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Old 12-01-2019, 07:43 AM   #9
454cid
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Join Date: May 2019
Posts: 394
Default Re: Need screw in fitting for water heater hose, dr. side

Quote:
Originally Posted by fetchitfido View Post
...Pipe thread tends to be a narrow measure for a given size while straight/compression thread tends to be normal/wide measure.
Pipe sizes are inside diameter. I'd guess it would be 1/2 pipe thread, for a 5/8" hose barb, which seems a bit big for a little 1.9L engine, to me. 1/2" thread is what the V8's use for both the 5/8" and 3/4" lines.

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2000 SL2 Automatic (back on the road) 17X,XXX miles.
1999 Chevy K3500

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