Thermostat for EGR cooling — a genuine BMW part, number 11 71 7 787 870. The number stamped on the part is 11717787870; BMW's catalog files it under the short number 7787870. You will find it on our Engine shelf, under Exhaust-gas recirculation.
It fits every E46 body style (318d, 318td, 320d, 320td and 330d, 2001–2005), with the M47N or M57N engines.
BMW draws it on 6 diagrams, among them Emission reduction cooling (11_3335) and Emission reduction cooling (11_3473). It weighs about 160 g (0.4 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
