FITMENT - The Mirror fit for 2013-2021 Kenworth T680 2013-2021 Peterbilt 579 2013-2018 Peterbilt 587. FUNCTION AND INTRODUCTION - This Mirror is for model equipped with factory.This is A Rear Towing/Trailer Side Mirror Assembly, Not a Cap Power. Brackets are made of reinforcement plastic, prevent vibration when driving, increase blind spot visibility and a wider angle during daily or towing activities, look further.. EASY INSTALLATION - (1) take down the plastic plate fixing screw from the car with a screwdriver;(2) take down the plastic plate to see the rear view mirror and the fixing screw of the door, and use a screwdriver to take down the screw;(3) install the new rear view mirror out of the window and connect the power cord;(4) lock the door and fix the screws, then move the plastic plate to the original position and lock the screws..
