ST Water Pump, have you had to change it and when Options

[hurley97]

I'm wondering how the ST water pumps hold up to see if its worth it for me to change it.

so here are my questions to you ST owners:
1. whats the regular service interval for the water pump?
2. have you ever changed your water pump?
3. was it because it went bad or just preventative maintenance?
4. what mileage was it done at?

[alltracman78]

Hm

Here's how I look at it.

First off, and most importantly, you're not going to hurt anything [but your wallet] by changing it.
Secondly, they aren't cheap. They're not made of gold, but an OEM pump is over $100 for most of you [Steph is a possible exception].
And most aftermarket pumps are junk.
Take a minute and compare the impellers on one to a OEM pump...
I almost blew one of my Alltracs engines by using one.

At work we usually change the pump every time we do a T belt.
But, keep in mind a new pump is more $$ for us, and also is pretty much a guaranteed no comeback [assuming the tech did it right].

Me personally, I feel every second belt is a more reasonable time to change it. Toyota pumps rarely fail in 120,000 miles.