Mahle OE GM 4.2L 06-09 0.50MM Piston Set (Set of 6)

When you're rebuilding the top end of your 4.2L inline-6 engine, you want pistons that are built to the original equipment manufacturer's standards. This set from Mahle OE includes six pistons, each with compensated ring grooves for proper oil control and expansion-controlled designs to reduce engine noise and wear. You'll get everything you need to get started, as these pistons come with the piston rings already mounted, plus the necessary pins and clips.

Mahle is a major OE piston supplier, so you know these are well-built parts designed to meet the original specifications. The 0.50MM undersize means these are intended for engines that have been bored out to a larger size during a rebuild. This set is designed to fit a range of vehicles, including the Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Saab 9-7x from the 2006 through 2009 model years.