How many miles before replacing timing chain? on 2003 Jeep Liberty

I am about to replace water pump and planning to replace belts and tension pulleys but when is time to do timing chain?

Asked by for the 2003 Jeep Liberty
is it noisey right now?
no, I just thought it was like timing belts that go together with water pump.
1 more answer , 1 more comment
You can usually get at least 120000miles on a timing chain or more. That is why you don't see a scheduled replacement for them. Some will last the lifetime of the engine.