Stock pulley was trashed - it had an OD of 6.5". This one is 7" but the belt rides deep in the groove so it's close enough. Problem is I had to use a 34" belt instead of the stock 33", and I'm about out of adjustment. If the belt stretches any more I'll have to figure out a plan B. Oh I got pretty good at pulling the motor with a come along and two tie down straps since I had to do it three times...