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FREE SHIPPING on US orders over $75 (oversize excepted) • Quality used E36 & E46 parts • Every part inspected & graded
Genuine BMW
BMW Part Number18 30 7 787 586

Exchange primary catalytic converter

E46 318d, 318td, 320Cd & more · from 09/2001 · one of 5 types

Out of stock

One email when it is listed. Nothing else.

Free US shipping on orders over $75.00 · oversize quoted. Oversize items ship at a flat $49.99 each — free shipping does not cover them.

WARNING: Cancer and Reproductive Harm from exposure to lead — www.P65Warnings.ca.gov P65Warnings.ca.gov

Inspected and graded before it's listed · 30-day returns

Make sure this fits your car

Fits E46 318d, 318td, 320d, 320td 2001–04 — M47, M47N engines

Select your vehicle to check fitment
See all 16 fitting cars
CompactM47NAllAT91

Other types · 5 in all

Exchange primary catalytic converter – BMW diagram

Callout 01 on BMW’s drawing “DIESEL CATALYST”. Open the drawing →

Genuine BMW part 18 30 7 787 586: Exchange primary catalytic converter. You will find it under Exhaust (Suspension parts exhaust). It supersedes the older numbers 18 30 7 786 714 and 18 30 7 789 044, so a part carrying any of them is the same part.

Fits E46 318d, 318td, 320d and 320td (2001–2004), sedan, coupe, touring and compact, with the M47 or M47N engines.

BMW draws it on the Diesel Catalyst drawing. It weighs about 5.4 kg (12 lb).

Out of stock. Request it and we will notify you when it is in stock.

Details

EnginesM47, M47N
Weight5.37 kg

Used parts are inspected and graded: Good (minimal wear), Fair (normal wear) or Acceptable (visible wear). All fully working. Returns: 30 days if a part arrives damaged or not as described.

BMW has renumbered this part. All of these numbers are the same part.

  • 18 30 7 787 586currentOut of stock
  • 18 30 7 786 714replaced by 18 30 7 787 586
  • 18 30 7 789 044replaced by 18 30 7 787 586

The other parts on BMW’s drawing “DIESEL CATALYST”. Open the drawing →

#PartIn stockAction
--Vibration absorber setOut of stockRequest
01Exchange primary catalytic converter · this part5 numbers at this calloutOut of stock
02Exchange catalyst4 numbers at this calloutOut of stockRequest
03Hex nutOut of stockRequest
04Connecting supportOut of stockRequest
05Hex Bolt with washerOut of stockRequest
06StopperOut of stockRequest
07Clamping bushOut of stockRequest
08Hex BoltOut of stockRequest
09Hex nutOut of stockRequest
10Hex Bolt with washerOut of stockRequest
11Self-locking collar nutOut of stockRequest
12Hex Bolt with washer2 numbers at this calloutOut of stockRequest
13RodOut of stockRequest
14Holder catalytic converter near engine5 numbers at this calloutOut of stockRequest
15Oxygen sensorOut of stockRequest
16ClipOut of stockRequest
17Vibration absorber setOut of stockRequest
CompactM47NAllAT91

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InExhaustSuspension parts exhaust