This set includes six piston ring assemblies with an 88mm bore diameter, designed for M276 3.0T (2996cc) and 3.5T (3498cc) V6 DOHC turbocharged engines.Each assembly features a piston pin bore of 22mm and a pin length of 50mm.Ring thicknesses are 1.2mm (), 1.5mm (second), and 2.0mm (oil control).These piston rings are engineered to help restore engine compression and reduce oil consumption.Compatible with vehicles equipped with the M276 engine platform, including: C400, C450, C43 (W205); E400, E43 (W212, W213); CLS320, CLS400 (C218); GL400, GL450, GLE320, GLE400, GLE450, GLE500 e Hybrid, GLE43 (X166, W166); ML320, ML400 (W166); S320, S350 L, S400, S450, S450 L, S550 e Hybrid (W222); and SL400 (R231).