MAHLE 3010992B Moly Ring Set Bore Plasma-Moly Top Ring - 4.180 1.5mm

The MAHLE 3010992B is a high-performance piston ring set engineered for precision engine builds requiring a 4.180-inch bore diameter. This professional-grade ring set features advanced materials and coatings designed to deliver superior sealing, reduced friction, and extended durability in demanding applications.

Key Features:

• 4.180-inch bore diameter for precise fitment
• 1.5mm plasma-moly steel top ring for exceptional wear resistance
• 0.151-inch radial wall (RW) thickness for optimal strength
• Plasma-moly coating reduces friction and prevents scuffing during break-in
• Engineered for performance and racing applications
• MAHLE OE-quality manufacturing standards

MAHLE piston rings are manufactured to exacting tolerances and feature advanced surface treatments that promote faster seating and improved oil control. The plasma-moly top ring provides a hard, low-friction surface that withstands high cylinder pressures and temperatures, making this ring set ideal for high-performance street engines, racing applications, and engine rebuilds where reliability and power are critical.