What are the costs to replace the timing belt & water pump in a 4runner?

A new timing belt for a Toyota 4Runner will cost between $40 and $60 while a water pump will cost between $30 and $50. If You are going to be replacing both parts You will want to purchase a full timing belt and water pump replacement kit and these will range in cost from $100 to $175. If You have this kit installed by a mechanic You will be looking at spending an extra $300 to $600 in labor costs. The timing belt for these vehicles will need to be replaced between every 60,000 and 100,000 miles which means You should only need to have this job done once maybe twice over the entire life span of the vehicle.