Air Intake Connector "o-ring"

[CDegner]

Replaced my turbo housing weekend before last. I took it out to make the switch. While reinstalling, It appears that the oring that goes between the cold side turbo outlet and the elbow that heads up front to the intercooler is flattened out too much to effect a good seal.



Headed over to my local cummins supplier that promptly gave me the wrong o-ring (my fault - I gave him what I thought was the correct part #). Went back to try to get the correct one. Only way we found the correct one was by getting the elbow part # and running it. The price just went from $4 to $17. Turns out mine is some type of rectangular cross section o-ring. They are trying to get it from the cummins factory. 8 days and no luck.



Stopped off at the dealer to see if by some chance they could come up with one. DC no longer supplies that part and there is not a dealer on their computer system that has one.



If Cummins can't come through for me, this will bite! I do not really want to start using RTV to make seals but I might have too.



Any one else have any ideas?



Carl

 

[BushWakr - RIP]

Yes, call PDR. I'm certain that they replaced one exactly like that in the last week or two.



It is not a true circular O-Ring. It is rectangular cut. They do squash after lengthy use. And now that I think about it. I wonder if any of us other guys may have a couple of deteriorating seals like that one... hmmmmm... more to do on the weekend I guess.



Bob.

 

[jbolt]

What is the part number?



Jay

 

[Case500D]

FYI

Carl,



When I changed exhaust housings the square ring that came out looked like a piece of over cooked bacon. My local Cummins shope just gave me a normal o-ring. So far it has worked for 15K and held up to 24 psi of boost. I will have to look into the square ring.



Jeremy

 

[CDegner]

Part #

Jay,

The part number for the o-ring they gave me (orange and round) is 3883284.



The part number that should be in (rectangular cross section) is 3919852.



I may give the round one a try just to see if it works. Sounds like a phone call to PDR is in order as well.

Carl

 

[jbolt]

FWIW www.reliablegoods.com shows 50 (3919852) in stock @ $12. 96



Jay

 

[CDegner]

Jay,

Thanks for the link. I was unaware of that site. I got a call that the one I had ordered arrived today. Their shop loaned me the tools to install right on the spot.



Thanks!

Carl