MAHLE 40843CP.020 Perfect Circle Premium Piston Ring Set Oversize - 020

The MAHLE Perfect Circle 40843CP.020 is a premium piston ring set engineered to meet or exceed original equipment specifications. Manufactured by MAHLE, a globally recognized leader in engine components, this ring set is designed to restore proper compression, control oil consumption, and deliver reliable long-term engine performance. The .020 oversize designation makes this set the correct choice for engines that have been bored 0.020 inches over the standard bore diameter.

Key Features:

• Premium Construction: Manufactured to OEM-equivalent tolerances for consistent fit and seal
• Chrome-faced Top Ring: Provides enhanced wear resistance and extended service life
• Three-Ring Set Design: Includes top compression ring, second compression ring, and oil control ring assembly
• .020" Oversize: Engineered for engines bored 0.020 inches over standard for proper fitment after machining
• OEM-Quality Materials: Ductile iron and steel construction for thermal stability and durability
• Precision Gap Tolerances: Pre-gapped to ensure proper ring end-gap for reliable compression sealing
• Trusted Brand: Perfect Circle by MAHLE has been a benchmark in piston ring manufacturing for decades

MAHLE Perfect Circle piston rings are a go-to solution for engine builders and rebuilders seeking dependable, professional-grade components. Whether used in a full engine rebuild or a targeted repair, the 40843CP.020 ring set delivers consistent performance and peace of mind. Always verify bore diameter and cross-reference with engine specifications before installation.