maxx250

Is there a gasket between the vacume pump and the timing case?Im assuming there is ,and was wondering if anyone here would happen to know what the part # is for said gasket. Thanks in advance

Trebor

I have one that has 3008400 & WEK stamped into it. Cummins manual gives it as 3919601 Both are probably out dated but should provide a starting cross reference point.

RamW350 dually

Just this past weekend I had to replace my long awaited bad power steering pump, meaning that the vacuum/power steering pump had to come off as an assembly. Ahead of time I ordered the exact vacuum pump to timing cover gasket you are needing from Cummins. I work at a Freightliner dealership and had a reliable parts guy there order me the gasket from Cummins. That exact part # is 3938655 and I had no problems with it not fitting when I went to reinstall the vacuum pump and new remanufactured power steering pump mounted on the back of it. Cleaned the back side of the timing cover mating surface up, front face of the vacuum pump mating surface, applied a coating of spray adhesive to the front of vacuum pump, and installed gasket as spot on accurate as I could as far as lining up the two mounting bolt holes with gasket. The above part # should be good to go for you. Good luck.

Salvy

Trebor

I think either Cummins issues a new part number every time they have a price change or somebody working at Cummins maintains their job by constantly issuing or revising part numbers.

maxx250

Thanks for the info guys its much appreciated