Model Compatibility: Fits W167 GLE300, GLE320, GLE350, ML300, and ML350 vehicle models as specified in the title. Part Type: Replacement engine radiator coolant hose designed to functionally match the configuration. Application Specificity: Intended for use as a coolant hose in the engine radiator system of listed models. Numeric Identification: Includes part identifiers 1675019503 and 1675012203 as stated in the product title. Functional Purpose: Restores coolant flow path and sealing interface when installed per factory-specified routing and connections., Manufacturer: BRhcRAhuE