It's routine maintenance. My car is required to have its timing belt replaced by 100,000 miles. If the dealer does the work, the manufacturer provides a warrant

It's routine maintenance. My car is required to have its timing belt replaced by 100,000 miles. If the dealer does the work, the manufacturer provides a warranty on the parts. Since a broken belt could destroy the engine, this is a replacement that should be done and it's nice to have the warranty.