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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 1 703 634

Rubber Ring

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

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Fits E36 320i–M3 & more 1990–98

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SedanM52AutomaticCB85
Rubber Ring – BMW diagram

Callout 17 on BMW’s drawing “Catalytic converter/front silencer”. Open the drawing →

Also shown on EXHAUST PIPE FRONT SILENCER, Catalytic converter/front silencer, CATALYST/LAMBDA PROBE and 1 more.

This is a genuine BMW rubber Ring, part number 18 30 1 703 634. You will find it under Exhaust (Suspension parts exhaust). It supersedes the older number 18 21 1 723 646, so a part carrying that number is the same part.

Fits E36 320i, 323i, 325i, 328i and M3 (1992–1999), sedan, coupe, convertible and touring, with the M50, M52, S50 or S52 engines.

BMW draws it on 5 drawings, among them Catalytic converter/front silencer and Exhaust Pipe Front Silencer. BMW's catalog calls for two of these at each place it is fitted. It weighs about 33 g (under 0.1 lb).

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

Details

EnginesM50, M52, S50, S52
Weight0.03 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 1 703 634currentOut of stock
  • 18 21 1 723 646replaced by 18 30 1 703 634

The other parts on BMW’s drawing “Catalytic converter/front silencer”. Open the drawing →

#PartIn stockAction
--Hex nut3 numbers at this calloutOut of stockRequest
01Exchange exhaust pipe catalyst5 numbers at this calloutOut of stockRequest
02Hex nutOut of stockRequest
03Gasket Asbestos FreeOut of stockRequest
04Bracket5 numbers at this calloutOut of stockRequest
05Wave washerOut of stockRequest
06Hex BoltOut of stockRequest
07Exhaust support3 numbers at this calloutOut of stockRequest
08Hex Bolt2 numbers at this calloutOut of stockRequest
09Joint bushingOut of stockRequest
10Washer2 numbers at this calloutOut of stockRequest
11Self-locking hex nutOut of stockRequest
12Clamp3 numbers at this calloutOut of stockRequest
13Hex BoltOut of stockRequest
14Self-locking hex nutOut of stockRequest
15Hex BoltOut of stockRequest
16Hex Bolt3 numbers at this calloutOut of stockRequest
17Rubber Ring · this partOut of stock
18Hex BoltOut of stockRequest
19BracketOut of stockRequest
20FlangeOut of stockRequest
21Gasket ring asbesto-free2 numbers at this calloutOut of stockRequest
22Gasket ringOut of stockRequest
23Hex Bolt2 numbers at this calloutOut of stockRequest
24Hex nut2 numbers at this calloutOut of stockRequest
25Oxygen sensor3 numbers at this calloutOut of stockRequest
26Lambda-probe bracketOut of stockRequest
27Cable holderOut of stockRequest
28Cable holderOut of stockRequest
SedanM52AutomaticCB85

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InExhaustSuspension parts exhaust