MAHLE 42427020 Engine Piston Ring Set 0.020 in. Oversize

The MAHLE 42427020 (also referenced as 42427.020) is an engine piston ring set engineered for 0.020-inch oversize bores, designed for use during engine rebuilds where cylinders have been bored or honed beyond standard dimensions. MAHLE is a globally recognized OEM and aftermarket supplier, producing piston rings to meet or exceed original equipment specifications for fit, sealing performance, and durability.

Key Features:

• Designed for 0.020-inch oversize bore applications, suitable for engines requiring overbore during rebuild
• Engineered to OEM specifications for precise piston-to-wall fit and consistent combustion chamber sealing
• Rings are pre-lapped for fast, reliable seating and virtually no break-in time required
• Ring materials and coatings optimized for reduced friction and extended service life
• Compression rings feature a barrel-faced contact area for more efficient sealing and reduced blow-by
• CP-20 style oil ring assembly with three-piece design for thorough oil control and efficient oil drain-back
• Manufactured by MAHLE, a trusted OEM-level supplier to automotive and heavy-duty engine applications

The MAHLE 42427.020 piston ring set is a dependable choice for professional engine builders and rebuilders seeking OEM-quality components. Each set is engineered for straightforward installation and long-lasting performance in rebuilt engines.