The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

Dead Parrot · 11-09-2022, 07:12 PM

IIRC - they are 3/8" pipe thread. If you damaged the one you got out, should be easy to find a replacement at a hardware/plumbing store. I think some older ones were 1/2" thread with a 3/8 square drive.

11-09-2022, 07:12 PM	#8
Dead Parrot Registered User Join Date: Aug 2012 Location: Oklahoma City, OK Posts: 2,663	Re: Coolant Drain Plug IIRC - they are 3/8" pipe thread. If you damaged the one you got out, should be easy to find a replacement at a hardware/plumbing store. I think some older ones were 1/2" thread with a 3/8 square drive.