Dongfeng Xinjiang Right rear longitudinal mudguard assembly 8403366-C5A00

Crafted from automotive-grade high-density polyethylene (HDPE) with a density of 0.95g/cm³, the mudguard body offers exceptional durability and flexibility—critical for heavy-duty operations in harsh environments (e.g., construction sites, rural gravel roads). Unlike traditional metal mudguards, HDPE resists rust, corrosion, and deformation caused by road salt, moisture, or accidental impacts (e.g., collisions with curbs or debris). It maintains structural integrity within a temperature range of -40°C to +85°C, avoiding brittleness in cold weather or softening in high heat. Additionally, the material’s surface is treated with an anti-scratch coating, reducing visible damage from gravel and extending the assembly’s service life to over 500,000 kilometers under normal use

The 8403366-C5A00 assembly features a longitudinal design optimized to cover the entire side of the right rear tire (from the top of the tire tread to 150mm above the ground), effectively blocking mud, water, gravel, and road debris from being thrown upward or outward during driving. It incorporates a curved inner baffle (with a radius of 210mm, matching standard 295/80R22.5 truck tires) that directs debris downward, preventing damage to the vehicle’s rear body panels, wiring harnesses, and brake lines. The mudguard’s lower edge is equipped with a flexible rubber strip (10mm thick) that minimizes gaps between the mudguard and the ground, further reducing splashing and ensuring compliance with road safety regulations for vehicle splash protection

Designed for ease of maintenance and replacement, the assembly adopts a bolt-on installation structure that uses Dongfeng Xinjiang’s original mounting holes on the chassis frame. It comes with pre-assembled galvanized steel brackets (4 pieces per unit) and high-strength bolts (grade 8.8) with anti-loosening lock washers, eliminating the need for drilling or welding. The brackets feature rubber damping pads between the steel and the mudguard body, which absorb vibration from the rear axle during driving—reducing noise (by up to 15dB compared to rigid-mounted mudguards) and preventing long-term wear between the mudguard and brackets. A single technician can complete installation in 30 minutes or less, significantly reducing vehicle downtime for fleet maintenance

The 8403366-C5A00 Right Rear Longitudinal Mudguard Assembly meets strict safety and environmental standards, including China’s GB 7258-2024 (Safety Technical Conditions for Motor Vehicles) and the European ECE R103 regulation for commercial vehicle mudguards. It undergoes rigorous testing, including: a 500-hour salt spray test (to verify corrosion resistance), a 10,000-cycle impact test (using 500g gravel at 60km/h to simulate road debris), and a dynamic vibration test (to ensure stability at speeds up to 120km/h). Additionally, the assembly’s white color (customizable to match vehicle body color upon request) meets reflectivity requirements, with optional reflective tape mounting slots (compatible with ECE R65-approved reflective materials) to enhance nighttime visibility—further improving road safety for both the vehicle and surrounding traffic