The average cost to replace the timing belt ranges from $150 to $1,000, as of 2015. The range in price is based on the type of car and the cost of labor. This is a labor-intensive job that may take as many as eight hours.
Most of the time, vehicle manufacturers recommend opening the car up when replacing the timing belt and replacing other items, such as the idler arm, tensioner, water pump or drive belts. This is preventative maintenance and can help save money in the long run, as many mechanics offer package deals for this type of work. Though a person may save $100 by just getting the timing belt replaced, if another part breaks, the individual may spend hundreds more in the future.