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Complete Retrofit Kit: Shipped with a reflectorized yellow marker lamp, a 2-screw surface mount base, and a matching plug-and-play wiring harness.
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Dual-Bulb Backup Protection: Intelligent two-bulb architecture keeps the lamp actively illuminated even if one internal filament breaks mid-route.
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Integrated Reflex Reflector: Built-in reflectorized lens surface maximizes passive visibility and ensures FMVSS 'A' class compliance.
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Sonically Welded Polycarbonate: High-impact polycarbonate housing and lens are fused together to permanently seal out dust, water, and road chemicals.
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Vibration-Proof Male Pins: Heavy-duty male pin terminal configuration ensures continuous electrical connection despite severe structural vibration.
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Multi-Compliance Certification: Meets strict DOT safety requirements with A, P2, and PC ratings, making it suitable for clearance, marker, and 45-degree angle combination applications.
Truck-Lite 29003Y 21 Series Yellow Rectangular 2-Bulb Marker Clearance Light Kit | Reflectorized Lens, Male Pin, .180 Bullet, 12V
Ensure maximum side-profile visibility, built-in safety redundancy, and complete legal compliance with the Truck-Lite 29003Y 21 Series Yellow Rectangular Incandescent Marker Clearance Light Kit. Designed as a comprehensive, plug-and-play lighting solution, this heavy-duty 2" x 6" class marker lamp layout is an industry standard for commercial semi-trucks, dry van trailers, flatbeds, and vocational vehicles. This complete installation kit comes fully equipped with a high-visibility yellow/amber 2-bulb sealed lamp featuring a reflectorized lens, a secure surface mount base, and a matching plug-in harness.
Reflectorized Optics & Dual-Bulb Safety Redundancy
Eliminate the risk of roadside citations and unsafe blind spots caused by single blown filaments. The Truck-Lite 29003Y is engineered with an advanced 2-bulb configuration, guaranteeing that if one filament breaks due to extreme road shock, the secondary bulb continues to illuminate, keeping your vehicle legal and visible until your next maintenance stop. Additionally, the lens features integrated reflex optics (reflectorized), which reflect surrounding headlights even when the vehicle is parked and powered off, providing a critical secondary layer of highway safety.
Sonically Sealed Defense & Secure Male Pin Connection
To handle the brutal spray, wind, and debris of long-haul transport, the high-impact polycarbonate lens and housing are sonically sealed together, creating a watertight, one-piece assembly that eliminates internal lens fogging and moisture intrusion. This kit features a robust male pin connector design that locks securely into the included PL-10 type plug connection. Electrical routing is cleanly finalized via a heavy-duty, 18-gauge wiring harness outfitted with a .180 bullet terminal and a pre-attached ground ring terminal, ensuring a reliable isolated ground circuit on any mounting surface.