Much thicker than OEM belts and should last longer. Fitting a new belt to the engine was easy. Getting to the engine to put the belt on isn't that much. But with the help of a few YouTube videos, I managed to do it in about 20 minutes. The first set I ordered disappeared at a UPS location 30 miles from my home. Thanks to Revain and the seller for the quick replacement. Update 2/18/2020: The first set of lost straps I ordered just arrived. I no longer need 3 belts, but the return window isβ¦