Exchange primary catalytic converter
18 31 7 785 91118317785911·short number 7785911Genuine BMW Part
Photos coming soon — see the BMW diagram below
01 View BMW DiagramSee this part on the official exploded view→Exchange primary catalytic converter — a genuine BMW part, number 18 31 7 785 911. The number stamped on the part is 18317785911; BMW's catalog files it under the short number 7785911. You will find it on our Exhaust shelf, under Other Exhaust system parts. It supersedes the older numbers 7785557 and 7788000, so a part carrying any of them 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 the Catalytic converter/front silencer (18_0377) diagram. It weighs about 6.7 kg (15 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
Details
18 31 7 785 911183177859117785911No fitment data available for this part.
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- 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.