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Engine block drain plug ?

Posted: Sat Oct 28, 2023 4:54 pm
by alfie austin
Hello,
Can some one tell me the size and thread of the engine block coolant drain plug ?
Kind regards.

Re: Engine block drain plug ?

Posted: Sat Oct 28, 2023 5:12 pm
by philthehill
1/2" x 20 TPI UNF. Parallel threads.