How much to replace a seat belt From 2, 3 and 4 point seat belts to harnesses and lap belts, our experts can inject a new lease of life into almost anything – just let us know your requirements and we’ll get to work. You do not have to touch the seat controls side panels or remove the seats at OE replacement parts will generally cost you anywhere between $20 to $85. On average, you can expect to pay between $100 to $200. Seat Belt Buckle Replacement. To properly replace your seat belt, you need to completely detach the belt and buckle from your car. We must typically disassemble to clean, adjust, or replace. Dec 26, 2017 ยท My front seat belts on my '02 Tahoe are dirty and grimy. The seat belt tensioners are not intended for reuse and must be replaced following any front airbag deployment. The average price of a seat belt repair on FixMyCar is £135. Slide the seat back. fiqjnryzhcgdhujpanlyrbfghcdovztlrjxmktdxyzhzyssjsqwhtzsxskmlpcticci