What is this and where does it go ???
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Senior Member
Joined: Apr 2009
Posts: 2,358
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From: Kingsport Tn.
What is this and where does it go ???
Cleaning the engine today and found this beside the battery on the side toward the front of the car .
it wasn't there before so im not sure where it came from ,,,It looks like some kind of vent...
it wasn't there before so im not sure where it came from ,,,It looks like some kind of vent...
Senior Member
Joined: Apr 2006
Posts: 25,432
Likes: 648
From: Ontario
Re: What is this and where does it go ???
Originally Posted by hcarter
THANKS ! I learn something new everyday 
It fits in the hole in the top of the front face of your battery, its a vent hole. They will also have a vent hole in the rear face as well.
When you dump your OEM battery take out the plug in the rear hole and the vent trap shown above and install them in your new battery. If you have these vent holes you should use them. If you have seen corrosion around and on your battery tray these should prevent it in future. Any vented acid is trapped in this gadget and evaporates.