NAME THAT TRACTOR ENGINE???

[Anonymous-0]

I recently purchased an old saw mill that has this old tractor engine for power. It is an International Harvester 4 cylinder OHV gas engine. Not being a "tractor guy", I'm having trouble identifying it, although I was able to get an ignition rotor and cap at the local auto parts store by using numbers off the magneto. I can email a picture. CAN ANYONE HELP ME ID WHAT IH MODEL TRACTOR THIS IS?
I need to find a starter motor for it. Respectfully,

 

[wayne2]

LOOK for # # # # #'s And send pic's.

 

[Anonymous-0]

OK, I figured how to post pictures to the Help Identify section of this site. The ONLY numbers I find on the engine are:
UBKM 4341
6943 DH
The name plate on the front is International, but it looks a lot like a Farmall... Thanks,

 

[Yugrotcart]

Looks like a U4 power unit, same engine as the Farmall H.

Paul

 

[John M]

U6 power unit, same engine as an M.

 

[Tramway Guy]

U9 Power unit, same engine as International W9...
...
...
Just kidding...thought I'd throw another one in the mix.
Should be a metal nameplate on it somewhere.

 

[John M]

BKM is part of the prefix for 6 series engine, FBKM - M, WBKM, OBKM, IBKM - 6 seires tractors, UBKM Power Unit.