Oxygen sensor
11 78 1 721 12511781721125·short number 1721125Genuine BMW Part
Photos coming soon — see the BMW diagram below
22 View BMW DiagramSee this part on the official exploded view→Oxygen sensor — a genuine BMW part, number 11 78 1 721 125. The number stamped on the part is 11781721125; BMW's catalog files it under the short number 1721125. You will find it on our Engine shelf, under Exhaust gas control systems. It supersedes the older number 1717633, so a part carrying that number is the same part.
BMW's catalog records no E36 or E46 it is fitted to; it belongs to other BMW models.
BMW draws it on 4 diagrams, among them Exhaust system with catalytic converter (18_0151) and Exhaust system with catalytic converter (18_0168). It weighs about 144 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
11 78 1 721 1251178172112517211250258003069No fitment data available for this part.
Supersession
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- Fair — normal wear, fully functional.
- Acceptable — visible wear, still functional.
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