-
Complete Professional Installation Kit: Comes supplied with the 4" round clear light head, a rigid gray 3-hole surface mount flange, and a 2-wire right-angle PL-2 wiring harness with a stripped-end/ring terminal layout.
-
Vibration-Welded / Sonically Sealed Body: The premium polycarbonate lens and housing are permanently fused together to protect internal electrical components from cargo area dust and moisture.
-
Shock-Mounted Heavy-Duty Bulb: Specialized elastomeric internal bulb cradle cushions the incandescent filament from heavy chassis vibration, ensuring it outlasts standard stock interior lights.
-
Stable 3-Hole Flange Mount: Features a rigid gray polycarbonate flange plate with three pre-drilled hardware channels that form an ultra-secure, clean anchor point on walls or ceilings.
-
Flexible Wiring Options: The included 16-gauge pigtail harness features a right-angle PL-2 plug on one side and a stripped-end / ring terminal layout on the other for fast vehicle electrical integration.
-
Future-Proof LED Upgrade Compatibility: Shares standard 4-inch industrial spacing, allowing an effortless plug-and-play upgrade to LED systems down the line using Truck-Lite’s Super 44 Series.
Truck-Lite 40023 – 40 Series 4" Round Clear Sealed Incandescent Dome Light Kit (Gray Flange Mount, PL-2 Right Angle Plug)
Illuminate your commercial vehicle's interior cab, sleep compartment, cargo area, or utility bay with the professional-grade Truck-Lite 40023 40 Series Dome Light Kit. Engineered for high structural durability and crisp, dependable interior lighting, this 4-inch round clear sealed light kit is a standard-setting choice for heavy-duty commercial semi-trucks, medium-duty delivery vans, box trucks, and service bodies.
This complete, ready-to-install kit includes three factory-matched components: the Truck-Lite 40203 Clear Sealed Lamp, a 40715 Gray Polycarbonate Flange Mount, and a 94992 Right Angle PL-2 Pigtail Plug. Built to handle the rigorous shaking of commercial line-haul applications, the high-impact polycarbonate lens and housing are vibration-welded (sonically sealed) together to eliminate dust and moisture infiltration. Inside, the high-output single incandescent bulb is protected by a specialized internal shock mount that absorbs rough road impacts, extending bulb life and preventing premature failures.