Crank seal tool

[Brock]

I've got a oil leak up front and can't quite tell where from but I'd like to be prepared to be pulling apart the front structure. A mechanic told me you need a cam seal tool just to get the front cover off, not even the structure.

Problem is I'm having trouble tracking down the part number for the puller/install tool. I've come up with a part number but Cummins has come up with two others and say they actually aren't sure.

Thanks guys.