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Old 09-01-2018, 04:56 PM   #11
AussieinNC
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Join Date: Jun 2017
Location: Cherryville, NC
Posts: 2,162
Re: trans fluid to radiator fitting

I just checked Earls Tech Site...

Those fittings are 6 AN meaning they are 9/16" 18 TPI

Not 1/2" 20 TPI ( which is technically 5 AN thread size...)

Radiator needs 1/2" 20....The Grainger fitting I listed is the one I use all the time

(BTW...these 1/2" 20 are a very common size in the hydraulic industry)

Check out the Grainger listing specs..

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