MAHLE 41510CP.030 Premium Plasma-Moly Piston Ring Set Bore - 4.030in L4

The MAHLE 41510CP.030 is a premium plasma-moly piston ring set engineered for 4-cylinder (L4) engines with a 4.030-inch bore. Featuring a shallow oil ring groove design, this set is built to OE standards and delivers professional-grade performance for engine rebuilds and overhauls.

MAHLE piston ring sets are designed to be installer-friendly and arrive pre-lapped to seat immediately, virtually eliminating break-in time. Ring materials, coatings, and tension levels are all optimized to minimize friction, reduce oil consumption, and extend service life.

Key Features:

• Bore Size: 4.030 inches
• Ring Thickness: 5/64 in. (top) / 5/64 in. (intermediate) / 3/16 in. (oil)
• Top Ring Facing: Plasma-moly for superior wear resistance and reduced friction
• Compression Rings: Barrel-faced contact area for more efficient compression; CNC-controlled gap chamfer to reduce blow-by
• Intermediate Ring: Reverse twist design for better groove side sealing with taper race machining to enhance contact
• CP-20 Oil Ring Assembly: Exclusive 20-degree ear angle for optimal cylinder wall sealing; chemically polished expander for enhanced oil drain-back
• Shallow oil ring groove design
• Application: 4-cylinder (L4) engines
• Sold as a complete set

MAHLE is a globally recognized OE supplier whose piston ring technology is driven by stringent original equipment requirements. The 41510CP.030 set delivers the same quality and precision engine builders rely on for lasting compression sealing and oil control.