Genuine BMW part 12 42 1 438 388: Cap nut. The number stamped on the part is 12421438388; BMW's catalog files it under the short number 1438388. You will find it on our Electrical shelf, under Other Engine Electrical System parts.
It fits every E46 body style (320i, 325i and 330i, 2001–2006), with the M54 or M56 engines — and the European-market versions.
BMW draws it on 7 diagrams, among them Intake manifold system (11_2879) and Intake manifold system (11_3405).
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.
