Reducer — a genuine BMW part, number 11 15 1 730 407. The number stamped on the part is 11151730407; BMW's catalog files it under the short number 1730407. You will find it on our Engine shelf, under Crankcase ventilation.
It fits the E36 sedan, coupe and convertible (320i, 325i and M3, 1992–1995), with the M50 or S50 engines.
BMW draws it on the Crankcase-Ventilation (11_1284) diagram. It weighs about 8 g (under 0.1 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
Every used part is inspected and graded before listing. Condition grades:
Good — minimal wear, fully functional.
Fair — normal wear, fully functional.
Acceptable — visible wear, still functional.
Returns: 30 days if a part arrives damaged or isn't what the listing described. Full policy.
Shipping: Ships within the US. Orders ship within 1–2 business days; small parcels ship free on orders of $75.00 or more. Oversize items ship at a flat $49.99 each — free shipping does not cover them.