Radiator drain plug problem

Trying to do my fluids, I drain radiator via the plug, after the drains complete I put plug back in it’s spot no big deal.. until my new fluid is leaking right out as if the plugs not in there. Easy enough fix. Except the replacement plug I purchased is not the right one, and nowhere can I find a photo of what a oem drain plug should look like, at the point I’m thinking maybe I have an aftermarket radiator. Any help is appreciated can add pictures but the old drain plug doesn’t seem damaged.

 

There should be an o-ring on that plug.....just got to find right size and thickness...
liberally put silicone lube(spark plug boot grease) on the o-ring and put back on plug.....
most likely yours has a break/tear...or gone...


Or do what I do silicone(rtv) the plug permanently shut and drain by dropping lower hose....

 

It does happen, there aren't replacements unfortunately, it may be aftermarket.

You could try to teflon tape the threads, or drain it dry and use JB weld to ensure it never leaks.

 

I am in the process of replacing the radiator in one of my 1995.5 trucks. Here is a pic of the OEM drain plug. Is it possible that the oring was missing off of the plug in yours?

 

Can always tap and thread a brass plug fitting on...but you need the right tap.

 

It was the o ring, when I removed the screw the o ring got pushed into the bucket without my knowledge, and it’s definitely an aftermarket radiator. Thank yall

 

26768739, member: 387297"]Trying to do my fluids, I drain radiator via the plug, after the drains complete I put plug back in it’s spot no big deal.. until my new fluid is leaking right out as if the plugs not in there. Easy enough fix. Except the replacement plug I purchased is not the right one, and nowhere can I find a photo of what a oem drain plug should look like, at the point I’m thinking maybe I have an aftermarket radiator. Any help is appreciated can add pictures but the old drain plug doesn’t seem damaged.[/QUOTE]

 

[/QUOTE]
I'd just find a stainless steel bolt and o-ring the right size... Radiators aren't forever anyway

 

I have the same issues and I'm guessing we have the same drain plug, I did not realize when I removed mine is that there was a rubber washer on the second part , I saw only once on the internet the washer for that plug but can't seem to find it now. I don't want to use any flat washer bc I know it has to withstand the heat of the radiator. Toyota I brought mine and can order another for 25 bucks. I may end up doing that since I can't find that particular plug at any other stores or on the internet, so basically I bet your washer fell off just like mine.

 

sad to hear it so difficult to find plug.
mine was leaking .. maybe i tightened too hard. i could see the oring was damaged
i went to hardware store Ace hardware in my case they seem to sometimes have more in the oring and nuts and bolts than home depot .. the guy working there didnt know squat he was ready to give up. but i kept opening drawers
and found one
i used a 7/16" OD X 1/4 "ID
# 78 at there oring kiosk

so far no leaks

it fits my sons 2014 tacoma

 

https://www.tacomaworld.com/threads/sticky-radiator-drain-valve.765117/