Dongfeng GX truck spare parts Step assembly 2701710-H03A1

As a critical safety component for driver and passenger boarding, this step assembly boasts exceptional load-bearing performance. The main step plate is fabricated from Q235B carbon steel via precision stamping, with a 4mm-thick base and 3mm-thick reinforcing ribs arranged in a grid pattern—enhancing anti-bending strength by 60% compared to flat plates. It achieves a static load capacity of 300kg, easily supporting the weight of two adults (including tools) without deformation. The stamping process optimizes material distribution, ensuring the step plate withstands 100,000+ treading cycles (equivalent to 500,000km of use) without cracking. The mounting brackets, made of Q550 high-strength steel, further reinforce the structure, limiting deflection to ≤1mm under maximum load

Optimized for all-weather boarding safety, the step assembly integrates advanced anti-slip and wear-resistant features. The step plate’s surface is processed with diamond-pattern embossing (depth 1.5mm) and coated with aluminum oxide anti-slip particles, increasing the friction coefficient to 0.85—preventing slips even in rainy, snowy, or oily conditions. The coating has a pencil hardness of ≥3H, resisting scratches from work boots and tools, and maintains anti-slip performance for ≥300,000km. The step’s edge is equipped with a raised rubber buffer strip (EPDM material) that reduces impact noise during treading and prevents water from seeping into the mounting gap, avoiding corrosion of the bracket

Engineered to resist corrosion and impact in harsh under-vehicle environments, the 2701710-H03A1 assembly adopts a comprehensive protective system. The entire steel structure undergoes shot blasting (Sa 2.5 grade) to remove rust and impurities, followed by a 40μm cathodic electrophoretic primer for uniform rust prevention. The top layer is a 50μm weather-resistant polyester powder coating, which achieves 2000-hour neutral salt spray resistance (ASTM B117) with no red rust—adapting to coastal humidity, road salt, and muddy construction sites. The step plate’s corners are rounded (R10mm) to absorb impact from gravel (up to 60km/h) without denting, ensuring long-term structural integrity

This step assembly is designed for efficient installation and long-term cost savings for Dongfeng GX operators. The pre-assembled structure (step plate + mounting brackets + grade 8.8 bolts + lock nuts) allows a single technician to complete replacement in 45 minutes using only a torque wrench (target torque: 80±5N·m)—no welding or drilling required. The OE-compatible design eliminates fitment issues of aftermarket steps, which often cause unstable boarding or cab paint damage (repair costs up to $500). The durable materials and anti-corrosion coating extend service life to ≥800,000km—twice that of non-OE alternatives—reducing replacement frequency. Backed by a 2-year/300,000km Dongfeng warranty, it ensures safe boarding and predictable maintenance expenses for fleets