(64211363470)-Hose-Heater Hose Inlet #1 (fits 5/6/7 series (E28, E24, E23 - see details) (Continental/Germany) (1 available)

Heater Hose Inlet #1 (733i/735i (78-87) (Continental/Germany) - molded HVAC heater core coolant inlet hose (often referred to as "Water Hose Inlet 1"). This L-shaped elbow hose routes hot coolant directly from the engine's cylinder head water valve output into the firewall inlet port of the heater core assembly. It plays a critical role in providing cabin heat and is prone to developing leaks or turning soft over decades of thermal cycling. It supersedes older part number 64211370476.  (gar2-Y7)

• BMW 5 Series (E28): 528e (1982–1888), 533i (1983–1984), 535i (1985–1988), 535is (1988), and 524td.
• BMW 6 Series (E24): 633CSi (1978–1984 model years only). (Does NOT fit the 1985–1989 635CSi, which uses a different firewall routing layout).
• BMW 7 Series (E23): 733i (1978–1984) and 735i (1985–1986).