MAHLE 4130MS-112 File Fit Piston Ring Set Bore Oversize - 4.125 005

The MAHLE 4130MS-112 is a premium file-fit piston ring set designed for 4.125-inch bore applications with a +.005-inch oversize specification. This three-piece ring set is engineered for high-performance engine builds where precise ring end gap adjustment is critical for optimal performance and durability.

Ring Configuration:

• Top Ring: 1.0mm (metric) compression ring
• Second Ring: 1.0mm (metric) compression ring
• Oil Ring: 2.0mm (metric) three-piece oil control ring

Key Features:

• File-fit design allows precision end gap adjustment for optimal cylinder seal
• 4.125-inch bore diameter with +.005-inch oversize for worn cylinders
• Manufactured by MAHLE, a leading OEM and aftermarket piston ring supplier
• Metric ring widths for modern engine specifications
• High-quality materials and coatings for extended service life

File-fit rings require careful measurement and filing to achieve proper end gap clearance for your specific application. This allows engine builders to precisely tailor the ring gap to their performance requirements, cylinder wall finish, and intended use. Ideal for custom engine builds, performance applications, and precision rebuilds where exact tolerances are essential.