This part is listed by BMW as BMW part number 17127535531 (17-12-7-535-531) and is described as the Lower Radiator Hose for 2018-2019 G01 X3 30i, G02 X4 30i with the B46A turbo 4-cylinder 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 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 cooling system hoses as a preventative measure before they fail in order to save you from further headaches and expenses.
This is a X3 cooling hose manufactured by Rein Automotive (CRP) - a front-line supplier of original equipment, private label, and in-house engineered replacement parts. Rein replacement products meet or exceed all of BMW's original design, fitment, and performance requirements and they carry out testing with ISO and German TUV for quality control. Rein 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.
For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.
BMW Fitments:
X3 Series
G01 X3 (2018-2024) > X3 sDrive30i (2018-2019)
G01 X3 (2018-2024) > X3 xDrive30i (2018-2019)
X4 Series
G02 X4 (2019-2025) > X4 xDrive30i (2018-2019)