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

Radiator cap

BMW Part Number:17 13 7 639 023
17137639023short number 7639023
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One email the moment one is listed — nothing else.

Fits E36 / E46 — 316i, 318i, 318tds, 325td, 325tds, 318d, 318td, 320Cd +5 more
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Genuine BMW Part

Photos coming soon — see the BMW diagram below

Radiator cap – BMW diagram15 View BMW DiagramSee this part on the official exploded view

Genuine BMW part 17 13 7 639 023: Radiator cap. The number stamped on the part is 17137639023; BMW's catalog files it under the short number 7639023. You will find it on our Cooling System shelf, under Expansion tank. It supersedes the older number 1742232, so a part carrying that number is the same part.

It fits the E36 sedan, touring and compact (318i, 1992–1998), with the M40 engine — and the European-market versions. It also fits every E46 body style (318d, 318td, 320d, 320td and 330d, 1998–2005), with the M47, M47N, M57 or M57N engines.

BMW draws it on 12 diagrams, among them Radiator/Expansion Tank/Frame (17_0090) and Expansion tank (17_0116). It weighs about 60 g (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.

Details

BMW Part Number17 13 7 639 023
Also written as171376390237639023
QualityGenuine BMW · OEM
CompactM47NAllAT91

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.