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Intake Plenum O-Ring Sizes

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  • Intake Plenum O-Ring Sizes

    Hello,

    Does anyone happen to know the size of the 4 o-rings between the plenum and the runners and the throttle bodies?

    I'd prefer not to be charged dealer prices for some simple o-rings

    I believe the part number is 13541307768
    If everything seems under control, then you're just not going fast enough...

  • #2
    Anyone have a size for these? Ive seen mention of people getting suitable o-rings from hardware stores, but no mention of a size.

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    • #3
      50mm I/d x 3mm

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      • #4
        Thanks!

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        • #5
          Is $4.69 each for something you will likely replace once every 10 (or more) years really worth fretting over?

          I don't know if this is the exact size, but this example from McMaster-Carr comes in packs of 25 for almost $11. Sure, you have all you could ever need, but you have no idea if they are the proper spec/tolerance/material needed for the S14. In addition, you will have to pay shipping, where you can pick the BMW parts up at your dealer.

          http://www.mcmaster.com/#9262k305/=13jx6rq
          Last edited by Brandon; 08-02-2016, 09:12 AM.
          Alles Beste!

          B. Wheaton
          1989 E30 M3, Owner since June 2000
          2008 E61 535xiT - The DD and work horse

          http://www.bayareamotorsport.com

          Register your E30 M3!
          http://www.bmwmregistry.com

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          • #6
            Im not really too worried about, I just didn't think the intake O-rings had to be anything all that special and not really into the idea of $5 each, lol.

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            • #7
              I use the McMaster Carr part that Brandon posted. Works well enough for me. Its an O Ring after all (and being that I am the caretaker of (5) S14 powered vehicles, the lifetime supply for $15 including shipping is pretty cool).

              Plus, my local dealer has not had a single E30 M3 or S14 part that I didn't order in stock in (2) decades, so anything I can get from McMaster Carr, delivered to my door, arriving the next day, when the order goes in anytime before 6:00 PM is a winner to me.
              Last edited by jimmy p.; 08-03-2016, 05:20 AM.
              jimmy p.
              87 E30 M3 Prodrive British Touring Car
              88 E30 M3 Zinnoberot - Street
              88 E30 M3 Lachsilber - Race (#98 SCCA SPU)
              92 E30 M Technic Cabrio - S14 POWERED!
              98 318Ti M44, Base - Morea Green
              04 Ford F350 - V10

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