4pcs Piston and Rings Kit for select vehicles with 2.4L 2384CC L4 DOHC 16 valve engines.Compatible with models including Captiva, Cobalt, Equinox, HHR, Impala, Lacrosse, Regal, Terrain, Verano, G5, G6, Solstice, Aura, Ion, and Vue from various years between 2006 and 2017.Features cylinder bore diameter of 88 mm.ring size is 88 x 1.20 mm, second ring is 88 x 1.50 mm, oil ring is 88 x 2.50 mm.Interchange part numbers include 12578324, 12578326, 12593744, 12593745, 12603910, 12608531, 12609858, 12616970, 12621251, 12631102, 12631103, 12631967, 12643172, 12646457, 12657184, 12659419, 12665165, 12784490, 19180835, 19180836, 89018112.Package includes 4 pistons and rings as shown in image.Installation instructions not included.