Dongfeng KR truck parts Left Rear Fender Assembly 8403059-C5107

Designed to shield the truck’s rear body, chassis, and adjacent vehicles from mud, water, and road debris, the fender features a multi-layered protective structure. The main panel has a 15° downward angle that redirects splashes away from the truck body, while a 120mm-wide extended lower lip (curved toward the tire) blocks debris kicked up by the rear tire—reducing mud accumulation on the chassis by 75% compared to shallow fenders. The inner surface is molded with 8mm-deep drainage channels that channel water and small debris toward the ground, preventing pooling that causes corrosion. Unlike flat fenders that allow splashes to reach the fuel tank or electrical harnesses, this design protects critical components from water damage and reduces cleaning frequency for fleet operators

Built to withstand frequent impacts from road debris, curbs, and off-road obstacles, the fender uses high-grade PP (polypropylene) plastic reinforced with 30% glass fiber. This material combination delivers exceptional impact resistance (28 kJ/m²) and tensile strength (42 MPa), enabling it to endure hits from stones or branches at highway speeds without cracking. The fender’s edges are reinforced with 5mm-thick folded flanges that distribute stress across the chassis brackets, preventing deformation even under heavy loads (e.g., accidental contact with a curb). Unlike brittle ABS plastic fenders that shatter on impact, this reinforced PP design tolerates temperature extremes from -45°C (freezing winters) to 95°C (sun-heated road surfaces) without warping, ensuring durability for 7+ years of heavy use

Engineered to resist corrosion from road salt, mud, and UV radiation—critical for rear fenders exposed to harsh underbody conditions—the assembly features a three-stage protective coating. First, a zinc phosphate primer (60μm thickness) creates a base rust barrier. Next, an electrostatic epoxy coating (80μm) is applied for enhanced moisture resistance, followed by a UV-stabilized polyester topcoat (50μm, matching the truck’s original paint color) that resists fading and chalking. This coating system passes 1,000 hours of neutral salt spray testing (equivalent to 8 years of road salt exposure) without rust or peeling. The inner surface also receives a 0.2mm anti-scratch film that prevents damage from small debris, maintaining the fender’s structural integrity and appearance over time

Designed for hassle-free replacement by fleet technicians or DIY owners, the fender simplifies installation with precision-machined features and complete hardware. It includes all necessary components: 6 M8×30mm stainless steel bolts, 6 rubber washers (for vibration damping), 2 alignment pins (ensuring perfect positioning), and a foam gasket (sealing the gap between fender and chassis). Installation takes 30–40 minutes: align the fender’s pins with the chassis bracket holes, secure the bolts to 25 N·m torque (using a standard socket wrench), and verify clearance to the rear tire. The fender requires no post-installation adjustments—its pre-molded contours ensure proper tire clearance even during suspension compression. Each unit undergoes impact testing (1kg weight drop from 1m), dimensional verification via CMM, and coating adhesion checks, backed by a 24-month warranty against defects (e.g., cracking, warping, coating peeling)