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Fitting size for Walbro pumps 255

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Old 06-20-2008, 01:30 PM
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Default Fitting size for Walbro pumps 255

Getting my fuel system list together and am wondering what size the fittings are for the Pumps, figure they are 3/8 female NPT. Can anyone verify this? Can find it anywhere.
Old 06-20-2008, 09:30 PM
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Duane,

They are not NPT, they are metric! Inlet Fitting: M10 x 1.0 internal threads
Outlet Fitting: M10 x 1.0 internal threads. Summit or other sponsors sell the correct fitting.

Jack
Old 06-20-2008, 11:00 PM
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Originally Posted by babydeuce
Duane,

They are not NPT, they are metric! Inlet Fitting: M10 x 1.0 internal threads
Outlet Fitting: M10 x 1.0 internal threads. Summit or other sponsors sell the correct fitting.

Jack

WTF, metric! Thanks Jack
Old 06-21-2008, 03:04 AM
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Yeah, stumped me too....Summit has half of my income from this last year just in fittings and hoses..

Jack
Old 06-21-2008, 11:10 AM
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Originally Posted by babydeuce
Yeah, stumped me too....Summit has half of my income from this last year just in fittings and hoses..

Jack

Probably another fitting that is only sold in blue/red. I wanted to do the black fittings but russel only makes them quick connects in blue. Oh well, I'll just use a rattle can and make em black.
Old 06-21-2008, 12:28 PM
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I hear ya, I went black as well. All my blue fittings at the pump are hidden up under the rear frame rail on the passengers side. You would have to crawl up under the car to see them. I went with the black summit brand fittings, and have had zero issues.

Jack
Old 06-21-2008, 05:02 PM
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Found out Russell does make the quick connects in black, cool. PN 640853 and 640863. Now I just gotta find the metric adaptors in black.



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