Old Mar 18, 2015 | 03:08 PM
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dinasrt
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Joined: Apr 2010
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From: Mendocino, CA
Default Re: Stock heat exchanger fitting/nipple size?

I just measured the O.E.M. H/E; it is 19mm O.D. & 14mm I.D. (3/4" & 9/16")
 
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