Dongfeng GX truck parts Middle bridge left rear mudguard 8511031-TF971

Constructed from high-density polyethylene (HDPE)—a rugged, impact-resistant material—the 8511031-TF971 mudguard balances durability and flexibility. HDPE exhibits exceptional wear resistance, withstanding constant friction from gravel and road debris without developing cracks or holes (unlike thin plastic or metal alternatives that dent or corrode). The material’s inherent flexibility allows it to absorb minor impacts (e.g., from large rocks or curbs) without permanent deformation, ensuring it maintains its protective shape over time. It also resists extreme temperatures, remaining functional at -40°C (cold winter conditions) and 85°C (hot road surfaces), making it suitable for trucks operating across diverse climates—from freezing northern regions to hot southern areas

Exclusively tailored for Dongfeng GX heavy-duty trucks (compatible with 2021+ cargo, dump, and tractor variants with middle bridge configurations), the 8511031-TF971 mudguard adheres strictly to original equipment (OE) specifications. Manufactured using 3D laser scanning of the GX’s middle bridge left 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 mudguard includes 6 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 8511031-TF971 mudguard is designed for efficient, error-free installation, ideal for fleet maintenance teams or repair shops. It comes with a complete OE-spec hardware kit: 6 grade 8.8 stainless steel bolts (M8×25), 6 lock nuts with anti-loosening washers, and 6 rubber gaskets (to prevent metal-to-plastic friction and vibration). Installation requires only standard hand tools (13mm socket wrench) and can be completed by two technicians in 25-30 minutes: align the mudguard with the middle bridge brackets using the pre-drilled holes, secure the bolts to 35±3 N·m (per Dongfeng’s torque specifications), and verify that the mudguard clears the wheel by at least 20mm (to avoid contact during rotation). The rubber gaskets not only reduce vibration-induced noise (a common issue with loosely mounted mudguards) but also create a waterproof seal, preventing water from seeping into the mounting holes and causing corrosion on the middle bridge brackets

The HDPE material and surface treatment of the 8511031-TF971 mudguard provide exceptional resistance to harsh environmental factors, ensuring long-term durability. It is impervious to water, road salt, and automotive chemicals (e.g., diesel fuel, engine oil), preventing material degradation or discoloration even after prolonged exposure—critical for trucks operating in snowy regions (where de-icing salts are common) or coastal areas (with saltwater spray). The mudguard also features a UV-stabilized surface that resists sun-induced brittleness and fading, maintaining its structural integrity and appearance for over 8 years (passing 2500-hour xenon lamp aging tests). Unlike painted metal mudguards, it requires no periodic repainting to protect against corrosion, reducing long-term maintenance costs for fleet operators