Piston Ring Set 4.155 1.2 1.2 3.0mm

The Piston Ring Set 4.155 1.2 1.2 3.0mm from HASTINGS is designed for builders and mechanics looking for OEM-quality ring sets suitable for precision engine rebuilds and modifications. This ring set plays a vital role in creating a proper gas seal between the piston and cylinder wall, essential for optimal engine performance.

The 4.155-inch bore diameter is ideal for mid-sized displacement engines, and the ring dimensions—1.2mm for the top and second rings, and 3.0mm for the oil ring—reflect a modern thin-wall design. This design reduces piston mass and enhances reciprocating efficiency, allowing for higher RPM capabilities compared to older, thicker ring profiles. HASTINGS piston rings are made from premium cast iron, ensuring reliable sealing during cold starts and thermal cycling.

Professional mechanics and engine builders appreciate HASTINGS ring sets for their consistency and durability in various applications, including naturally aspirated and forced-induction engines. Proper installation of these rings is crucial for achieving the best performance and longevity from your engine rebuild.