Jacobs vacuum pump...

[MMeier]

... seems mine took a dump today, sounds like a ricer with a bad case of rod knock !! Needless to say brake no longer operates, :{ need to find one NOW!!!! Any of you know the part#, if so, best to go to Cummins or that other forsaken place? Pulling 48' high cube containers and NEED my brake ASAP! TIA guys.

 

[artie]

Here is the Cummins part number from the parts doc on Jacob WEB site

3965925 vacuum pump.

 

[MMeier]

Thanks artie!!! Anyone ever rebuild one of these puppies?