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Old 11-27-2020, 04:07 PM   #1
Thealien
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Intake manifold Brake booster plug

I will be installing a hydratech hydroboost brake set up in my Blazer. Because of this I need to plug the hole where the brake booster got its vacuum. Trucks with factory hydroboost have the plug in that location. I do not want to put a bolt in a hose!

Does anyone have the GM part number for that plug?

It will look like this but it is solid instead of hollow.

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Old 11-27-2020, 05:03 PM   #2
ls1nova71
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Re: Intake manifold Brake booster plug

Years ago I tried to find the part number for that plug and never did find one for it. The part its self doesn't have a number cast into it either. But if you send me your address I'll send you this one.
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Old 11-27-2020, 06:35 PM   #3
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Re: Intake manifold Brake booster plug

Information sent. Thank you so much!
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Old 11-27-2020, 07:42 PM   #4
geezer#99
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Re: Intake manifold Brake booster plug

Can’t you find and use a vacuum cap on the original fitting?
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Old 11-27-2020, 09:47 PM   #5
Thealien
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Re: Intake manifold Brake booster plug

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Originally Posted by geezer#99 View Post
Canít you find and use a vacuum cap on the original fitting?
You could but why when they make the correct part?
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Old 12-01-2020, 06:02 PM   #6
beaterku
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Re: Intake manifold Brake booster plug

AC Delco #12559760. This is the part number for the nipple.

Edit: I see that you are looking for the part number for the plug. Looks like ICT billet make a billet plug that you could use. I have a couple around somewhere, but I cleaned and not I can't find anything lol
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Old 12-02-2020, 10:11 PM   #7
StingRay
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Re: Intake manifold Brake booster plug

I have a bag full of those plugs.
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Old 12-02-2020, 11:02 PM   #8
gmc684x4
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Re: Intake manifold Brake booster plug

Do you have a part number ?
I have been looking as well
I can find lots of vacuum booster nipples no vacuum plug numbers
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Old 12-03-2020, 06:59 AM   #9
Thealien
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Re: Intake manifold Brake booster plug

Quote:
Originally Posted by StingRay View Post
I have a bag full of those plugs.
You wouldn't happen to have a part number for that bag full of them?
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Old 12-03-2020, 10:44 PM   #10
ls1nova71
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Re: Intake manifold Brake booster plug

Quote:
Originally Posted by Thealien View Post
You wouldn't happen to have a part number for that bag full of them?
Did you not get the one I sent you?
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Old 12-04-2020, 04:06 AM   #11
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Re: Intake manifold Brake booster plug

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Originally Posted by ls1nova71 View Post
Did you not get the one I sent you?
No sir. But the part number may help others?
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Old 12-04-2020, 09:26 AM   #12
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Re: Intake manifold Brake booster plug

I sent it out Monday morning. I'll have to find the receipt from the PO to see what happened to it.
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Old 12-06-2020, 11:38 AM   #13
solidaxel
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Re: Intake manifold Brake booster plug

The luck I am having finding this plug is not working!

I had a vacuum cap on that port but the engine hiccupped and it took a long time to find the problem......... it blew the cap off, so I need a bag of the RIGHT plugs as I have 3 engines not using this port


Thanks
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