MAHLE 41617.060 Plasma-Moly Engine Piston Ring Set 4.310 in. Bore 0.060 Oversize

The MAHLE Original 41617.060 is a premium plasma-moly piston ring set engineered to OE specifications for a 4.310-inch bore at 0.060-inch oversize. Designed for V8 big-block applications, this set features ring thicknesses of 5/64 in. (top), 5/64 in. (intermediate), and 3/16 in. (oil) and is engineered to accommodate a shallow oil ring groove.

Key Features:

• Plasma-Moly Face Coating — Top compression rings feature a durable plasma-moly coating for reduced friction and extended wear life
• Barrel-Faced Compression Rings — CNC-controlled gap chamfer and barrel-faced contact area optimize compression and minimize blow-by
• Reverse-Twist Intermediate Rings — Taper-race machining and reverse-twist design deliver superior groove side sealing and enhanced contact
• CP-20 Oil Ring Assembly — Exclusive 20-degree ear angle provides maximum side-seal against the cylinder wall; chemically polished expander improves oil drain-back
• SAE 9254 High-Alloy Steel Construction — Delivers higher tensile and yield strength, extended fatigue resistance, and increased material hardness
• Shallow Oil Ring Groove Compatible — Specifically designed to fit pistons with shallow-cut oil ring grooves
• Pre-Lapped for Fast Seating — Rings arrive pre-lapped to seat immediately, virtually eliminating engine break-in time
• Sold as a Complete Set — Includes all rings needed for one engine application

MAHLE Original piston ring sets are developed to OE form, fit, and function standards. Ring materials, coatings, and tension values are all optimized for reduced friction, minimized oil consumption, and long service life — making them a trusted choice for professional engine builders and rebuilders alike.

Note: This product is not CARB-approved and is not legal for sale or use in California.