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Old 09-30-2017, 07:03 PM   #1
Exodus

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Cummins dealer / 12 valve question

Guys, I'm trying to buy a P7100 injection snout O-ring that seals against the case. The first seal came in a plastic bag with the part number written by hand. It was not the right seal. They reordered, next bag came in, had written part number on the bag, and the seal doesn't look the same as the one I pulled off. Mine is a square cut seal. Unless there's been an update, the seal I just bought won't work, it's a fully rounded O-ring seal.

I started to get a little hot in the store, as this is the second time i've had to come in. I asked them....when I order a genuine cummins seal, I expect it to come in a bag or box with the part number on it and unopened. They told me they can't always get parts from cummins like that. I said, how do I know if i'm buying the right part and if it's genuine? No response, they brushed it off.

Can anyone verify if part number 3969698 has been updated to a completely rounded seal? And the square cut seal is no longer required.

Thanks guys.
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Old 09-30-2017, 08:28 PM   #2
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You might just can find what you need here?
McMaster-Carr
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Old 09-30-2017, 09:25 PM   #3
Exodus

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Originally Posted by TrailTamer View Post
You might just can find what you need here?
McMaster-Carr
, no. That's what this cummins dealer used. I'm willing to spend the money for genuine parts that fit perfect the first time.
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Old 09-30-2017, 10:45 PM   #4
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PM Snedge
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Old 10-01-2017, 06:00 PM   #5
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Originally Posted by bigstacks95 View Post
PM Snedge
The only way to go.
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Why in God's name would ANYBODY want to take something with that collection of gizmos, wheelies, belts, string, plastic and obvious fall-offs out of the sight of land?
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Old 10-01-2017, 09:14 PM   #6
95cummins5.9
 
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I have one here somewhere
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Old 10-01-2017, 09:16 PM   #7
95cummins5.9
 
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Yep it's a round seal
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File Type: jpg 15069068826281695585074.jpg (211.3 KB, 0 views)
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Old 10-01-2017, 09:52 PM   #8
Exodus

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Thank you for that. Funny it says rectangular ring on it.
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Old 10-02-2017, 11:17 AM   #9
GAmes

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My original was round, the replacement is round and the spare I have in my timing kit is round. Yours being square cut ??????
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Old 10-02-2017, 11:48 AM   #10
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They are round for sure.

Last edited by Snedge; 10-02-2017 at 11:49 AM.
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Old 10-02-2017, 03:40 PM   #11
Exodus

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Thanks everyone for putting this to bed for me. Pump will go on in the next day or so.
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Old 10-02-2017, 03:47 PM   #12
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Why does anyone buy Cummins parts from anyone but Snedge???
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Old 10-02-2017, 07:45 PM   #13
Exodus

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Quote:
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Why does anyone buy Cummins parts from anyone but Snedge???
I would if I lived in the USA.
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Old 10-02-2017, 09:32 PM   #14
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I would if I lived in the USA.
Okay, that would be a good reason.
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1977 F250 "High Boy" 12 valve, 180 pump, 5x.014 injectors, 47RH, NP241, 2007 F250 axles....swap in progress

1995 Dodge 2500 4x4 47RH SCLB
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