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3 Series Parts

Exhaust pipe catalyst cylinder 1-4 (exchange unit)

BMW Part Number:18 30 1 742 334
18301742334short number 1742334
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Genuine BMW Part

Photos coming soon — see the BMW diagram below

Exhaust pipe catalyst cylinder 1-4 (exchange unit) – BMW diagram01 View BMW DiagramSee this part on the official exploded view

This is a genuine BMW exhaust pipe catalyst cylinder 1-4 (exchange unit), part number 18 30 1 742 334. The number stamped on the part is 18301742334; BMW's catalog files it under the short number 1742334. BMW's catalog calls it “Exch. exhaust pipe catalyst cylinder 1-4”. You will find it on our Exhaust shelf, under Suspension parts exhaust.

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_0933) diagram. It weighs about 9.0 kg (20 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 Number18 30 1 742 334
Also written as183017423341742334
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.