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3-Plug Upper Configuration: Perfectly spaced and optimized to power standard 3-lamp rear upper identification light bars or cluster marker configurations.
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Extended 24-Foot Coverage: At 288 inches, this represents the standard stocked length harness, eliminating wire clutter and minimizing unsealed mid-frame connections over long spans.
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Premium 14 AWG Conductors: Built with a heavy-duty, 2-conductor round cable profile that manages electrical current effortlessly and increases overall tensile strength.
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Fit 'N Forget Sealed Connectors: Factory-molded proprietary plugs isolate critical electrical contacts from moisture intrusion and de-icing chemicals.
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Adaptable Blunt Cut Termination: Unfinished wire ends allow for direct hardwiring and versatile integration into any existing fleet wiring subsystem.
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5-Year Manufacturer Warranty: Backed by Truck-Lite’s trusted 5-Year Limited Warranty, securing long-term service life and fleet-wide peace of mind.
Truck-Lite 50368 – 50 Series 288” 3-Plug Upper Identification Light Bar Wiring Harness | Fit 'N Forget M/C to Blunt Cut, 14 Gauge
The Truck-Lite 50368 (50 Series) Upper Identification and Marker Clearance Wiring Harness is an OEM-grade, heavy-duty electrical assembly engineered for upper mounting positions on commercial trucks, semi-trailers, and logistics fleets. Spanning an impressive 288 inches (24 feet) in length, this specialized 3-plug harness effortlessly reaches up vehicle rooflines or across extended frame rails. It delivers simultaneous, clean electrical distribution to your required trio of upper identification lamps or cluster marker light bars, keeping your fleet fully visible and compliant with federal DOT highway lighting safety standards.
Fit 'N Forget Technology for High-Altitude Weather Isolation
Wiring mounted near the upper frame header or trailer roofline faces continuous exposure to extreme weather, intense wind resistance, high-pressure washes, and aggressive environmental elements. The Truck-Lite 50368 handles these demanding conditions with proprietary Fit 'N Forget M/C (Marker/Clearance) molded plug interfaces. This advanced connector design seals directly against the light fixture to create an airtight, moisture-proof barrier that effectively eliminates pin corrosion, water pooling, and pin rot.
The opposite side features a Blunt Cut termination. This unfinished wire design gives fleet technicians ultimate flexibility to cleanly route, custom-splice, or hardwire the 2-conductor internal lines (Black and White) directly into a central junction box or main power distribution trunk line without requiring unsafe, unsealed intermediate field splices.