MAHLE 51458CP.020 Engine Piston Ring Set Oversize - 0.020

The MAHLE 51458CP.020 is a complete engine piston ring set engineered to OEM standards for reliable compression restoration and long-term engine performance. This set is sized at +0.020" oversize, making it suitable for engines that have been bored 0.020" over the standard bore diameter during a rebuild or overhaul.

MAHLE is a globally recognized OEM supplier to major automotive manufacturers, and their piston ring sets are manufactured to precise tolerances for optimal cylinder sealing, oil control, and heat transfer. The rings in this set are designed to work together as a system to minimize blow-by, reduce oil consumption, and restore compression to factory specifications.

Key Features:

• +0.020" Oversize – Designed for engines bored 0.020" over standard during rebuild
• OEM-quality manufacturing – Produced by a tier-one OEM supplier to major engine manufacturers
• Complete ring set – Includes compression rings and oil control ring(s) for one piston
• Precision tolerances – Engineered for proper end gap, radial depth, and axial height to ensure consistent sealing
• Durable materials – High-strength cast iron or steel construction with surface treatments to reduce wear and promote break-in
• Restores engine performance – Helps recover compression, reduce oil consumption, and lower blow-by gases

The MAHLE 51458CP.020 piston ring set is an excellent choice for professional engine builders and serious DIY mechanics performing a complete engine overhaul. Always verify bore diameter and confirm oversize before installation.