The OEM units are less than $60 each mailorder. It is curious that they both quit at the same time. I would do more checking of fuses and thermostats before spending $$ to replace elements that may be fine. I replaced the driver side element on mine last year. The element had broken and had burned a hole in the seat foam. Luckily, it did not burn a hole in the seat cover. It is somehwat of a tedious job, but you can do it yourself and save big. I used snap ties to put the seat back together.