A timing belt synchronizes the rotation of the crankshaft and camshaft(s) in an internal combustion engine, ensuring that the engine’s valves open and close at the correct times. Made from high-quality rubber with reinforced fibers, it prevents slippage and maintains precise timing. Used in various engines, it requires regular inspection and replacement, typically every 60,000 to 100,000 miles, to avoid engine damage. Timing belts are quieter and more efficient than timing chains, requiring less maintenance and easier replacement.