MAHLE 4190MS-112 File Fit Piston Ring Set Bore Oversize - 4.185 005

The MAHLE 4190MS-112 is a premium file-fit piston ring set designed for precision engine rebuilds requiring exact end-gap specifications. This set is engineered for a 4.185-inch bore diameter with a +.005-inch oversize, providing optimal compression and oil control in high-performance and racing applications.

Key Specifications:

• Bore Size: 4.185 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 fitting for precise clearances

Features and Benefits:

• Premium MAHLE construction ensures durability and consistent performance
• File-fit configuration enables engine builders to achieve exact end-gap specifications for optimal sealing
• Metric ring widths (1.0mm/1.0mm/2.0mm) common in modern performance engines
• Oversize dimension (+.005") accommodates rebored or honed cylinders
• Designed for both street performance and racing applications

MAHLE piston rings are manufactured to OEM and motorsport standards, providing superior wear resistance, heat dissipation, and combustion sealing. The file-fit design gives professional engine builders the flexibility to precisely gap each ring to manufacturer specifications or custom tolerances.