MAHLE 3150073-035 Fire-Power Piston Ring Set Bore File Fit - PC479 4.160in 035

The MAHLE 3150073-035 is a PC479 Fire-Power™ precision-ground performance piston ring set designed for a 4.160-inch bore (+.035" oversize). Engineered for high-output and forced-induction applications, this ductile iron ring set delivers the combustion sealing, oil control, and ring durability demanded by serious performance and racing engines.

Part of MAHLE's PC479 Fire-Power™ series, these rings are purpose-built to handle the extreme conditions of nitrous oxide-injected, turbocharged, and supercharged race engines while also suiting high-performance street builds.

Ring Set Specifications:

• Bore Size: 4.160 in. (+.035" oversize)
• Ring Widths: 1/16" top compression, 1/16" second compression, 3/16" oil ring
• Fit: File Fit
• Tension: Standard Tension
• Material: Ductile Iron
• Cylinders: 8 (sold as a complete engine set)

Key Features:

• Barrel-faced top compression ring for instant break-in and consistent cylinder wall contact through the piston's stroke
• Napier THG (tapered hook groove) second ring for superior oil control, improved combustion gas management, and enhanced top ring stability
• CP-20™ oil control ring with a 20-degree ear angle for maximum cylinder wall sealing
• High-strength ductile iron construction resists breakage and wear under elevated temperatures and combustion pressures
• Precision ground ring flanks maximize ring-to-piston groove sealing
• Foolproof installation design helps prevent incorrect ring placement

MAHLE's PC479 Fire-Power™ piston rings are engineered to deliver superior ring durability, stable radial tension, and reliable oil control — all contributing to additional horsepower and extended engine life. Sold as a complete 8-cylinder boxed set.