This part is listed by BMW as BMW part number 17111709333 (17 11 1 709 333) and is described as the radiator support bracket used on E30 325i 88+ (right side), E34 525i/535i/M5 (left side), E32 735i (right side). It's listed as 10mm.
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 is a Genuine BMW radiator bracket with a two year warranty. Buying a Genuine part will usually be more expensive than an OEM or aftermarket brand but you are assured that it meets BMW's designs for fitment, performance, and longevity. It will also be the very latest design, incorporating any updates or revisions that an aftermarket brand typically will ignore.
For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.
BMW Fitments:
3 Series
E30 (84-91) > 325i
E30 (84-91) > 325is
E30 (84-91) > 325ix
5 Series
E34 (89-95) > 525i M20
E34 (89-95) > 525i M50
E34 (89-95) > 535i
E34 (89-95) > M5 (91-95)
7 Series
E32 (88-94) > 735i
E32 (88-94) > 735iL