The main cost associated with replacing a starter is the cost of the starter itself, plus labor if the work is done at an auto repair shop or dealership. If the ring gear on the flywheel needs to be replaced, that is an additional cost.
Starters can cost as low as $50 for older vehicles or as high as $500 for newer or foreign vehicles as of 2015. Labor usually ranges from $100 up to $150, according to YourMechanic. Some cars, such as the 2008 Audi R8 may require more extensive labor, costing as much as $322.
When a starter begins to weaken, it can end up grinding against the ring gear on the flywheel. If this happens, the ring gear may need to be replaced at the same time.