Get your semi or trailer Ready for the Road Ahead with bright and clear signal lights, with the Truck-Lite 2" x 6" Oval 6-LED Side Turn Marker Light Kit. To make certain vehicles adhere to local or federal standards, this replacement bulb emits a vivid beam to indicate brakes, tail signals, or emergencies. Constructed with a premium bulb to work for extended periods of time. FleetPride is your First Click in Heavy Duty .