2006 F115 water pump rebuild needed?

[herb.wilson@uno.edu]

I changed the water pump at 100 hours (12/2008) as a precautionary measure. No issues since and still have very good water pressure by a gauge. How often years and/or hours should the water pump be changed as part of regular maintenance? I now have 350 hours on the engine so it has been 250 hours or 2 years since last changing it out. It is not hard but it is $100.

[rodbolt17]

its about 70 dollars for the kit, takes about an hour to change.
cheap insurance.