Toyota 4Runner Timing Belt Or Timing Chain (1984 - 2021)

The 1984 to 2021 model years of the Toyota 4Runner has both timing belts and timing chains. It has also had both interference and non-interference engines.

A combustion engine relies on either a timing belt or timing chain to maintain the proper timing and distance between its pistons and the intake valves and exhaust valves in the combustion chamber.

An old or damaged timing belt is prone to failure, which could lead to catastrophic engine damage and an expensive repair bill. A timing chain is less prone to failure but should still be inspected by a licensed mechanic once the engine has 60,000 or more miles.

It is generally recommended to change the timing belt starting at 60,000 miles, whereas a timing chain is usually good for the life of the vehicle.

Scroll down for the timing belt data for your particular Toyota 4Runner.