Rebuilding an Aisin transmission typically costs anywhere from 2,500 to 4,500 US dollars or more, depending heavily on the specific model type, vehicle application, labor rates in your region, and the extent of internal component damage. Standard rebuild kits include new clutches, seals, gaskets, and bands, but if hard parts like planetary gears, torque converters, or valve bodies require replacement, total expenses can rise significantly, making professional diagnostic estimates essential prior to initiating service.