Thermostat housing compatible with models using engine M157 and part numbers A2782000415, A2782000615, A2782000715, A2782000815.Fits various vehicle variants including C218, X218, W212, R231, and E63 chassis types.Designed for use in multiple configurations across different series and body styles such as CLS, E-Class, SL, GL, GLE, GLS, ML, and G-Class models produced between 2010 and 2019.Matches OEM specifications for fitment on vehicles equipped with 5.5L V8 engines.Suitable for both rear-wheel and four-wheel drive versions where applicable.Ensures proper coolant flow regulation and housing integrity under normal operating conditions.