Dongfeng KL truck parts Left turn signal assembly 3726210-C3300

Equipped with 12 high-brightness SMD LED chips (each 2.5 lumens), the assembly delivers a vivid amber light (6000K color temperature) that meets international safety standards (ECE R65, FMVSS 108). The LEDs produce a flash rate of 60–120 flashes per minute (matching Dongfeng KL’s factory flasher relay) and a total light output of 300 lumens—200% brighter than traditional incandescent bulbs. This brightness ensures the turn signal is visible from 500+ meters in daylight, fog, or heavy rain, allowing oncoming and adjacent vehicles to anticipate turns in advance. The light is diffused via a frosted polycarbonate lens that creates a uniform glow (no hotspots) and enhances lateral visibility, making the signal recognizable from multiple angles. Unlike incandescent bulbs that burn out within 1,000 hours, these LEDs have a lifespan of 50,000+ hours, reducing replacement frequency and maintenance costs

Built to withstand the harsh conditions of commercial truck use—including road debris impact, constant vibration, and extreme temperature fluctuations—the assembly features a durable structure. The housing is made of impact-resistant ABS plastic (UL94 V-0 flame-retardant rating) that resists cracks from minor collisions (e.g., hitting branches, gravel, or construction materials) and maintains rigidity in temperatures ranging from -40°C to 85°C. The internal circuit board is secured with vibration-dampening foam gaskets that absorb cab vibrations (up to 2500 Hz), preventing loose connections or LED damage caused by prolonged shaking. The lens is a 3mm-thick polycarbonate sheet with a scratch-resistant coating, enduring 10,000+ cycles of cleaning with standard truck wash brushes without optical degradation. Unlike plastic lenses that haze or crack over time, this rugged design ensures reliable performance for 3+ years

Engineered to protect internal components from water, dust, and road salt—major causes of turn signal failure—the assembly meets IP67 ingress protection standards. A rubber O-ring gasket lines the junction between the housing and lens, creating a hermetic seal that blocks water intrusion during heavy rain, snow, or high-pressure truck washes. The electrical connector is a sealed 3-pin plug with a rubber boot that prevents moisture from seeping into the wiring, avoiding short circuits and corrosion. Additionally, small drain holes at the bottom of the housing channel any accumulated condensation out of the assembly, preventing mold growth or damage to internal circuits. Unlike non-sealed turn signals that fail within months in wet or dusty climates, this waterproof design ensures consistent functionality even in coastal, snowy, or off-road environments

Designed for efficient replacement by fleet technicians or DIY owners, the assembly simplifies installation with user-friendly features. It includes 4 OEM-matched self-tapping screws (M5×16mm) that fit the truck’s existing mounting holes, requiring no drilling or modification. The 3-pin electrical connector is keyed to prevent reverse insertion, eliminating wiring errors that could damage the truck’s electrical system or the turn signal itself. Installation takes 15–20 minutes with basic hand tools (e.g., Phillips screwdriver), as the assembly aligns perfectly with the cab’s mounting points. The turn signal complies with global automotive safety regulations (ECE R10 for electromagnetic compatibility, ISO 14080 for light intensity), ensuring it doesn’t interfere with other truck electronics and meets road safety requirements in major markets (EU, North America, Asia). Backed by a 24-month warranty against manufacturing defects (e.g., LED failure, lens cracking, waterproof seal damage), it provides Dongfeng KL truck owners with reliable turn signal functionality and enhanced driving safety