MAHLE 3150005-030 Clevite Plasma-Moly Piston Ring Set 4.030" Bore Low Tension File Fit

The MAHLE Clevite 3150005-030 is a Plasma-Moly piston ring set designed for high-performance and competition engine builds requiring a 4.030" bore (+.030" oversize). Engineered under the trusted Clevite brand by MAHLE, one of the world's leading engine components manufacturers, this ring set delivers superior sealing, reduced friction, and exceptional durability under demanding conditions.

Plasma-moly (plasma-sprayed molybdenum) top rings provide outstanding wear resistance and excellent break-in characteristics. The low tension design reduces parasitic drag on the piston and cylinder wall, helping to maximize horsepower output — a critical advantage in racing and performance applications.

Key Features:

• Bore Size: 4.030" (+.030" oversize)
• Ring Widths: 1/16", 1/16", 3/16" (top, second, oil)
• Ring Type: Plasma-Moly (plasma-sprayed molybdenum face coating)
• Tension: Low tension design for reduced friction and increased power
• Fit: File fit — allows precise end gap tuning for your specific application
• Material: Carbon steel construction
• Application: Performance and competition engine builds

The file fit design gives engine builders the ability to precisely set ring end gaps to their own specifications, making this set ideal for professional engine builders and serious performance enthusiasts. MAHLE Clevite piston ring sets meet or exceed OEM quality standards and are a go-to choice for engine rebuilders worldwide.