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The TRUCK-LITE 30250R3 is a 30 Series LED side marker and clearance light designed for commercial vehicle and trailer lighting applications. This compact red round lamp runs on 12 volts and draws only 0.05 amps, making it an energy-efficient replacement for incandescent marker lights. The unit features a 2-diode configuration and is built to the Fit N Forget M/C standard, which indicates a sealed, maintenance-free design intended for long service life with minimal upkeep. It ships in bulk format without a plug pre-installed, allowing installers to terminate wiring to match the existing harness. Fleet maintenance shops, trailer repair facilities, and commercial vehicle technicians are the typical installers of this component.
This marker light is suited for use on trucks, trailers, and other commercial vehicles where DOT-compliant side marker and clearance lighting is required. The 30 Series designation places it within a well-established family of Truck-Lite marker lamps commonly specified for both OEM and aftermarket installation on long-haul trailers, flatbeds, and utility trailers. Because it ships bulk with no plug, it integrates into existing wiring without adapter hardware where the harness already has a bare-wire or direct-splice configuration. It is available in a package quantity of 50 units, making it practical for fleet-scale stocking.
Designed as an OEM-style replacement or new-installation marker light for commercial trucks, trailers, and other 12-volt vehicle lighting systems requiring DOT-compliant side marker and clearance lamps in red.
Installation is typically performed by commercial vehicle electricians or trailer technicians. Disconnect vehicle power before servicing any lighting circuit. Because this unit ships without a plug, the installer must terminate leads directly to the vehicle harness using appropriate connectors and weatherproof sealing methods. Wiring should comply with applicable FMCSA and vehicle electrical codes for commercial vehicle lighting.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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