Part number for correct rubber boot

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linke30
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Post Mon Feb 10, 2020 7:14 pm

Hi
Another question regarding a m20b25 (told1990) swap into m20b20 1990 cab.
I’ve got a 325 air box. My rubber boot fits the new air box but not the throttle body.
I know there are quite a few variants of the boot and struggling to find the correct one.
Not sure how to proceed.
Any help greatly appreciated
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BenHar
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Post Mon Feb 10, 2020 7:47 pm

Try searching on here: https://www.realoem.com/bmw/select.do

Ben
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Brianmoooore
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Post Tue Feb 11, 2020 7:17 pm

Is your idle control valve 'T' shaped or 'L' shaped?
Does the right hand side of the throttle body have two brake servo hose sized connections or just one?
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linke30
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Post Tue Feb 11, 2020 8:02 pm

Hi Brian
The icv is t shaped and I have one sevo pipe.
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Brianmoooore
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Post Tue Feb 11, 2020 8:11 pm

In that case, I think the hose you require is 13 71 1 726 325, but I'm not 100% certain. It will be usable though, even if you have to block one of the branches.
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Brianmoooore
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Post Tue Feb 11, 2020 8:18 pm

Just done a google search for a pic. of that part number, which confirms that it's correct. Also checked the other one it could have been, and can clearly see that version is for the two pipe servo.
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linke30
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Post Tue Feb 11, 2020 8:54 pm

Thank you so much!
Ordered one!