6pcs M272 M273 Piston & Ring 92.9mm Φ22mm 2720308917 2720309717 For CLK350 CLS350 C350 E350 GL450 3.5L V6 4.7L V8 Size: Piston Diameter Φ92.9mm, Length 50.83mm, Compression Height 30.43mm Compatibility: Fits M272 E35, M273 E47 engines Design and Style: engineered with advanced cooling features Performance: optimized for performance driving Quantity: 6 pieces of piston and ring set This piston and ring set is designed for use with M272 and M273 engines, providing under conditions.With a piston diameter of Φ92.9mm and compression height of 30.43mm, the set supports efficient combustion and consistent power delivery.It fits models including CLK350, CLS350, C350, E350, and GL450 equipped with 3.5L V6 or 4.7L V8 engines. Engineered for fit, this set corresponds to OE numbers 2720308917, 2720309717, and 2720304317, compatibility with specified engine configurations.The ring pack includes three rings with thicknesses of 1.5mm, 1.8mm, and 2.4mm, designed to enhance sealing performance and heat transfer, contributing to improved engine efficiency and thermal management. The set includes six complete piston and ring assemblies, ready for installation.Proper fitment can be confirmed using the vehicle's VIN or matching the part numbers.This component supports engine rebuilds and performance , offering a solution for maintaining engine integrity over use. ote: This is a third-party compatible part.Brand/model citations do not imply sponsorship or approval.