Steve,
The actual number should read 1102003 as delco always had a 7 digit number except when you get back into the 1930s and they used the old 3 digit with a letter number system. That number is good for an early to mid 1950s buick. The larger pulley was typical of larger Chevy trucks and some older Massey tractors. The generator without the pulley and besides the number on it was actually just a typical generator used on Chevys in the 50s and early 60s with 6 cyl. applications. So what Im saying is you could take that generator and put a different pulley on it and it would work for many applications. Except for the tag of course. Its a 12 volt generator.
Hope this helps.
Ken
