MAHLE 3030912 Performance Piston Ring Set Bore - 82.5mm 2.8mm Chrome

The MAHLE 3030912 is a high-performance piston ring set engineered for 82.5mm bore applications. This ring set is part of MAHLE's Performance Metric Ring Program, designed specifically for sport compact and performance engine builds where reduced friction and improved sealing are critical.

Key Features:

• 82.5mm bore diameter for precise fitment
• 2.8mm (approximately 0.110 inch) oil control ring width
• Chrome-faced compression rings for enhanced durability and scuff resistance
• Steel construction with nitrided finish on top ring for high-temperature performance
• Reverse-twist cast iron second ring for improved oil control
• Standard tension oil control ring for reliable sealing
• File-fit design allows custom gap adjustment for various applications

MAHLE piston rings utilize advanced materials and coatings developed through decades of motorsports experience. The chrome plating on the ring faces provides excellent wear resistance and reduces friction, while the engineered ring profiles ensure optimal cylinder wall sealing throughout the power band. This ring set is designed for use with performance pistons in sport compact engines, particularly popular in European 2.0L turbocharged applications around the 82.5mm bore size.

Note: This is a replacement ring set intended for MAHLE performance pistons. Proper ring gap measurement and adjustment is required during installation. Follow MAHLE's ring gap specifications for your specific application and intended use.