MAHLE 3011090B Performance Piston Ring Set Bore Plasma Steel HVOF Moly - 4.285

The MAHLE 3011090B is a high-performance piston ring set engineered for serious engine builders and performance enthusiasts. This bulk pack ring set features MAHLE's advanced plasma steel top ring technology with HVOF (High Velocity Oxygen Fuel) molybdenum coating for exceptional durability and sealing performance in demanding applications.

Advanced Ring Technology:

• 4.285-inch bore diameter for precision fitment
• Ultra-thin 1.0mm top ring profile for reduced friction and improved performance
• 0.143-inch radial width (RW) design
• Plasma steel construction manufactured from SAE 9254 steel for superior tensile strength
• HVOF moly face coating provides extended service life and excellent scuff resistance
• Reduced ring mass improves sealing dynamics and high-RPM performance

Performance Benefits:

• Lower friction design delivers measurable horsepower gains
• Enhanced sealing efficiency reduces blow-by and maintains compression
• Exceptional wear resistance minimizes groove pound-out problems
• Superior scuff resistance protects cylinder walls during break-in and high-load operation
• Improved ring stability under extreme combustion pressures

MAHLE's plasma steel ring technology combines the strength and fatigue resistance necessary for high-performance and racing applications. The proprietary HVOF thermal spray coating process creates a molecular bond that significantly outlasts conventional coatings while maintaining excellent lubricity against the cylinder wall. This bulk pack format is ideal for professional engine builders, machine shops, and racers building multiple engines.

Note: This is a bulk ring set sold individually. Professional installation and proper ring gap verification required. Intended for performance and racing applications.