MAHLE 50722.040 Original Precision-Ground Engine Piston Ring Set 0.040 Oversize

The MAHLE Original 50722.040 is a precision-ground engine piston ring set manufactured to OE specifications in a 0.040-inch oversize bore dimension, designed for engine rebuilds and re-ring applications requiring restored cylinder sealing performance.

MAHLE Original piston rings are engineered to meet or exceed OEM standards, offering premium materials, optimized ring tension, and installer-friendly design features. The .040 oversize designation makes this set suitable for cylinders that have been bored 0.040" over the standard specification.

Key Features:

• OE-quality construction manufactured under strict quality controls to ensure proper fit and function
• Precision-ground design cannot be installed incorrectly, reducing installation errors
• Premium or moly/chrome-faced top compression rings for extended service life under severe operating conditions
• 3-piece oil ring assembly with stainless steel expander between two chrome-faced steel rails for superior cylinder wall conformability
• Barrel-faced compression ring contact area for more efficient compression sealing
• CNC-controlled gap chamfer to optimize compression and reduce blow-by
• Intermediate rings feature a reverse-twist design for improved groove-side sealing
• 0.040" oversize bore for use with cylinders bored 0.040" over standard

MAHLE is a globally recognized OE supplier to the world's largest engine manufacturers. Their piston rings are designed to minimize friction and ring mass while reducing oil consumption and delivering long service life. The MAHLE Original 50722.040 ring set is an ideal choice for engine overhauls and rebuilds demanding reliable, high-quality replacement components.