ECSTuning lists 1772008801 as a Genuine Mercedes-Benz engine coolant thermostat assembly. The page?s product details show the base manufacturer number 1772008801, while the catalog URL and title also display the related formatted number 177200880164. The source describes a thermostat assembly for engine coolant service. It does not provide verified dimensions, opening temperature, included seals, or a complete application list in the available product details, so those specifications are omitted. Use 1772008801 as the primary reference and confirm the exact suffix and vehicle application before purchase.