Does the 2015 Toyota Tundra have a timing belt or chain?

The 2015 Toyota Tundra5.7 liter engine comes equipped with a timing chain instead of a timing belt. The chain is designed to last the life of the vehicle, and as a metal part, by default, is more durable. Also because it operates from inside rather than outside the engine, it doesn't suffer from cracking or drying out like belts do. They can improve fuel economy as well. Most belts need replacing between 60,000-100,000 miles. The Tundra's timing chain should remain maintenance free. Occasionally they break or tensioners stretch, which can have catastrophic results for the engine. If You're finding metal shavings in the oil, experiencing mIS Fires or hearing a rattling noise while idling, make sure to get those issues checked out by a reliable repair shop.