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Complete Professional Installation Kit: Features the 4" round clear reverse light head, a flexible black flush-mount grommet, and a 2-wire right-angle PL-2 plug wiring harness with a stripped-end/ring terminal layout.
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Sonically Sealed Polycarbonate Body: Lens and housing are vibration-welded together, ensuring maximum resistance to high-pressure chemical washes, heavy rain, and harsh weather.
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Vibration-Dampening Shock Mount: Specialized internal bulb cradle cushions the incandescent filament from heavy chassis vibration and pothole impact, reducing premature failures.
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Universal Flush-Mount Design: Mounts cleanly into any standard 4.5-inch diameter structural panel cutout utilizing the included premium black PVC grommet for a sleek, tool-free snap fit.
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Regulatory Fleet Compliance: Fully certified to meet strict FMVSS 108, CMVSS 108, DOT, and SAE standards specifically for legal back-up and reverse configurations (Note: Not legal or recommended for dome light use).
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Easy LED Upgrade Compatibility: Shares standard 4-inch industry spacing, allowing for a seamless plug-and-play future upgrade to LED systems utilizing Truck-Lite’s Super 44 Series.
Truck-Lite 40004 – 40 Series 4" Round Clear Sealed Incandescent Back-Up Reverse Light Kit (Black Grommet Mount, PL-2 Right Angle Plug)
Ensure maximum safety and visibility when reversing with the heavy-duty Truck-Lite 40004 40 Series Back-Up Light Kit. Engineered to deliver crisp, dependable illumination for rear vehicle maneuvering, this 4-inch round clear sealed reverse light kit is the gold standard for commercial semi-trucks, box trucks, utility trailers, vocational bodies, and heavy-duty fleets.
This all-in-one installation kit comes complete with three factory-matched components: the Truck-Lite Clear Sealed Reverse Lamp, a Black PVC Rubber Mounting Grommet, and a 2-Wire Right-Angle PL-2 Pigtail Plug. Built to withstand the non-stop rattling of long-haul line applications, the high-impact polycarbonate lens and housing are permanently sonically sealed to form an airtight barrier against dust, moisture, and road spray. Inside, the high-output single incandescent bulb sits in a specialized internal shock mount that isolates the filament from severe road jolts, extending service life far beyond standard stock backup lights.