If you make the mistake of pulling your vehicle into the mechanic's bay at your local auto dealership, then you probably won't be able to drive away without first taking out a second mortgage on your home to pay for the repairs. For regular maintenance, like replacing a timing belt idler pulley, your best bet is to do the work yourself. And, for the absolute lowest price in town for a new timing belt idler pulley, turn to AutoAnything. Your order comes with a 1-year lower-price guarantee and free shipping.