This 8-piece piston and ring set is designed for and GTS vehicles (chassis codes 957 and 970) equipped with 4.8L V8 (4806cc) naturally aspirated engines produced between 2007 and 2019.Compatible engine codes include M48.01, M48.02, M48.20, M48.40, MCX.PA, and MCX.RA.Specifications: - Standard bore size: 96.00mm (STD, no cylinder overbore required) - Wrist pin diameter: 23mm - Wrist pin length: 58mm - Ring thickness: ring 1.2mm, second ring 1.5mm, oil ring 2.0mm Replaces the following OEM part numbers: Cylinders 1-4: 94810304824 Cylinders 5-8: 94810304724 Additional compatible OE numbers: 94810304825, 94810304827, 94810304828, 94810305821, 94810305822, 94810304854, 94810304855, 94810304857, 94810304858, 94810305851, 94810305852, 94810304725, 94810304727, 94810304728, 94810305721, 94810305722, 94810304754, 94810304755, 94810304757, 94810304758, 94810305751, 94810305752.