MAHLE 51247CP.030 Engine Piston Ring Set Oversize - 0.030

The MAHLE 51247CP.030 is a complete engine piston ring set ground to 0.030" (0.762mm) oversize specifications, designed to restore proper cylinder sealing and compression in worn or rebuilt engines. MAHLE Original is a globally recognized OEM supplier trusted by major vehicle manufacturers, and this ring set meets or exceeds original equipment standards for fit, finish, and durability.

Piston rings are a critical engine component responsible for sealing combustion gases, regulating oil consumption, and transferring heat from the piston to the cylinder wall. Replacing worn rings during an engine rebuild restores compression, reduces blow-by, and minimizes oil burning.

Key Features:

• 0.030" Oversize — designed for cylinders bored 0.030" over standard diameter
• OEM-quality materials and manufacturing tolerances for reliable long-term performance
• Complete set includes compression rings and oil control rings for all cylinders
• Precision ground to ensure proper end gap and ring seal
• Manufactured to MAHLE's strict quality standards as a leading OEM supplier
• Designed for use in engine rebuilds and overhaul applications

MAHLE Original piston ring sets are a trusted choice for professional engine builders and rebuilders seeking OEM-grade components. The .030 oversize designation (also referred to as +0.030") is the most common overbore size used in engine machining and rebuilding.