Engine/Transmission (1994 - 1998) Radiator Drain Plug Question

[whiteknight]

I drained the coolant out tonight on my 1996 2500 and after filling it back up, it drips from the drain plug. It is completely closed. I opened it and closed it a couple times but still drips. It seems to slow the drip if I turn it toward open a little.



I was wondering if anyone knew if it could be repaired or am I going to have to replace the radiator. It seems to have a rubber ring or some thing in it to seal it. It doesn't turn as hard as it used to either. Any ideas?

 

[illflem]

The drain plug pulls out and there is a 25¢ o-ring on it that you need to replace. I always replace it at every coolant change, cheap insurance because to do it after a change you're going to have to drop your new coolant.

 

[whiteknight]

illflem,

Thanks a lot. That's what I wanted to know!

 

[Mike Ellis]

Bill,



Is there a part number for that ring?

 

[Andy Redmond]

Mike:



Mopar #'s



Drain cock 4592122, superceeds to 4644269



These two numbers may be for the inner/outer seals on the thermostat housing.



4761291

4797255





Any good Mopar man can get you the o-ring for the drain cock.



That's all the DC part numbers I could nab in a hurry. I know I've ordered some recently, but can't lay my hands on the invoice.



Good luck

Andy

 

[MDKram]

I just had the same problem with the slow drip after a coolant service. I pulled the drain cock out and there appears to be two locations for o-rings. The drain cock I removed had one o-ring on the inboard side only. Should there be two o-rings? Thanks in advance. Marc

 

[MCSloan]

When you reinstall the plug it helps to put some silicone grease on the "O" ring. Otherwise you may tear it and that is what causes them to leak.

 

[grtescpa]

Radiators

I wish they would bring back the good old brass radiators with the brass petcocks. They make such garbage today.

 

[MDKram]

All fixed. The o-ring I used was size F10 (or something like that) which translates to 9/16" I. D. , 3/4" O. D. , 3/32" Diameter. Marc