MAHLE 3011217B Performance Piston Ring Set Bore - 4.075 1/16 1/16 3/16

The MAHLE 3011217B is a high-performance piston ring set engineered for precision and durability in demanding engine applications. Designed for a 4.075-inch bore diameter, this three-piece ring set delivers superior sealing and reduced friction for enhanced engine performance.

Ring Configuration:

• Top Ring: 1/16" chrome-faced compression ring for exceptional wear resistance
• Second Ring: 1/16" compression ring with reverse twist design
• Oil Ring: 3/16" (0.190") three-piece oil control ring assembly

Advanced Features:

• D-Wall barrel face profile optimizes sealing while minimizing friction
• Plasma-moly coating on compression rings provides superior scuff resistance
• Steel construction ensures dimensional stability under high temperatures
• UCR (Under Crown Relief) design reduces ring flutter at high RPM
• RW (Reverse Wall) configuration improves oil control

MAHLE's precision manufacturing ensures consistent ring tension and perfect cylinder wall contact. This ring set is ideal for performance rebuilds, racing applications, and high-output street engines where reliability and power are critical. Each ring is individually crafted to meet strict tolerances for optimal compression sealing and extended service life.