MAHLE 3011187B Performance Gas Nitrided Piston Ring Set Bore - 4.130

The MAHLE 3011187B is a high-performance plain piston ring set engineered for demanding applications requiring superior durability and sealing performance. Constructed from premium gas nitrided steel, these rings deliver exceptional wear resistance and extended service life in high-performance and racing engines.

Key Specifications:

• Bore size: 4.130 inches
• Top ring thickness: 0.043 inches
• Oil ring thickness: 0.157 inches (reduced width design)
• Gas nitrided steel construction for superior hardness and wear resistance
• Plain ring configuration without moly or chrome facing
• Sold as bulk ring set

Performance Benefits:

• Gas nitride treatment provides a hardened surface layer that resists scuffing and wear
• Reduced width oil ring improves oil control while reducing friction
• Thin top ring design minimizes ring mass for reduced flutter at high RPM
• Ideal for performance rebuilds, racing applications, and boosted engines
• MAHLE OE quality engineering for precise fitment and reliable sealing

This ring set is designed for custom engine builds and performance applications where precise bore sizing and ring specifications are critical. Proper ring gap filing and installation procedures are essential for optimal performance and longevity.