MAHLE 3150036-030 Precision-Ground Performance Piston Ring Set Oversize - 0.030

The MAHLE 3150036-030 is a precision-ground performance piston ring set manufactured to exact OEM tolerances. Engineered by MAHLE — a global leader in engine components and OEM supplier to major automotive manufacturers — these rings deliver reliable sealing, reduced oil consumption, and optimized combustion efficiency. The -030 suffix designates a +0.030-inch oversize, making this set ideal for engines that have been bored during a rebuild.

Key Features:

• Precision-ground construction for tight fitment and consistent ring end gap across all cylinders
• +0.030" oversize designation suits freshly bored or honed cylinder walls
• OEM-quality materials including ductile iron and/or steel alloy construction depending on ring position
• Optimized face coatings — top rings typically feature a wear-resistant coating (such as plasma-moly or chrome) for extended service life
• Three-piece oil control ring design for effective oil film regulation and reduced consumption
• Designed to meet or exceed original equipment specifications for compression, sealing, and durability
• Complete set includes compression rings and oil control rings for one cylinder (sold per cylinder or as a full engine set — verify quantity at purchase)

MAHLE piston rings are trusted by professional engine builders and OEM manufacturers alike. Whether completing a performance build or a stock engine restoration, the 3150036-030 provides the precision fit and long-term reliability expected from a tier-one supplier.