12 truck parts and structural parts therefor, namely, wheel covers, brake drums, rear view mirrors, side view mirrors, windshields, windshield wipers, windshield wiper blades, key guards, hood ornaments, bezels, nut covers, grab handles, license plate covers, mud flap frames and weights, fenders, fender guards, transmission belts, drive belts, drive gears, running boards, steering wheels, steering king pins, shock absorbers, caps for wheel rims, hub caps, bumpers, mud flap weights and brackets, clutches, hoods, tire valves, seats, transmissions and replacement parts thereof, switches, sun visors; trailer parts, namely, brakes, brake drums, slack adjusters being parts of vehicle brake systems, s-cams being parts of vehicle brake systems, structural extrusions, body panels, structural cross members, floor panels, doors