Dongfeng KC truck parts lower step process assembly 8405910-C3101

Designed to safely support frequent passenger/driver entry and exit, the assembly features a reinforced structure with exceptional load-bearing capability. The step platform is constructed from 2mm-thick cold-rolled steel (Q235 grade) with a tensile strength of 375–500 MPa, capable of supporting a static load of up to 300kg—well exceeding the average weight of adult users plus tools. The mounting brackets are made of 3mm-thick steel plates (welded to the platform with 6mm fillet welds) that distribute weight evenly across the cab frame, preventing localized stress damage. Unlike lightweight aluminum or plastic steps that bend or crack under heavy loads, this steel-reinforced design endures 100,000+ entry/exit cycles (equivalent to 5 years of heavy use) without deformation, ensuring long-term safety for users

Engineered to prevent slips and falls—especially in wet, muddy, or icy conditions—the step platform integrates multiple safety-focused features. The top surface is embossed with a diamond-pattern texture (depth 2mm) that increases friction between shoes and the step, reducing slip risk by 70% compared to smooth surfaces. Additionally, the platform’s leading edge is equipped with a 10mm-thick rubber anti-slip strip (60 Shore A hardness) that provides extra grip and cushions accidental impacts (e.g., tripping). The step’s side and rear edges are folded upward (15mm height) to block water, mud, or debris from accumulating on the platform, further enhancing traction. Unlike steps with worn or smooth surfaces that become hazardous in bad weather, this design prioritizes user safety in all driving environments

Built to withstand harsh outdoor conditions—including road salt, rain, and humidity—the assembly uses a multi-layer corrosion protection system. The steel components undergo a three-step surface treatment: zinc phosphate pretreatment (for adhesion), electrostatic epoxy primer (60μm thickness), and a high-gloss polyester topcoat (80μm thickness) in factory-matched black. This coating system passes 1,000 hours of neutral salt spray testing (equivalent to 8 years of road salt exposure) without rust or peeling. The rubber anti-slip strip is made of EPDM material that resists ozone degradation and hardening in extreme temperatures (-40°C to 85°C), maintaining flexibility and grip for years. Unlike uncoated or single-layer painted steps that rust within 1–2 years, this corrosion-resistant design ensures the step remains functional and visually intact for 6+ years

Designed for hassle-free replacement by fleet technicians or DIY owners, the assembly simplifies installation and upkeep. It includes all necessary hardware: 8 OEM-matched stainless steel bolts (M8×35mm), lock washers, and rubber gaskets that fit directly into the cab’s existing mounting holes—no drilling, welding, or specialized tools required. Installation takes 30–45 minutes with standard hand tools (socket wrench, torque wrench), as the step aligns perfectly with the cab’s reference marks. For maintenance, the anti-slip texture and rubber strip are easy to clean (pressure washable up to 100 bar) to remove mud, salt, or debris. The corrosion-resistant coating requires no repainting, and the rubber strip can be easily replaced (via screws) if worn. Each unit undergoes strict testing: load-bearing trials (300kg for 24 hours), slip resistance testing (ASTM D1894 standard), and corrosion resistance verification. Backed by a 24-month warranty against manufacturing defects (e.g., bending, rusting, rubber strip peeling), it provides Dongfeng KC truck owners with a reliable, safe step solution for daily use