The exact figure for alternator replacement depends on the make and model of the car; most users paid a high average of $640 with the labor cost of only around $150, as of 2015. Alternator replacement is not labor intensive, usually takes less than 2 hours to complete. However, the cost of the part can be several hundred dollars.
Shops on the low-end of the spectrum only charge customers up to $400 per alternator replacement. This included a parts price of $280 with a labor cost of only about $120. These prices are based on the national average estimated by the RepairPal calculator and does not include expected tax cost.