The OEM Craftsman motor gave up the ghost in the most stupid fashion, the shaft bent from snugging up the drive belt. Humming began, then intermittent start. Then finally, no start. Hum. Hmm. Took the thing apart and saw the commutator rubbing on the armature or whatever the guts are called.This is the PERFECT FIT and at 1.5 HP, I also bought the steel pulley for 5/8 shaft. That pulley is found here on Amazon. It is steel, has two set screws, and it comes with the square key stock, not a real 'woodruff key' since those have a curved side. That pulley is perfect too for this motor.Exact mount. Perfect.You will need a power cord so buy a new one, 14 gauge triple with the grounded plug 'for tools'. Then you will need a cord clamp / sheath cable connector with the screws so you can mount the cord and anchor it through the knock-outs on the motor's connection box. You will also need two wire nuts and a terminal -- spade type -- for the ground. Get yourself a new belt too. My saw's replacement belt is a Gates PoweRated 6841 / Industry Number 4l410K (1/2" x 41") = 12.5 to 13 mm x 1040 mmTHIS HAS EASY TO READ WIRING INSTRUCTIONS on a double-sided, card stock, color printed document with all the models of single and three phase motors. You will easily be able to wire for 120 VAC or 230 VAC. Just read and take your time. If you're an old goat, put on your glasses.Only been running it a few days and if anything comes up, an update to the review will be posted.