Truck-Lite 33203Y 33 Series Round Yellow LED Dual-Function Marker Clearance Light Kit – 0.75" 1-Diode, P2 Rated, Black Rubber Grommet, Hardwired 12V

Maximize your vehicle's on-road visibility and safety with the Truck-Lite 33203Y 33 Series Round Yellow LED Dual-Function Marker Clearance Light Kit. Widely recognized as the smallest LED marker lamp in the transportation industry, this 0.75-inch single-diode light delivers heavy-duty performance in a micro footprint. Designed with an advanced 3-wire setup, it operates as a dual-function lamp—serving as a standard clearance marker light while providing vital auxiliary turn signal functions. When the turn signal or hazard flashers are activated, the best-in-class auxiliary function flashes significantly brighter than standard marker mode, giving surrounding drivers an instant warning.

The Truck-Lite 33203Y is engineered for maximum electrical efficiency on standard 12V DC systems. Its solid-state single diode draws minimal current (a minor current of just 0.02 Amps), preserving critical system power for other heavy-duty components on your truck or trailer. Because LEDs have no fragile filaments, this unit is completely impervious to the severe shock, road vibrations, and physical impacts that easily destroy traditional incandescent bulbs. By sitting virtually flush inside its mounting profile, it stays protected against low clearances and shifting cargo—drastically driving down maintenance and replacement costs.

Built to endure the harshest road salt, heavy downpours, and freezing temperatures, this kit features a high-impact yellow (amber) polycarbonate lens and housing sonically sealed into a single, seamless unit. The internal electronics are completely encapsulated in a protective solid epoxy layer to seal out moisture, humidity, and corrosion. This comprehensive kit includes a flexible black rubber grommet mount engineered for a secure, weatherproof fit in a standard 0.75-inch mounting hole, and comes hardwired with 18 AWG wiring and 0.180" male bullet terminals for a fast, simple retrofit.

(Note: Exceeds P2 legal requirements. Always check local FMVSS-108 regulations regarding primary vs. auxiliary turn placement.)