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Complete Hardware Installation Kit: Features the 4" round clear reverse light head, a flexible black flush-mount grommet, and a complete 3-wire socket assembly pigtail 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 downpours, and road grit.
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Vibration-Dampening Shock Mount: Specialized internal elastomeric 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 interior 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 products.
Truck-Lite 40306 – 40 Series 4" Round Clear Sealed Incandescent Back-Up Reverse Light Kit (Black Grommet Mount, Complete Socket Assembly Wire Harness)
Ensure maximum safety, visibility, and legal fleet compliance when reversing with the heavy-duty Truck-Lite 40306 40 Series Back-Up Light Kit. Engineered to deliver crisp, dependable rearward illumination for vehicle maneuvering, this 4-inch round clear sealed reverse light kit is an industry-standard choice 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 specialized 3-Wire Socket Assembly Harness. Built to handle the heavy shaking of long-haul line applications, the high-impact polycarbonate lens and housing are permanently vibration-welded (sonically sealed) together 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 actively cushions the filament from severe road jolts and chassis vibrations, extending service life far beyond standard alternative backup lights.