Dongfeng GX First level step right connection bracket assembly 8406162-C6200

Exposed to road salt, rain, mud, and humidity, the 8406162-C6200 bracket assembly undergoes a rigorous three-step anti-corrosion treatment to extend service life. First, a zinc phosphate pretreatment (15-17μm thick) creates a corrosion-resistant base and enhances coating adhesion. Second, an electrophoretic primer (22-25μm thick) provides uniform coverage—even in hard-to-reach weld joints—to block moisture infiltration. Finally, a matte-black polyester powder coating (85-95μm thick) meets ISO 10289 standards, passing 1400-hour neutral salt spray tests without red rust. This protection ensures the bracket resists rust and degradation in coastal, snowy, or industrial areas, maintaining structural integrity for over 10 years—twice the lifespan of standard uncoated steel brackets

As a direct replacement for Dongfeng GX’s original first-level step bracket, the 8406162-C6200 assembly adheres strictly to OE specifications. Manufactured using 3D laser scanning of the GX’s right-side frame and step mounting points, it achieves dimensional accuracy within ±0.12mm—matching every hole position, contour, and connection feature. The assembly includes 6 pre-drilled mounting holes (M10 threaded, 15mm depth) that align perfectly with the truck’s frame rails and first-level step, eliminating gaps that could cause rattling or misalignment. It is fully compatible with all Dongfeng GX models produced since 2022 (including cargo, long-haul, and dump variants), requiring no drilling, grinding, or modification to the vehicle’s original structure

To withstand road vibration and minor impacts, the 8406162-C6200 bracket assembly features a reinforced triangular structure—optimized via finite element analysis (FEA) to distribute stress evenly. The connection plate integrates two 4mm-thick diagonal ribs that reduce bending stress by 45% during step use, while the frame-mounting section includes a rubber anti-vibration gasket (shore hardness: 60±5A) that absorbs 80% of road vibration (frequency range: 10-2500 Hz). This design prevents bracket loosening or weld fatigue from long-haul driving on rough terrain. Additionally, the bracket’s edges are rounded (5mm radius) and the step-connection surface is milled flat (surface roughness: Ra 3.2μm) to ensure a tight, stable fit with the step—avoiding wear from repeated stepping

The 8406162-C6200 assembly is designed for hassle-free installation, ideal for fleet maintenance teams. It comes with a complete hardware kit: 6 grade 10.9 high-strength hexagon bolts (with anti-loosening nylon washers), 6 lock nuts, and 2 rubber anti-vibration gaskets—all meeting Dongfeng OE standards. Installation requires only standard hand tools (13mm socket wrench) and can be completed by two technicians in 25-30 minutes: align the bracket with the frame/step mounting points, secure with bolts, and torque to 45±5 N·m (per Dongfeng’s specifications). The kit also includes a installation guide with torque values and alignment marks, reducing errors and ensuring compliance with the truck’s safety standards. The lightweight design (3.8kg) simplifies handling, while the powder-coated surface resists scratches during installation