Here are Dimensions of the mounting points for Kubota B series Buckets. The goal of this list is to help see what newer style Bucket may be compatible with older loaders. The list will be updated as I get more information. If you would like to participate in...
The original early model kubota b7100 had a 3 wire dynamo. One wire went straight to the brown wire (AC lead) of the regulator and the other 2 went to the light switch (yellow and white) then from the light switch via red wire to the other AC lead of the regulator....
This chart shows wheel information for most B series including bolt pattern, pilot hole size and stud size. It’s very useful to compare what other models have the same size as what your looking for.