Replacing stuck thermostat - should I replace waterpump?

[RenaissanceMan]

Thermostat is stuck open on my '05 3.0i. Haven't been having any issues with the waterpump but wondered if it is recommended to change it as well as a maintenance move? Wasn't sure how robust the pumps are in the long term...?

[80stech]

They often get replaced as a pair especially if the mileage is up there and if you don't know the history.

[nick325xit 5spd]

The water pumps are wear items.

[X5chemist]

For me, any pump with over 50k miles gets replaced. I replaced the thermostat recently on mine. However, the previous owner had recently replaced it. I'm debating the same issue. I'm ready for a coolant system refresh. 1-2 or more parts to order. CCV, coolant, sensors, and anything I can get done under the intake.

Would you go stock? Or upgrade to a Stewart pump? Metal impeller and better flow for summer cooling.

[RenaissanceMan]

Thanks everyone for the feedback. I will grab a waterpump as well since there's a good chance the original is still in there.

@X5chemist, you mentioned sensors... What sensors would you be replacing as part of a coolant system refresh?

[X5chemist]

The intake cam wiring and pigtail are under the intake. It can be reached without removing the intake though. The head coolant sensor is between cylinders 5/6. It's under the intake. The lower radiator hose also has a fan activation switch. It's inserted. So with an empty coolant line, it's a good time to replace it too. Only an o-ring holds in place for a leak to happen. A new o ring will also work there.