MAHLE 4035MS Piston Ring Set Bore File Fit - 4.030 1/16 1/16 3/16

The MAHLE 4035MS piston ring set is designed for engines with a 4.030" bore diameter (+.005" oversize) and features a file-fit design for precise end gap adjustment. This standard tension ring set uses the popular 1/16", 1/16", 3/16" configuration, providing an excellent balance of sealing performance and durability for street and performance applications.

Ring Configuration:

• Top Ring: Ductile iron construction with plasma moly coating and barrel face profile for superior wear resistance and oil control
• Second Ring: Cast iron with reverse twist design to enhance sealing and prevent oil migration
• Oil Ring: 3-piece steel rail design for optimal oil control and cylinder wall conformability

Key Features:

• 4.030" bore diameter with .005" machining tolerance
• File-fit design allows precise end gap customization for your specific application
• Standard tension for reliable sealing in street and mild performance engines
• Ultra-flat ring flanks maximize ring-to-piston groove sealing
• Advanced ring profiles minimize friction for improved horsepower and efficiency

MAHLE is a pioneer in piston ring technology, utilizing advanced simulation and computer modeling to develop rings that reduce friction and unlock free horsepower. These rings are engineered to deliver measurable performance gains on the dyno and proven reliability on the track.