MAHLE 3011056B Performance Piston Ring Set Bore Plasma Steel Top Ring - 4.020

The MAHLE 3011056B is a high-performance piston ring set engineered for serious engine builds requiring enhanced durability and sealing performance. This premium ring set features a 4.020-inch bore diameter and is designed with MAHLE's advanced materials technology for competition and performance street applications.

Key Features:

• Plasma-moly steel top ring with HVOF (High Velocity Oxygen Fuel) coating for superior wear resistance and reduced friction
• 1.0mm top ring thickness provides excellent sealing and modern low-tension design
• 0.143-inch radial wall thickness optimized for high-performance applications
• Precision-manufactured to strict tolerances for consistent ring seal and minimal blow-by
• HVOF moly coating offers exceptional scuff resistance during break-in and extreme operating conditions
• Bulk packaging for engine builders and professional rebuilders

MAHLE piston rings are manufactured using advanced materials and coatings developed through decades of OEM and motorsports experience. The plasma steel construction and HVOF molybdenum coating on the top ring deliver outstanding durability in high-horsepower, high-RPM applications while maintaining proper oil control. This ring set is ideal for performance rebuilds, racing engines, and forced induction applications where ring integrity is critical.