Skip to content
FREE SHIPPING on US orders over $75 (oversize excepted) • Quality used E36 & E46 parts • Every part inspected & graded
3 Series Parts

Adapter lead

BMW Part Number:12 51 9 401 635
12519401635short number 9401635
♡ Save for later
Out of Stock

One email the moment one is listed — nothing else.

Fits E36 — 318tds, 325td, 325tds
Select your vehicle to check fitment

Genuine BMW Part

Photos coming soon — see the BMW diagram below

Adapter lead – BMW diagram-- View BMW DiagramSee this part on the official exploded view

Genuine BMW part 12 51 9 401 635: Adapter lead. The number stamped on the part is 12519401635; BMW's catalog files it under the short number 9401635. You will find it on our Electrical shelf, under Engine wiring harness.

It fits the E36 sedan and touring (318tds, 325td and 325tds, 1991–1996), with the M41 or M51 engines.

BMW draws it on 8 diagrams, among them Air Conditioning System R12 (03_1946) and Air Conditioning System R134A (03_1948). It weighs about 135 g (0.3 lb).

We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.

Details

BMW Part Number12 51 9 401 635
Also written as125194016359401635
QualityGenuine BMW · OEM

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.