the precise end gap specification for the intended application, whether street performance, drag racing, or circle track competition.