MAHLE 41731 Original Premium Engine Piston Ring Set

The MAHLE 41731 is a premium Original equipment-grade engine piston ring set engineered for reliable compression sealing, reduced oil consumption, and long service life. MAHLE is the world's largest piston ring manufacturer, with over a century of experience supplying original equipment and aftermarket piston rings for light and heavy vehicle applications. Over 60% of production engines built in North America use MAHLE pistons or rings, making MAHLE the trusted choice for professional engine builders and rebuilders.

Key Features:

• Pre-lapped finish for immediate seating and virtually no break-in time required
• Optimized ring tension — ring materials, coatings, and tension are balanced for reduced friction and extended service life
• Barrel-faced compression rings provide more efficient compression sealing and a CNC-controlled gap chamfer to minimize blow-by
• Intermediate (second) rings feature a reverse twist design for improved groove side sealing and taper-race machining for enhanced cylinder wall contact
• CP-20 oil ring assemblies include a 20-degree ear angle for superior side sealing against the cylinder wall, plus a chemically polished expander for enhanced oil drain-back
• Alloy steel compression rings deliver the strength needed for today's high-output, high-temperature engine environments
• Engineered to meet or exceed OEM specifications for compression retention and oil control

MAHLE Original piston ring sets are the rings of choice for professional engine rebuilders seeking installer-friendly fitment, OE-quality materials, and dependable long-term performance. This set is designed as a direct OEM-quality replacement, restoring proper compression and reducing oil consumption during engine overhaul or rebuild.