MAHLE 4035MS-112 Piston Ring Set Bore File Fit - 4.030 1.0mm 1.0mm 2.0mm

The MAHLE 4035MS-112 is a premium file-fit piston ring set designed for 4.030" bore diameter engines with a +.005" oversize. This three-piece ring set features a precise configuration of 1.0mm top ring, 1.0mm second ring, and 2.0mm oil ring, providing optimal compression and oil control for high-performance and rebuilt engines.

Key Features:

• 4.030" bore diameter with +.005" oversize for precise fitment
• File-fit design allows for custom end gap adjustment during installation
• 1.0mm top compression ring for maximum cylinder sealing
• 1.0mm second compression ring for enhanced combustion control
• 2.0mm oil control ring for optimal lubrication management
• Manufactured by MAHLE, a trusted OEM supplier with over 100 years of engine component expertise
• Premium materials and coatings for durability and reduced friction

File-fit rings require precise end gap filing to match your specific engine's cylinder bore tolerances, making them ideal for professional engine builders and performance applications where exact specifications are critical. These rings are commonly used in domestic V8 engine rebuilds and performance builds requiring 4.030" bore sizing.