64 21 8 377 781 : Engine/heating radiator water hose for BMW Series 3 E46

This water hose provides the connection between the engine and the heating radiator on the BMW Series 3 E46, in Saloon versions 316i M43 (1.6 and 1.9) and 318i M43, Touring 318i M43, as well as Coupé 316 Ci M43 and 318 Ci M43. When restoring or servicing a classic BMW Series 3 E46, replacing water hoses is an essential step to ensure the cooling system is sealed and the cabin heating functions properly. An ageing hose can crack, cause leaks and lead to engine overheating that is detrimental to the engine. Opting for a new part that complies with original specifications is the guarantee of reliable and durable restoration.