MAHLE 3801MS-112 File Fit Piston Ring Set 3.801" Bore 1.0mm 1.0mm 2.0mm

The MAHLE 3801MS-112 is a premium file-fit piston ring set engineered for precision engine builds requiring exact bore fitment. This ring set is designed for a finished bore diameter of 3.801 inches (3.796" + .005" oversize) and features a three-piece configuration ideal for high-performance and racing applications.

Ring Configuration:

• Top Ring: 1.0mm compression ring for superior sealing and combustion pressure containment
• Second Ring: 1.0mm compression ring providing secondary sealing and oil control
• Oil Ring: 2.0mm oil control ring for optimal lubrication management and reduced oil consumption

Key Features:

• File-fit design allows precise end-gap adjustment for optimal ring seal and performance
• Manufactured to MAHLE's OE quality standards with premium materials and coatings
• +.005" oversize specification for custom bore dimensions
• Metric ring widths (1.0mm/1.0mm/2.0mm) common in modern performance engines
• Engineered for reduced friction, improved durability, and maximum power output

MAHLE piston rings are trusted by professional engine builders and racers worldwide for their exceptional quality, precise tolerances, and proven performance. File-fit rings require proper end-gap filing and installation expertise to achieve optimal results.