MAHLE 42077CP.030 Engine Piston Ring Set Oversize - 0.030

The MAHLE 42077CP.030 is a precision-engineered engine piston ring set sized 0.030" (0.76mm) over standard bore, designed for use during engine rebuilds or overhauls where the cylinder bores have been bored and honed to the first standard oversize. MAHLE is a globally recognized OEM and aftermarket supplier trusted by professional engine builders for consistent quality and exacting tolerances.

Key Features:

• 0.030" Oversize: Engineered for cylinders bored 0.030" over standard — the most common first oversize used in engine rebuilding
• OEM-Grade Materials: Manufactured to original equipment specifications using high-quality cast iron and/or steel ring materials
• Complete Ring Set: Includes compression rings and oil control rings for all cylinders in the application
• Precision Ground Profiles: Ring face geometry and end gaps are precision-controlled for optimal sealing and minimal blow-by
• Phosphate or Nitrided Finish: Surface treatments promote ring seating and improve wear resistance
• MAHLE Quality Assurance: Produced by one of the world's leading OEM engine component manufacturers, supplying major automotive brands globally

The MAHLE 42077CP.030 piston ring set is the professional engine builder's choice for reliable compression sealing, oil control, and long-term engine durability in a freshly machined bore. Always verify cylinder bore diameter with a bore gauge before selecting ring oversize.