There are several components that manufacturers recommend be replaced at the time of replacing your timing belt.
These parts are called hardware parts. Hardware parts include but are not limited to, depending on manufacturer, the tensioner, the water pump, and the idler pulley (or pulleys). These parts have been running just as long as the timing belt and under the same extreme conditions.
The cost of replacing timing belt hardware parts is negligible compared to the labor and certainly to the cost if the component fails after you have replaced the timing belt. Most vehicle manufacturers claim that if the timing belt hardware parts are not replaced at the same time as the timing belt then the newly installed timing belt's life can be reduced by as much as 50%.
Professional Auto Care
Professional Auto Care is an award-winning family owned and operated auto repair shop located in southwest Houston. It has been run by the same family, the Serratos Family, for nearly 35 years. Professional Auto Care services Domestic, Asian as well as select European vehicles. We are known for our professionalism, transparency and quality of work. Since our humble beginning in 1983, we always strove to provide the best, most reliable service in Houston with a hint of the personal touch. The founders, Everardo and Claudia Serratos, are still involved with the daily operations of the car maintenance and auto repair shop.