MAHLE 4175MS-112 File Fit Piston Ring Set Bore Oversize - 4.170 005

The MAHLE 4175MS-112 is a premium file-fit piston ring set designed for precise engine building applications. This set is engineered for a 4.170-inch bore diameter with a +.005-inch oversize specification, providing the exact tolerances needed for high-performance and racing engine builds.

Key Specifications:

• Bore Size: 4.170 inches with +.005-inch oversize
• Top Ring: 1.0mm thickness
• Second Ring: 1.0mm thickness
• Oil Ring: 2.0mm thickness
• File-fit design for custom gap adjustment

Features and Benefits:

• File-fit construction allows precise end-gap tuning for optimal compression and oil control
• MAHLE's premium metallurgy and coating technology ensures superior durability and wear resistance
• Metric ring widths provide excellent sealing characteristics for modern performance applications
• Manufactured to strict tolerances for consistent ring tension and longevity
• Ideal for custom engine builds, race applications, and precision rebuilds

This piston ring set is designed for professional engine builders and performance enthusiasts who demand exact specifications and the ability to custom-fit rings to their specific cylinder bore conditions. The file-fit design requires proper measurement and filing to achieve correct end gap before installation.