1312100400 is a 7.5hp motor that is most commonly used with the Chicago Pneumatic RCPC-7581V reciprocating air compressor. This is an OEM motor that was manufactured by Baldor. This was used on Chicago Pneumatic, BelAir and NAPA reciprocating air compressors.
This motor does not come with a pulley. You will need to remove the pulley from your old motor and install on this motor.
This motor was used on the following Chicago Pneumatic compressors
This motor was used on the following Belair compressors