MAHLE 41706.040 Engine Piston Ring Set Oversize - 0.040

The MAHLE 41706.040 is an oversize engine piston ring set engineered to OEM specifications for use during engine rebuilds requiring a +0.040" (1.00mm) overbore. MAHLE is a globally recognized original equipment manufacturer supplying piston rings to major automotive and powersports OEMs, ensuring this set meets or exceeds factory tolerances for a reliable, long-lasting engine rebuild.

Key Features:

• Oversize designation: +0.040" for use in bored or worn cylinders honed to the appropriate oversize
• Manufactured to OEM fit, form, and function standards
• Precision-ground ring faces for optimal cylinder wall seal and oil control
• Includes compression rings and oil control ring(s) for a complete ring pack
• Designed for reduced blow-by, improved compression retention, and controlled oil consumption
• Surface treatments and materials selected to match original engine specifications

MAHLE piston rings are produced using high-quality cast iron and steel alloys with advanced coatings such as physical vapor deposition (PVD) or chrome where applicable, providing excellent wear resistance and break-in characteristics. This ring set is the correct solution when cylinders have been machined 0.040" over standard bore during an engine overhaul.