MAHLE 4055ML-043 Piston Ring Set Bore File Fit Low Tension - 4.050 043 043 3.0mm

MAHLE 4055ML-043 piston ring set is designed for 4.050" +.005" bore applications, featuring an ultra-low friction .043", .043", 3.0mm configuration with file-fit design for precise end gap adjustment. This low tension ring set delivers measurable horsepower gains by minimizing friction while maintaining optimal cylinder sealing.

Ring Configuration:

• Top Ring: .043" ductile iron with plasma moly coating and barrel face profile for superior wear resistance
• Second Ring: .043" cast iron reverse twist design for enhanced oil control and compression sealing
• Oil Ring: 3.0mm three-piece low tension assembly for maximum oil control with minimal drag
• Bore Size: 4.050" +.005" oversize
• File Fit: Allows custom end gap adjustment for optimal performance

Performance Features:

• Ultra-flat ring flanks maximize ring-to-piston groove sealing and reduce blow-by
• Low tension design reduces friction losses for increased horsepower
• Plasma moly coating on top ring provides exceptional durability under high heat and pressure
• Developed using advanced piston ring simulation and computer modeling
• Proven performance on dyno and track applications

MAHLE's engineering expertise in friction reduction and sealing technology makes this ring set ideal for performance engine builds requiring maximum power output and reliability.