Injector Top O ring

Can I purchase the o ring on the top of the 6.0 injector, where the oil rail goes into the injector? Any sources? I need them asap. Thanks in advance.

Only place i have found them is on ebay. Guy ships pretty quick too.

http://www.thedieselstore.com/template/productOutput.php?partNum=APPAP0002&VehNum=

AP0002's...

and YES you can change the o-ring withour removing the collar... I have never been able to remove it, so I put the new o-ring in with the collar still in. Requires you to massage the new o-ring in a heavy oil like STP and work it in with a DULL pick.. Done thousands. good luck...

buy extras BTW

thanks got a set coming.