This Genuine BMW 3-way coolant hose connects the thermostat to the water pump and coolant pipe on all E30 M3. If you are doing either a thermostat or full cooling system overhaul, this hose is a must for your parts list. This coolant line fits all E30 M3 with the S14 2.3 liter 4 cylinder engine, as produced in 1987, 1988, 1989, 1990 and 1991.
This hose is the Genuine BMW part, the same you'd find from a dealer, but at a substantially lower cost. Prices on E30 M3 cooling system hoses has gone up substantially through the years, but if you are keeping your classic E30 M3 original, there is no substitute for an original BMW replacement.
E30 (84-91) > M3