The cost of replacing a water pump varies depending on vehicle type, but the national average is $291 to $394, according to Repair Pal. Most of this cost is labor for installing the new water pump. The average cost of parts is only $33 to $67, excluding taxes and fees.
The reason for the variance in cost is that some vehicles require a greater degree of intensive labor, while other vehicles require fairly basic measures, according to Water Pump Replacement Costs. To find a competitive price, call local auto mechanics and ask for an estimate from each. The total time spent should be 3 to 4 hours for in-depth replacements.