I was surprised the other day when I called my local auto parts store and discovered that the Bosch 1-wire sensor for my '86 5KCSTQ was $120. Then I called another import parts outlet in the area and he didn't have the Bosch sensor but a generic replacement - $35 bucks. Even if the generic gives only half the life it is a bargain. Call around and see what you can find. Best Wishes, Alex