This part is listed by BMW as BMW part number 11517507717 (11-51-7-507-717) and is described as Genuine BMW O-Ring (17x3mm) for Water Pump to Return Pipe.
This part is manufactured by an aftermarket supplier of European auto parts, including many gaskets and seals. 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. The brand may even be OEM to another manufacturer besides BMW. This aftermarket brand has a two year warranty - the same as Genuine BMW and OEM brands.
For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.
BMW Fitments:
5 Series
E60 / E61 (04-10) > 545i
E60 / E61 (04-10) > 550i
6 Series
E63 / E64 (04-10) > 645Ci
E63 / E64 (04-10) > 650i
7 Series
E65 / E66 (02-08) > 745Li
E65 / E66 (02-08) > 745i
E65 / E66 (02-08) > 750Li
E65 / E66 (02-08) > 750i
X5 Series
E53 X5 (00-06) > X5 4.4i N62 (04-06)
E53 X5 (00-06) > X5 4.8is N62
X5 Series
E70 X5 (07-13) > X5 4.8i (07-10)