Engine Timing Chain Tensioner with 2720500811 designed for vehicles equipped with M272 and M273 engines.Fits multiple models including C300, C350, CLS550, E350, E550, G550, GL450, GL550, GLK350, S400 Hybrid, and SL550 from model years 2011 to 2015.Compatible with various engine types such as 3.0L V6, 3.5L V6, 4.6L V8, and 5.5L V8, including gas, diesel, flex, and hybrid configurations.included. Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.