This replacement engine coolant thermostat housing assembly is engineered to match the fit and durability of the stock housing assembly on specified vehicles. It is designed to withstand extreme temperature changes to extend service life. Vehicle model years this part fits (be sure to check your vehicle trim using the Amazon garage) - [Mercedes-Benz C400: 2015] - [Mercedes-Benz C43 AMG: 2017, 2018, 2019, 2020, 2021] - [Mercedes-Benz C450 AMG: 2016] - [Mercedes-Benz CLS400: 2015, 2016, 2017] - [Mercedes-Benz E400: 2014, 2015, 2016, 2017, 2018] - [Mercedes-Benz E43 AMG: 2017, 2018] - [Mercedes-Benz E450: 2019, 2020] - [Mercedes-Benz GL450: 2015, 2016] - [Mercedes-Benz GLC43 AMG: 2017, 2018, 2019, 2020, 2021] - [Mercedes-Benz GLE400: 2016, 2017, 2018, 2019] - [Mercedes-Benz GLE43 AMG: 2017, 2018, 2019, 2020] - [Mercedes-Benz GLE450 AMG: 2016, 2017] - [Mercedes-Benz GLE450: 2019] - [Mercedes-Benz GLE500: 2017] - [Mercedes-Benz GLE500e: 2018, 2019] - [Mercedes-Benz GLE550e: 2016, 2017, 2018] - [Mercedes-Benz GLS450: 2017, 2018, 2019] - [Mercedes-Benz ML400: 2015] - [Mercedes-Benz S400: 2014, 2015] - [Mercedes-Benz S450: 2018, 2019, 2020] - [Mercedes-Benz S450L: 2019, 2020] - [Mercedes-Benz S550e: 2015, 2016, 2017] - [Mercedes-Benz S560e: 2019, 2020] - [Mercedes-Benz SL400: 2015, 2016] - [Mercedes-Benz SL450: 2017, 2018, 2019, 2020] - [Mercedes-Benz SLC43 AMG: 2017, 2018, 2019, 2020]