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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

Sound insulation roof

BMW Part Number:51 48 3 400 121
51483400121short number 3400121
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One email the moment one is listed — nothing else.

Genuine BMW Part

Photos coming soon — see the BMW diagram below

Sound insulation roof – BMW diagram04 View BMW DiagramSee this part on the official exploded view

Genuine BMW part 51 48 3 400 121: Sound insulation roof. The number stamped on the part is 51483400121; BMW's catalog files it under the short number 3400121. You will find it on our Interior Body shelf, under Other Body equipment parts.

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

BMW draws it on the Sound Insulating Rear (51_5185) diagram. It weighs about 130 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 Number51 48 3 400 121
Also written as514834001213400121
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.