Mahle Rings GM 4.2L I6 2002-2003 Moly Ring SetMAHLE(R) piston rings are the most technically advanced piston rings in the industry. Driven by OE requirements; reducing friction and ring mass while minimizing engine oil consumption, and providing longer service life. MAHLE piston rings lead the industry for the latest piston ring technology. This Part Fits: Year Make Model Submodel 2002 Chevrolet Trailblazer LS 2002 Chevrolet Trailblazer LT 2002 Chevrolet Trailblazer LTZ 2002 Chevrolet Trailblazer