Concept One's overdrive technology increases water flow and electrical charging at idle and slow speeds. Comprised of a crank pulley, a water pump pulley, an air conditioner compressor main bracket, serpentine belt tensioner, serpentine belt tensioner mounting bracket, water pump O-rings, water pump mounting studs, hex standoff nuts, and assorted mounting hardware.
Pulley System Install - Engine Spinnin' Spools - Tech