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Dual-Circuit 4-Plug Configuration: Power-matched to seamlessly route current to standard upper rear identification light bars and dedicated license plate lamps.
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Ultra-Extended 35-Foot Reach: At 420 inches, this represents the standard stocked length harness for extended trailer rooflines, providing full coverage without excess wire clutter.
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Premium 14 AWG Conductors: Robust 14-gauge copper wiring provides excellent tensile strength, manages electrical resistance, and completely eliminates voltage drop over long runs.
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Molded PL-10 Connector Interface: Built with durable, factory-sealed PL-10 plugs that isolate pin connections from moisture intrusion, road grime, and pin rot.
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Adaptable Blunt Cut End: Unfinished terminal end allows technicians to easily adapt connections to any existing fleet wiring system or central distribution block.
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5-Year Manufacturer Warranty: Backed by Truck-Lite’s premium 5-Year Limited Warranty, securing long-term service life and fleet-wide peace of mind.
Truck-Lite 50341 – 50 Series 420” 4-Plug Upper Identification & License Plate Light Wiring Harness | PL-10 to Blunt Cut, 14 Gauge
The Truck-Lite 50341 (50 Series) Identification and License Plate Light Wiring Harness is an OEM-grade, ultra-long electrical assembly engineered for upper mounting positions on extended commercial trucks, long-haul semi-trailers, and specialized fleet bodies. Measuring an impressive 420 inches (35 feet) in length, this heavy-duty 2-conductor harness delivers simultaneous, clean electrical distribution to your upper rear identification marker light bars and your license plate illumination lamp, ensuring complete DOT highway visibility and fleet regulatory compliance across maximum distances.
Heavy-Duty Construction for Roofline & Long-Frame Reliability
Wiring mounted near the upper frame header or roofline of extended trailers faces continuous exposure to extreme weather, severe wind resistance, low-clearance friction, and aggressive environmental elements. The Truck-Lite 50341 solves this problem by utilizing a robust, factory-molded round protective jacket that completely seals its internal copper lines away from moisture, dust, and corrosive de-icing chemicals. This harness is outfitted with premium PL-10 molded plugs on one end to form a tight, weatherproof connection directly to your light fixtures, while the opposite side features a Blunt Cut termination. This blunt cut design provides fleet technicians with ultimate flexibility to cleanly route, custom-splice, or hardwire the harness directly into a central junction box or main power line without requiring unsafe, unsealed intermediate field splices.