Piston Ring Set 4.285 1.5 1.5 3.0mm

The MAHLE PISTONS Piston Ring Set 4.285 1.5 1.5 3.0mm is a precision-engineered assembly designed specifically for high-performance engine builds and stock rebuilds. This set is ideal for anyone looking to restore compression or address blow-by issues in a 4.285-inch bore engine. Quality piston rings are essential for sealing combustion pressure and regulating oil consumption, making this product a must-have for serious automotive enthusiasts.

The ring pack geometry consists of a 1.5mm top ring, a 1.5mm second ring, and a 3.0mm oil ring, all engineered for optimal gas sealing and controlled oil film thickness. MAHLE's proprietary metallurgy and surface coatings enhance durability, resisting scuffing during break-in and maintaining ring gap integrity under thermal cycling. This ensures consistent blowdown control across the RPM band, which is crucial for performance.

This piston ring set is perfect for stock restorations, performance upgrades, or marine and industrial applications. With OEM-grade reliability, it is trusted by professional rebuilders who prioritize quality in their engine internals. Whether you're freshening up a long-block or building a performance engine, this piston ring set delivers the performance and reliability you need.