The ACDelco Professional, premium aftermarket Timing Component Kit with Water Pump provides a total solution for most applications, including belts, idler(s), tensioners, and supporting hardware with detailed installation instructions, and the addition of a water pump. Timing belt driven water pumps should always be replaced when the timing belt is replaced, and this kit provides great convenience and the ease of part sourcing. This timing component kit with water pump meets the performance standards you would expect from ACDelco.