Truck-Lite 33209Y 33 Series LED 0.75" Round 1-Diode Yellow Marker Clearance Light Kit – Dual Function, Black Rubber Grommet Mount, 15.5" Extended Hardwired Lead 12V

Maximize your heavy-duty trailer layout options and overall road visibility with the Truck-Lite 33209Y 33 Series LED Yellow Round Marker Clearance Light Kit. Widely recognized as the world’s smallest LED marker lamp for the commercial transportation industry, this highly versatile 0.75-inch, 3-wire light packs industry-leading safety standards into a micro footprint. When properly wired, it delivers elite multi-functional performance, acting simultaneously as a side marker, clearance light, auxiliary turn signal, and auxiliary stop light. Engineered with an active auxiliary signaling function that glows seven times brighter than standard baseline marker mode, this amber/yellow light ensures nearby motorists see your vehicle's lane adjustments and turns instantly.

What sets the Truck-Lite 33209Y apart from other 33 Series lights is its extra-long 15.5-inch hardwired lead. This extended wire length provides maximum installation flexibility, allowing you to easily route connections through deep trailer frames, wide rear-door headers, and tight structural corners without needing to stitch together messy wire extensions. Terminated with standard .180 male bullet connectors, it plugs securely into existing truck and trailer wiring harnesses for a quick retrofit over standard 3/4-inch cutout holes.

The internal circuitry of the 33209Y is completely encapsulated and sealed in deep-void protective epoxy, ensuring the solid-state, non-filament LED layout remains entirely immune to severe chassis vibration, moisture intrusion, and thermal shock. Encased in a rugged, high-temperature yellow polycarbonate lens and supported by a robust black rubber grommet mount, this kit isolates your safety lighting from physical damage and heat entrapment. Because it operates on incredibly low current (Major: 0.12 Amps / Minor: 0.03 Amps), it limits battery and alternator drain, freeing up valuable power for other critical auxiliary systems.