This Upper Radiator Hose is a OEM replacement for your E39 540i and E38 740i/iL with the M62TU engine. Rubber hoses are ideal when new, as they allow some movement and flexibility during driving. The only problem is that they begin to degrade as they age and can eventually fail. The plastic clips and metal retaining clamps on the E46 hoses are stronger than before but they are only really good for one-time use. Once removed they never seem to seal as well, leading to a leak soon after. A new hose is recommended any time the old one is disconnected (unless it's only a couple of years old).
We highly recommend that you replace your radiator hoses as a preventative measure before they fail in order to save you from further headaches and expenses.
This is an OEM upper radiator hose manufactured by Rein Automotive - the original supplier to BMW for this part, as well as many other rubber hoses and other components. As the OEM it meets all of BMW's original design, fitment, and performance requirements and is TUV approved. OEM parts are the best alternative to more expensive Original BMW parts because they are virtually identical without the inflated price tag. This part has a two year warranty.
E39 (97-03) > 540i
E38 (95-01) > 740i
E38 (95-01) > 740iL