Lower Thermostat Coolant Hose, URO - E30 325i 88+, E34 525i M20

This part is listed by BMW as BMW part number 11531718982 (11-53-1-718-982) and is described as Coolant Hose for later M20. This hose carries coolant from the crossover pipe to the thermostat housing for 1988+ E30 325i, 325is, 325iX, 1988 “Super E” 325e, and E34 525i with the M20 engine.

This part is also used to convert the 1987 cooling system to the late 1988 E30 cooling system, which also requires the radiator, expansion tank, and additional hoses.

This part is manufactured by an aftermarket supplier of European auto parts, including many engine and cooling components. While not carrying OEM status, this part follows the design of the original very closely and uses similar materials. An aftermarket part may even have the same TUV approval as its OEM counterpart. This aftermarket brand has a two year warranty - the same as Genuine BMW and OEM brands.