Mahle Rings GM 4.2L I6 2003-2005 Moly Ring Set

These Mahle Moly ring sets feature a 1.5mm top ring, 2.0mm second ring, and 4.0mm oil ring, a common configuration for GM 4.2L inline-six engines. They're built to meet the demanding requirements of original equipment manufacturers, focusing on reducing internal friction and minimizing oil consumption. This means your engine runs smoother and lasts longer.

Mahle's approach to piston ring technology aims to cut down on friction, which not only helps your engine perform better but also contributes to better fuel economy. By carefully controlling oil consumption, these rings help keep your exhaust cleaner and reduce the need for frequent oil top-offs. They are a well-built option for rebuilding or repairing engines in a wide range of GM trucks and SUVs, including models like the Chevrolet Trailblazer, GMC Envoy, and Buick Rainier from the early to mid-2000s.