Your right of course......I set asside each pulley as it came off and installed new ones that came in the kit with new hardware. The tensioner pulley did have the washer installed on it. Also there was an instruction sheet that was very clear as to which pulleys got what and as to the torque. I examined the old belt yesterday and it had slight wear on the rubbing edge but that was it. My plan is to monitor the belt condition over time(pulling the covers every 2-3 months)