Piston Ring Set 4.135 Moly 1.2 1.5 3.0mm

The Piston Ring Set 4.135 Moly 1.2 1.5 3.0mm is designed for serious engine builders and performance mechanics who require precise ring fitment for oversized or custom-bored applications. This set is essential for ensuring proper compression sealing, oil control, and blow-by reduction in high-displacement or modified engines where standard stock rings may not suffice.

Featuring moly-coated compression rings with three distinct ring gaps of 1.2mm, 1.5mm, and 3.0mm, this set optimizes sealing dynamics across the compression and oil control zones. The molybdenum coating on the compression rings reduces friction and enhances scuff resistance during cold starts and high-load conditions. The stratified gap configuration ensures consistent pressure containment across varying RPM ranges and cylinder pressures.

This piston ring set is ideal for engine shops, rebuilders, and enthusiasts performing full-stroke or bore-up modifications on both domestic and import platforms that require a 4.135-inch ring diameter. Proper installation is crucial for achieving the longevity and reliable power output expected from performance engines.