Dongfeng GX truck parts Middle bridge right rear mudguard assembly 8511035-TF971

Unlike single-piece mudguards, the 8511035-TF971 features an integrated structure that combines the mudguard shell, internal reinforcing ribs, and pre-welded mounting brackets—eliminating weak points and enhancing overall rigidity. The internal ribs (3mm-thick, spaced 65mm apart) are robotically welded to the shell, creating a framework that resists bending or warping under heavy debris impact (e.g., large rocks or clumps of mud). The pre-welded mounting brackets (4mm-thick high-strength steel) are angled to match the GX’s middle bridge contour, ensuring the assembly sits flush against the chassis and avoids vibration-induced noise during driving—a common issue with loosely fitted split mudguards. This structural reinforcement ensures the assembly maintains its protective shape even after prolonged use in harsh conditions (e.g., construction sites or muddy rural roads)

The assembly uses a dual-material design to balance flexibility and durability: the mudguard shell is crafted from high-density polyethylene (HDPE)—a rugged, impact-resistant plastic that absorbs minor impacts without cracking—while the mounting brackets and reinforcement plates are made from 4mm-thick Q235 high-strength steel for secure chassis attachment. HDPE exhibits exceptional temperature resistance, remaining functional at -40°C (cold winter conditions) and 85°C (hot road surfaces), and passes 2500-hour UV aging tests with no brittleness or color fading. The steel components undergo a zinc-plating treatment followed by a powder coating, providing double protection against corrosion—critical for trucks operating in coastal regions (saltwater spray) or snowy areas (de-icing salts). This composite construction makes the assembly 32% lighter than all-steel alternatives while maintaining comparable strength

Exclusively tailored for Dongfeng GX heavy-duty trucks (compatible with 2021+ cargo, dump, and tractor variants with middle bridge configurations), the 8511035-TF971 adheres strictly to original equipment (OE) specifications. Manufactured using 3D laser scanning of the GX’s middle bridge right rear wheel well and chassis, it achieves dimensional accuracy within ±0.3mm—matching every contour of the middle bridge axle, wheel hub, and lower chassis. The assembly includes 7 pre-drilled mounting holes that align perfectly with the GX’s factory-installed middle bridge brackets, eliminating gaps that could allow debris to seep through. It requires no trimming, bending, or modification to the vehicle’s original structure, ensuring a seamless fit that preserves the truck’s factory integrity and avoids aftermarket-related alignment issues

The 8511035-TF971 is designed for efficient installation and minimal upkeep, ideal for fleet maintenance teams. It comes with a complete OE-spec hardware kit: 7 grade 8.8 stainless steel bolts (M8×28), 7 lock nuts with anti-loosening washers, 7 rubber gaskets (to prevent metal-to-plastic friction and vibration), and a printed alignment guide. Installation requires only standard hand tools (13mm socket wrench) and can be completed by two technicians in 30-35 minutes: align the assembly with the middle bridge brackets using the pre-drilled holes, secure the bolts to 36±3 N·m (per Dongfeng’s torque specifications), and verify a 22mm minimum clearance between the mudguard and wheel (to avoid contact during rotation). For maintenance, the HDPE shell wipes clean with a damp cloth or pressure washer—no harsh chemicals needed—and the rubber gaskets are replaceable if worn, ensuring long-term vibration resistance and protection