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Vacuum pump seal
Old 04-25-2002, 11:37 AM   #1 (permalink)
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mwilson's Avatar
Join Date: Jan 2002
Location: Lincoln, Maine
Posts: 307
Unhappy Vacuum pump seal

Just want all you TDR guys to know that I'm not going to take this vacuum pump seal thing lying down. I am just locking up over the fact that there is no part number for the pesky seal and o-ring on back of pump. I know from previous posts that the dimensions for the seal are in here and will use that method shortly to fix mine as is starting to leak worse.
I want to add some information that I found out yesterday as I am going to get these numbers if it takes me two months to do it. Got into Cummins on-line at work and found the Cummins part number for pump is 3925102. (By the way,P/S pump has Cummins part number of 3925103 just in case another source is needed.) In notes regarding this 3925102 pump,it shows the manufacturer as Wabco! Wee Ha, We are also dealer for Meritor/Rockwell who bought Wabco back along. Started calling tech lines as day went on and finally got Wabco's origional tech department. They called me just before quitting time and said they can not break it down. I strongly urged her to talk to whoever and get me those numbers from whatever contracter that built it and release these as there is a market. I will continue to pester them for an answer. By the way the part number from Wabco is 914-003-003-0. Maybe someone else has a way in.
I will continue to work on this and post if I can find out more. I know there are a lot of you interested in this and will do my best to get some good numbers. I get a lot from these forums and would like to give something back.
Mike
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