This part is listed by BMW as BMW part number 13641273271 (13-64-1-273-271) and is described as Fuel Injector for E30 325e and E28 528e (the M20 "eta" 6 cylinder engine.)
For questions or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.
E30 (84-91) > 325e
E30 (84-91) > 325es
E28 (82-88) > 528e