Piston Ring Set 4.125 5/64 5/64 3/16

The Hastings Piston Ring Set 4.125 5/64 5/64 3/16 is an OEM-quality compression and oil control ring assembly designed for high-performance engine rebuilds and stock restorations. Piston rings are essential for sealing the combustion chamber and regulating oil film thickness on cylinder walls, making them critical for engine performance and longevity.

This Hastings ring set features a 4.125-inch bore diameter with dual compression rings (5/64-inch thickness each) and a 3/16-inch oil control ring. The three-piece design effectively balances gas sealing efficiency with oil management, minimizing blow-by and protecting fuel economy. The materials used typically include chrome-plated steel for the compression rings and ductile iron for the oil rings, ensuring durability and heat resistance.

Ideal for rebuilding 4.125-inch bore engines, this piston ring set is suitable for both performance upgrades and classic restorations. Selecting the correct ring set is crucial for achieving optimal compression and power delivery, making this Hastings product a reliable choice for engine enthusiasts.