Genuine BMW part 23 42 7 507 065: Expansion tank kit. The number stamped on the part is 23427507065; BMW's catalog files it under the short number 7507065. You will find it on our Transmission shelf, under Other Manual gearbox parts.
It fits the E46 sedan and coupe (325i and 330i, 2001–2006), with the M54 engine.
BMW draws it on the GS5S31BZ(SMG) Expansion tank / Pump (23_0933) diagram. It weighs about 181 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.
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.
