Typical costs: Hiring a mechanic to replace a water pump typically costs $300-$750, depending on the make and model of car and the more parts that need to be removed. Purchased separately, a water pump typically costs $50-$100 or more, depending on the make and model of the car. For example, Iowa-based retailer Northern Auto Parts sells the A1. Shop 1987 Toyota Camry Engine Water Pump. Water Pump - Repair or Replace If any of the components of SEIKI, AISIN, Cooling - OEM Toyota Part # 1611019205 (16110-19205, 1611019135) Toggle navigation. 1987 Toyota Camry.