Dongfeng Kinland truck parts Upper left inner mudguard assembly 8403319-C0100

A core advantage of the 8403319-C0100 assembly is its exceptional ability to block mud, water, and road debris from splashing into the truck’s underbody and wheel well components. The mudguard’s main panel is designed with a 15° downward slope and a 50mm-tall outer lip, which redirects 90% of mud, rainwater, and gravel kicked up by the left front/rear wheel away from critical parts like the axle housing, brake lines, and fuel tanks. This prevents debris buildup in hard-to-clean areas (e.g., between the wheel and frame), reducing the risk of corrosion on metal components and clogs in brake cooling systems. For Kinland trucks operating in muddy construction sites, rainy rural roads, or snow-prone regions, this protection cuts underbody cleaning time by 60% and extends the lifespan of underbody parts (e.g., brake hoses, wiring harnesses) by 2-3 years—lowering maintenance costs significantly

Built to withstand the rigors of heavy-duty truck operations—including impacts from debris, extreme temperatures, and chemical exposure—the 8403319-C0100 assembly uses a high-performance composite material. The main panel is constructed from fiberglass-reinforced plastic (FRP) with a polyester resin matrix, delivering a tensile strength of 280MPa and impact resistance of 30kJ/m²—capable of withstanding hits from small stones (up to 500g) without cracking. The FRP material is impervious to rust, making it ideal for wet or salty environments, and resistant to degradation from diesel, motor oil, and road salts. Additionally, the panel’s surface is coated with a UV-stabilized gel coat (0.5mm thickness) that prevents fading or brittling in prolonged sunlight (UV resistance rating: UVA 400), ensuring durability in temperatures ranging from -40°C to 85°C. Unlike metal mudguards that dent or rust, this composite design maintains structural integrity for 8+ years

The 8403319-C0100 assembly includes thoughtful design elements to enhance sealing performance and reduce road noise. It comes pre-installed with a 10mm-thick EPDM rubber seal along the top edge, which presses tightly against the truck’s body panel to prevent mud or water from seeping through gaps. The bottom edge features a flexible rubber flap (150mm long) that skims the ground (adjustable via mounting slots) to block low-splashing debris while accommodating uneven road surfaces. These seals also act as noise dampeners, reducing wind turbulence and debris impact noise by up to 18% compared to worn or generic mudguards. For Kinland drivers spending 8+ hours daily on the road, this noise reduction improves cabin comfort, reducing fatigue caused by constant road noise

The 8403319-C0100 assembly is designed for efficient installation and flexible adjustment, minimizing Kinland truck downtime. It comes fully pre-assembled with all necessary hardware: 8x stainless steel self-tapping screws (M6×20mm), 8x rubber washers (to prevent water intrusion), and the pre-attached EPDM seal and rubber flap. The mounting holes feature 20mm-long slotted slots, allowing ±15mm of horizontal and vertical adjustment to accommodate minor wheel well variations or suspension height changes (common in construction variants with lifted frames). Installation takes 30-40 minutes for a single technician using only a Phillips screwdriver—no drilling, cutting, or welding required. For fleet operators, this easy installation reduces labor costs, while the tool-free adjustment ensures the mudguard can be fine-tuned to fit different truck configurations—maximizing both protection and usability