The complete motor is 6B9157, is the one pictured yours ? if so rebuilding might be an option, also the motor and bendix assembly, not including the nose cone (9B8857), were used on many different Caterpillar units and other brands, John Deere etc. so one option is to put your nose cone on the motor from another application that might be more available.
"i reject your reality and substitute my own" - adam savage. i suspect my final words maybe "well shit, that didnt work"
instead of perfection some times we just have to accept practicality
Yes it is mine. I was hoping that I could buy another starter to have as a spare. From what I have gleaned it is a 6 volt starter that uses a set bolt to anchor it. That is how mine is attached. Counterclockwise rotation.
The only real difference between the starters for the D7, D2-4, and others is where the nose cone is clocked on the motor, could be pretty easily modified by a machinist.