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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

Device holder, electronics box

BMW Part Number:12 90 7 578 121
12907578121short number 7578121
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Genuine BMW Part

Photos coming soon — see the BMW diagram below

Device holder, electronics box – BMW diagram04 View BMW DiagramSee this part on the official exploded view

Genuine BMW part 12 90 7 578 121: Device holder, electronics box. The number stamped on the part is 12907578121; BMW's catalog files it under the short number 7578121. You will find it on our Electrical shelf, under Other Engine Electrical System parts.

BMW's catalog records no E36 or E46 it is fitted to; it belongs to other BMW models.

BMW draws it on the Control unit box (12_1488) diagram. It weighs about 280 g (0.6 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 90 7 578 121
Also written as129075781217578121
QualityGenuine BMW · OEM

No fitment data available for this part.

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.