Give your Bronco a fuel door that shows its work. A tempered glass window lets you eye the cap and filler at a glance, so you can confirm the cap is seated without popping the door open — and the glass is scratch-resistant, so it stays readable after a few seasons of dust. It swaps straight in for the factory door with no modification, trading soft stock plastic for a carbon fiber face over a machined alloy frame. Sealing rings run behind the window and around the hinge line to keep moisture and grit out of the filler recess. The hinge itself is reinforced nylon-fiberglass rather than bare plastic, which is the part that usually gives up first on a door you open every week. At 0.6 kg it adds hard-wearing style to the flank without adding real weight.