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Old 10-31-2016, 01:37 AM   #1
rod1701
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Fuel pump fitting

Converting from electric back to mechanical but having a heck of a time finding the correct size fitting for the outlet. Anyone know correct size?
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Old 10-31-2016, 10:29 AM   #2
LockDoc
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Re: Fuel pump fitting

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Originally Posted by rod1701 View Post
Converting from electric back to mechanical but having a heck of a time finding the correct size fitting for the outlet. Anyone know correct size?

Depending on which pump you have it could be 1/8" NPT, 1/4" NPT, 1/4" flare, or maybe even 3/8" flare....

NPT= National Pipe Thread.

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Old 10-31-2016, 10:56 AM   #3
rod1701
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Quote:
Originally Posted by LockDoc View Post
Depending on which pump you have it could be 1/8" NPT, 1/4" NPT, 1/4" flare, or maybe even 3/8" flare....

NPT= National Pipe Thread.

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5/16" ever so slightly too big. 3/8" way small
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Old 10-31-2016, 12:14 PM   #4
geezer#99
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Re: Fuel pump fitting

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Originally Posted by rod1701 View Post
5/16" ever so slightly too big. 3/8" way small
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I think you got that backwards!!
Are you looking for the flare fitting or the adaptor to the pump?

Take the pump to the auto parts store and match up a fitting.
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Old 10-31-2016, 01:54 PM   #5
greasemonkey
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Re: Fuel pump fitting

5/8"-18 inverted flare nut for a 3/8" line, would be my guess.
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Old 10-31-2016, 02:11 PM   #6
ck5566
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Re: Fuel pump fitting

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Originally Posted by greasemonkey View Post
5/8"-18 inverted flare nut for a 3/8" line, would be my guess.
2X's what he said. Also that one worked for me/mine
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Old 10-31-2016, 02:14 PM   #7
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Re: Fuel pump fitting

Find a parts truck (Wrecking Yard) and work from there!
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Old 10-31-2016, 02:54 PM   #8
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Re: Fuel pump fitting

Just went through this exercise, as mentioned the 5/8 inverted flare to the pump side. I went to a braided line so used that adapter to -6AN
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