Dongfeng VR Right front headlight assembly 3772020-C1200

Engineered for exceptional nighttime and low-visibility performance, this right front headlight assembly integrates high beam, low beam, and daytime running light (DRL) functions, all optimized for commercial truck safety. The high beam uses a 65W halogen bulb (or optional 40W LED variant) with a parabolic reflector design, delivering a long-range beam that illuminates up to 180 meters ahead—critical for detecting obstacles on unlit highways. The low beam (55W halogen/30W LED) features a precision-cutoff shield that prevents glare to oncoming vehicles while providing wide, even coverage of the road surface (120° horizontal visibility). The DRL, powered by energy-efficient LED chips (10W), emits a bright white light (6000K color temperature) that activates automatically when the engine starts, enhancing the truck’s conspicuity during daytime fog, rain, or overcast conditions—reducing collision risks by 30%+ compared to vehicles without DRLs

Built to withstand the harsh operating conditions of commercial trucks, the 3772020-C1200 assembly features a dual-layer protection design: a high-impact polycarbonate (PC) lens and a reinforced ABS plastic housing. The PC lens is treated with a scratch-resistant coating (hardness rating ≥HRC 3H) and UV stabilizers, preventing yellowing, cracking, or surface damage even after 6,000+ hours of exposure to sunlight, road debris, or stone impacts. The ABS housing is corrosion-resistant and impact-proof, capable of withstanding minor collisions (e.g., with curbs or small obstacles) without structural deformation. Both materials endure extreme temperature ranges (-45°C to 90°C), performing reliably in freezing winter climates or hot desert environments, and the assembly holds an IP67 waterproof rating—providing complete protection against dust ingress and temporary submersion in water (up to 1m for 30 minutes), eliminating internal short circuits from rain or road splashes

The headlight’s optical system is engineered to meet global safety regulations, including ECE R112 (automotive lighting), GB 4785 (Chinese vehicle lighting standards), and FMVSS 108 (U.S. federal standards), ensuring compliance for domestic and international fleet operations. The high and low beams use a multi-reflector structure that distributes light evenly, avoiding hotspots or dark areas that could obscure hazards. The low beam’s cutoff line is calibrated to align with road gradients, maintaining optimal visibility without dazzling oncoming drivers. Additionally, the lens features an anti-fog coating that prevents condensation buildup inside the housing—critical for maintaining clear light output in humid conditions. The DRL’s brightness (150-300 cd) meets international standards, ensuring the truck is visible to other vehicles from a distance of up to 800 meters during daytime

Designed for efficiency, the 3772020-C1200 assembly supports quick, tool-free installation: it attaches to the truck’s right-front frame via pre-fitted snap-in clips and a single plug-and-play wiring connector. This reduces installation time from 60+ minutes (for generic headlights) to 20-25 minutes, lowering labor costs for fleet maintenance teams. The assembly’s modular design allows easy access to internal bulbs—removing the rear access panel by hand enables replacement of halogen or LED bulbs without disassembling the entire housing. The LED components have a lifespan of 50,000+ hours (equivalent to 5+ years of average truck use), minimizing replacement frequency, and the PC lens/ABS housing require only occasional cleaning with water to maintain performance. The assembly is marked with the part number, manufacturing date, and compliance certifications (ECE, CCC, DOT) for easy inventory tracking and regulatory verification