How old does a timing belt need to be before replacement?

So my timing belt and water pump were replaced March 19, 2012 but the belt only has 16,250 miles on it. Manual says six years or 90k I’m thinking. What do you guys think? Should I go ahead and replace it to be safe? I’ve read on here about an eBay seller who sells the whole group of parts, all are Aisin or Toyota

 

Always your call it does not hurt to inspect the timing belt.

The Top belt cover can be removed easy.

My Original timing belt is now at 250,000 miles. At this time more critical areas need addressed .

The parts all sit on the shelf.

Ebay aircabinman is the go to for timing belt kits i bought a few over the years.

All my 3.4 swaps get one.

 

The best time to replace the timing belt is right before it breaks

 

Agree, aircabinman on eBay is legit and OEM/ Aisin.
11 years is pretty long on a T belt, but it also depends on how the truck has been stored…
Climate controlled garage- Probably not a big deal being that old.
Outside in very cold and very hot temperature variations- probably needs to be replaced.

 

I keep it in the garage now but first owner kept it outside. Might be best to replace it