Serpentine Belt Lifespan

I did a search and couldn't find an answer to this.

How many miles have you been able to get out of a serpentine belt? I think mine has around 100K on it and still looks fine and doesn't make any noise but I'm wondering if I'm on borrowed time.

 

Sounds like you should just do it. Then keep the old one as a spare in the truck somewhere.

 

I'm not a very skilled mechanic. I've watched a few videos and it looks miserable. There isn't a ton of room to work in there. If I do it, I'm going to remove the radiator to free up space and replace that too. I'm just curious how much time I have.

 

On my 2006DC - 150k+ miles and 11 years. Never changed it.
Probably should have at 100k, as I understand it can cause serious engine damage if it breaks underway.

 

If you don’t feel confident maybe just pay someone else to do it. Sounds like a lot of work to take out the radiator just to change the accessory belt. And you really don’t need to.

You must be talking about the timing belt which is much more involved than a serpentine accessory belt. The timing belt is supposed to be changed every 90,000. The serpentine belt is the outer accessory belt that you can see.

 

I've done mine every 60k so far

 

Correct.
I got 150k miles out of the one (serpentine belt) on my 2006.

 

The serpentine belt shouldn’t cause any damage if it breaks unless it takes out a pump or radiator. But you should probably change it. And keep the old one as a spare. The timing belt can cause havoc if it breaks or skips a tooth. You’ve probably sold that truck?

 

Yup.
Running a 2017 CM Limited now. The 2006DC 4x4 was a great truck though. Never once left me stranded anywhere.

 

Do your water pump, as well.

There is an Aisin Kit for all this. And, I like your radiator change at the same time.

Did my first timing belt change at 110k. Should have done the rad at same time because it ended up leaking out at 120k. Flush it all out.

Water pump, rad, TB, tensioner pulley all at same time coming up for me at 180k. One and done all at one time via mechanic.

 

Timing belt and water pump were done recently. The radiator is a known weak point on the first gen Tundras leading to the "pink milkshake" for some people. It's also an inexpensive part. At 17 years old it's probably near the ends of its life. I don't feel as though I could do the serpentine belt unless I free up more space by removing the radiator. Thus, I mentioned replacing both at the same time.

 

Water pump is done.

I found a record online and it looks like the previous owner had the tensioner pulley replaced around 57k.