<p>It may depend on the design and quality and maybe the environment in which the car was driven. I remember that the timing belt service interval on my car was 90,000 miles but it was considerably fewer models on a similar car, the Camry from the same era.</p>
<p>I just had a look around and it appears that there are many cars that recommend changing the timing belt at 60K and it also appears that a lot of people ignore that recommendation. Is the car that you’re looking at one of those that recommends changing the timing belt at 60K? If so, that may be why the water pump was changed.</p>