MAHLE 3011052B Performance Piston Ring Set Bore Plasma Steel Top Ring - 4.000in

The MAHLE 3011052B is a high-performance piston ring set designed for 4.000-inch bore applications. This premium ring set features advanced materials and coatings engineered to deliver superior sealing, reduced friction, and extended durability in demanding performance and racing environments.

Key Features:

• Plasma Steel top ring construction for exceptional strength and wear resistance
• HVOF (High Velocity Oxygen Fuel) molybdenum coating reduces friction and improves oil control
• 4.000-inch bore diameter for precise fitment
• 1.0mm top ring thickness with 0.143-inch radial wall thickness
• Bulk packaged ring set for engine builders and professional applications
• Engineered for high-performance and racing applications where reliability is critical

MAHLE piston rings are manufactured to OEM specifications and beyond, utilizing advanced materials and coatings developed through decades of motorsports experience. The plasma steel top ring material provides superior thermal stability and resistance to micro-welding, while the HVOF moly coating ensures optimal friction characteristics and scuff resistance during break-in and sustained high-load operation.