MAHLE 3011228 Performance Piston Ring Set Bore Steel - 3.326in 1.0mm HV385

The MAHLE 3011228 Performance Piston Ring Set is engineered for high-performance engines requiring maximum durability and reduced friction. Designed for a 3.326-inch bore diameter, this advanced ring pack features MAHLE's patented HV385 supersonic thermal spray coating on the steel top ring, delivering superior bonding strength, exceptional scuff resistance, and extended service life compared to conventional coatings.

Key Features:

• 3.326-inch (84.50mm) bore diameter
• Ultra-thin 1.0mm x 1.0mm x 2.0mm ring pack configuration for reduced friction and increased horsepower
• Steel top compression ring with HV385 thermal spray face coating combining hard, self-lubricating metal and ceramic alloys
• Steel napier-style second ring with 0.143-inch (3.63mm) radial width for superior oil control
• Advanced CP-20 design oil control ring with chemically polished rails and 20-degree ear angle for improved side seal
• Plasma-moly coating provides excellent wear resistance and cylinder wall protection

Performance Benefits:

• Minimized friction losses translate to measurable horsepower gains on the dyno
• Ultra-flat ring flanks maximize ring-to-piston sealing efficiency
• Enhanced scuff resistance protects both rings and cylinder bores under extreme conditions
• Superior oil control prevents blowby and maintains consistent compression
• Reduced ring pack height lowers overall ring mass for decreased cylinder wall drag

MAHLE pioneered the use of computer simulation and development tools to engineer piston rings that deliver "free" horsepower by successfully minimizing parasitic friction losses. The HV385 thermal spray coating offers strength and toughness comparable to gas nitride, PVD, and DLC treatments while maintaining the scuff resistance characteristics of plasma-moly coatings. This makes the ring set ideal for street performance, racing, forced induction, and nitrous applications where durability and sealing are critical.

The file-fit design allows for precise end gap adjustment to match your specific application requirements and ensures optimal ring seal under varying operating conditions.