It uses the standard six bolt pattern and includes mounting hardware. This drive works with most of the industries drive pulleys as it uses a 1.00" shaft with a .125" key and a guide to help the two belts from rubbing one another.
It also includes a pulley washer that will help guide the belt once it is installed in the front. Made from billet alum. and has been machined from the backside to keep rotating weight down.