MAHLE 3010978 Plasma Moly Piston Ring Set Bore - 4.090 1.5mm 1.5mm 3.0mm

The MAHLE 3010978 piston ring set is engineered for high-performance engine builds requiring a 4.090-inch bore diameter. This premium ring set features advanced plasma-moly face coatings for superior wear resistance and oil control in demanding applications.

Key Specifications:

• Bore diameter: 4.090 inches
• Top ring: 1.5mm plasma moly-faced compression ring
• Second ring: 1.5mm steel compression ring with moly coating
• Oil ring: 3.0mm (standard 3-piece design)
• Material: High-quality steel construction
• Coating: Plasma moly face treatment for reduced friction and enhanced durability

Features and Benefits:

• Plasma moly coating provides excellent scuff resistance during break-in and high-load conditions
• Precision-manufactured ring profile ensures optimal cylinder sealing and compression
• Low-tension design reduces friction for improved horsepower and fuel efficiency
• Steel construction offers strength and heat resistance for performance applications
• OEM-quality MAHLE engineering backed by decades of motorsports and production engine experience

This ring set is ideal for engine rebuilds, performance upgrades, and racing applications where reliability and power are critical. MAHLE piston rings are trusted by professional engine builders and enthusiasts worldwide for their consistent quality and proven performance.