Dongfeng xinjiang truck parts Rear left mudguard bracket assembly 8511080-T5KECG01

Built to securely hold the rear left mudguard (weight: 4.8-7.5kg) during long-haul and off-road operations, this bracket assembly features a reinforced Q355B high-strength steel structure. The main support arm (4.8mm thick) delivers a minimum yield strength of 355MPa and tensile strength of 470-630MPa, enabling it to withstand road vibrations, wind resistance, and minor impacts (e.g., from flying stones or curbs) without bending or deformation. Key stress points—including bracket-to-chassis joints and mudguard mounting plates—are reinforced with 3.8mm-thick triangular gussets, which distribute weight evenly and prevent localized stress cracking. Unlike thin carbon steel brackets, Q355B’s low-temperature toughness (-40℃ impact energy ≥34J) avoids brittle fracture in freezing winter conditions, making it suitable for trucks operating in cold regions. This robust design ensures the mudguard remains stable even under heavy-haul loads (25+ tons) or bumpy road conditions, preventing sagging or detachment that could damage rear tires or brake components

Engineered to resist corrosion from mud, rain, road salt, and water splashes—major threats to rear chassis components—the bracket assembly features a professional three-layer anti-corrosion system. First, a zinc phosphate pretreatment layer (8μm) is applied to the steel surface to block rust at the substrate. Then, a high-temperature electrostatic powder coating (70-90μm) with epoxy-polyester composite is baked on, forming a scratch-resistant, waterproof barrier that resists peeling or fading even after prolonged exposure to muddy water. Finally, a clear chromate passivation layer enhances coating adhesion and chemical resistance. This system passes 1000-hour salt spray testing (per ASTM B117) with no red rust, ensuring the bracket remains corrosion-free for over 7 years in coastal areas, rainy regions, or winter roads with deicing salt. All threaded holes are coated with anti-seize compound, preventing thread rust and enabling easy bolt removal during mudguard replacement or chassis maintenance

Designed for efficient installation, the bracket assembly undergoes CNC machining to achieve strict dimensional accuracy and surface quality. Its length/width tolerance is controlled within ±0.5mm, and the pre-drilled holes have a concentricity error of ≤0.1mm—ensuring perfect alignment with the truck’s rear left chassis and mudguard. The package includes 6 galvanized M10×35 bolts, lock washers, and rubber gaskets (for vibration damping and water sealing) that match the factory thread specifications. Installation steps are straightforward: align the bracket’s holes with the rear chassis mounting points, secure the bolts to the recommended torque (30N·m) with a standard wrench, then attach the mudguard to the bracket using the factory’s existing fasteners. One technician can complete installation in 22 minutes or less, avoiding time-consuming on-site adjustments. For repair shops or truck operators, this easy installation design reduces labor costs and minimizes rear-end downtime—critical for commercial trucks relying on daily transportation tasks

Beyond fixing the mudguard, the bracket assembly is optimized to enhance the mudguard’s functionality and longevity. It incorporates a vibration-damping design: rubber gaskets between the bracket and mudguard absorb road vibrations, preventing metal-to-metal contact that could cause mudguard cracking or annoying noise during driving. The bracket’s 11° outward tilt angle is calibrated to position the mudguard optimally—ensuring it effectively blocks mud, water, and stones from splashing onto the rear left tire, brake calipers, or adjacent vehicles, reducing wear on these components. Additionally, the bracket’s edges are rounded and deburred (radius: 2mm), preventing scratches on the mudguard or damage to nearby parts (e.g., brake hoses) during installation or operation. The assembly also includes pre-installed plastic cable clips to organize rear left light wiring, avoiding wire wear from mudguard vibration. This focus on functional enhancement ensures the mudguard and rear-end components remain protected and operational for longer, lowering maintenance costs for Dongfeng Xinjiang truck owners