Description Passenger side; Screw-on lens, easy to change bulbs; Universal stud mount on 2" centers; Grounds through mounting studs; Shock-proof socket guarantees long bulb life; Acrylic lens and corrosion proof plastic housing. Stud mount universal combination tail light Six-function light for under 80" trailers Stop, turn, tail, rear reflex, side marker, side reflex 2" mounting centers Screw-on replaceable lens, replaceable bulb