MAHLE 4270MS-112 File Fit Piston Ring Set Bore Oversize - 4.265 005

The MAHLE 4270MS-112 is a high-quality file-fit piston ring set designed for precision engine builds requiring custom ring gap adjustment. This set fits 4.265-inch bore diameter pistons with a +.005-inch oversize specification, making it ideal for performance rebuilds and racing applications where exact tolerances are critical.

Key Specifications:

• Bore Size: 4.265 inches with +.005-inch oversize
• Top Ring: 1.0mm thickness
• Second Ring: 1.0mm thickness
• Oil Ring: 2.0mm thickness
• File-fit design allows custom end gap adjustment for optimal sealing
• Engineered and manufactured to MAHLE's OE quality standards

File-fit rings provide engine builders with the flexibility to precisely adjust ring end gaps to meet specific engine requirements and tolerances. MAHLE Original piston rings are designed using advanced materials and coatings to deliver superior wear resistance, reduced friction, and optimal combustion sealing throughout the engine's service life.