MAHLE 4170MS-112-1 Piston Ring Set File Fit - 1.0mm 1.0mm 2.0mm 005

The MAHLE 4170MS-112-1 is a single-cylinder piston ring set engineered for precision engine rebuilds requiring +.005" oversized bore dimensions. This file-fit ring set is designed for a 4.170" bore diameter and features standard tension construction for reliable sealing and performance.

Ring Configuration:

• Top Compression Ring: 1.0mm width
• Second Compression Ring: 1.0mm width
• Oil Control Ring: 2.0mm width
• Bore Size: 4.165" + 0.005" oversize
• File-fit design allows custom end-gap adjustment for optimal ring seal

Key Features:

• MAHLE OE-quality construction with premium materials and coatings
• Standard tension design for stock replacement applications
• File-fit rings require end-gap filing to match specific bore dimensions
• Single cylinder set - order quantity based on engine cylinder count
• Ideal for performance rebuilds and precision engine work

MAHLE is a leading OEM and aftermarket supplier of pistons and piston rings, known for precision manufacturing and advanced materials technology. File-fit rings provide engine builders with the flexibility to achieve exact end-gap specifications for optimal compression and oil control.