Dongfeng VR truck parts Right chassis harness protector 3724471-C1102

Designed to shield the chassis harness from core threats (impact, moisture, abrasion), the protector integrates three defensive structures. First, a 3mm-thick outer shell resists impact from road  (up to 5kg at 30km/h) and prevents sharp objects (e.g., metal scraps) from piercing the harness insulation. Second, an inner EPDM rubber liner (2mm thickness) creates a waterproof seal, blocking mud, rainwater, and road salt from seeping into the harness—reducing short-circuit risks by 90%. Third, a smooth inner surface minimizes friction between the protector and，avoiding insulation wear caused by vehicle vibration (tested to withstand 2,000 hours of 30Hz vibration without damage). Unlike single-layer plastic guards that only block large debris, this multi-layer design comprehensively safeguards the harness, a critical component for power transmission and sensor signals

Built to withstand harsh undercarriage conditions (temperature extremes, physical impact), the protector is crafted from a high-performance PP+talc composite (70% polypropylene, 30% talc). This material delivers exceptional impact resistance (notched Izod strength: 12 kJ/m² at -30°C), ensuring it won’t crack in cold winters when struck by ice chunks. It also resists heat deformation up to 115°C, maintaining shape under engine bay heat or summer road surface radiation. The composite’s rigidity (flexural modulus: 2,800 MPa) prevents the protector from sagging over time, even when supporting the weight of the harness and accumulated mud. Unlike brittle ABS plastic protectors that break after 6–12 months, this PP+talc design endures 80,000+ km of road use while retaining structural integrity

Engineered to resist degradation from road chemicals, moisture, and UV rays, the protector undergoes a specialized surface treatment. A UV-stabilized acrylic coating (15μm thickness) is applied to the outer shell, blocking 98% of harmful UV rays and preventing material brittleness—even after 3,000 hours of direct sunlight exposure. The coating also repels diesel, engine oil, and road deicers, forming a chemical barrier that avoids discoloration or structural damage (tested to withstand 500 hours of immersion in diesel without swelling). Additionally, the EPDM inner liner is infused with anti-aging agents, resisting hardening or cracking in temperatures from -40°C to 90°C. Unlike uncoated protectors that degrade quickly in harsh climates, this weatherproof design ensures long-term reliability in rain, snow, or coastal environments

Designed for hassle-free replacement by fleet technicians or DIY owners, the protector simplifies installation with precision features and complete hardware. It includes 6 pre-marked mounting holes (drilled to H9 tolerance for perfect bolt fit) and two laser-etched alignment lines that match reference points on the VR’s chassis frame—eliminating guesswork and reducing installation time to 25–30 minutes. The package comes with all necessary hardware: 6 M8×25mm stainless steel bolts, lock washers, and a tube of thread-locking adhesive (to prevent bolt loosening from vibration). Installation steps are straightforward: clean the chassis mounting surface, align the protector’s marks with the frame, secure the bolts to 35 N·m torque (per OEM specs), and verify clearance with adjacent components. No post-installation adjustments are needed—the OEM fit ensures the harness stays fully enclosed. Each unit undergoes impact testing, waterproof verification, and dimensional checks, backed by a 24-month warranty against defects (e.g., cracking, coating peeling, bolt rust)