This comprehensive kit is comprised of high-quality parts, and includes new ContiTech timing and Gates balance shaft belts, as well as all of the associated rollers. Also included are a new water pump, thermostat, secondary thermostat, and all of the seals needed to install them. A gallon of genuine Porsche unmixed coolant (mix 50/50 with distilled water for two total gallons) is also included to make your service complete with just one order.