Farmall Cub

i picked up a 12 volt generator over the weekend thinking it was a late cub or 154 generator. it's yellow, has a larger pulley, a condensor hanging on the outside, and has open castings on the ends. not a starter generator for a cub cadet. my dad checked it out today, it works.
did the 154,184,185' s all use 12 volt generators or were they alternators?

i'm assuming the open ends are for better cooling for higher output ratings, but did the cubs use this style?

154s used a starter-generator. Has it still got the Delco tag with the part number?

Tag says 1102191 3L7 but the 7 is difficult to read. 12V.

Capaciter for radio suppression, probably. Dad reminded me of the AM radio/generator noise problems from the 60's.

Sometimes I get lucky on a generator number, sometimes not. I found this one listed as an optional 30 amp generator for the 151, 181 Thresher, 414, 420 SP Cotton Picker with BD-220, BD-264 engines.