Model Compatibility: Fits W463 models as specified in the title. Part Number: Matches radiator hose part number 4635019284 exactly as stated. Function: Restores radiator hose function for cooling system. Application: Designed as a direct replacement for the specified radiator hose component. Fitment: Intended solely for use with vehicles requiring part number 4635019284 on W463 chassis., Manufacturer: FILWY