MAHLE 4505ML Bore Piston Ring Set File Fit - 4.500 1/16 1/16 3/16

The MAHLE 4505ML is a high-performance piston ring set designed for 4.500" bore applications with a .005" oversize. This file-fit ring set features MAHLE's advanced low-tension design that minimizes friction to deliver measurable horsepower gains on the dyno and the track.

Ring Configuration:

• Top Ring: 1/16" ductile iron with plasma moly coating and barrel face profile for superior sealing and wear resistance
• Second Ring: 1/16" cast iron with reverse twist design for optimal oil control
• Oil Ring: 3/16" three-piece low-tension style for reduced friction and excellent oil management

Key Features:

• Low-tension design reduces friction losses for free horsepower
• Ultra-flat ring flanks maximize ring-to-piston groove sealing
• File-fit design allows precise end-gap customization for your application
• Plasma moly top ring coating provides exceptional durability under high-heat conditions
• Engineered using advanced piston ring simulation and computer development tools

MAHLE's precision manufacturing ensures consistent performance and reliability in high-performance and racing applications. The file-fit configuration gives engine builders the flexibility to precisely set end gaps for optimal compression sealing and power output.