Dongfeng Xinjiang X3 truck parts Upper bumper grille 8406035-KXGG01Y

Built to withstand frequent impacts from road debris (e.g., stones, gravel) and minor curb collisions—common in Xinjiang’s rural and construction roads—the grille is crafted from a high-performance PP+TPO composite (75% polypropylene, 25% thermoplastic olefin). This material delivers a notched Izod impact strength of 11.5 kJ/m² at -30°C (resisting cracking in Xinjiang’s frigid winters) and a heat deformation temperature of 118°C (preventing warping under summer desert sunlight). The composite’s flexibility allows it to absorb impacts up to 60N force without permanent deformation, retaining its shape even after 350+ contact cycles. It also exhibits strong chemical resistance, withstanding exposure to road salt (used in winter de-icing) and diesel fuel without discoloration or material degradation (tested to 400 hours of chemical immersion). Compared to brittle ABS plastic grilles, this PP+TPO design extends service life by 65% in harsh northwest China conditions

Engineered to balance maximum cooling airflow and under-hood protection, the grille features a hexagonal grid pattern with 14mm×14mm openings. This design allows 95% of required cooling airflow (≥780 m³/h) to reach the X3’s radiator and intercooler—critical for maintaining the truck’s 6.7L diesel engine at optimal operating temperature (85–95°C) during heavy-load hauling in Xinjiang’s high-altitude (up to 3,000m) regions. Simultaneously, the grid blocks 80% of road debris larger than 8mm (e.g., small stones, sand particles) from entering the engine bay, reducing radiator fin damage by 70% vs. open-mesh grilles. The grid’s vertical and horizontal ribs (3mm thick) are reinforced at intersection points, increasing torsional stiffness by 38% and preventing bending when hitting obstacles at low speeds (≤5km/h)

Designed to endure Xinjiang’s extreme climate—large temperature differences (-35°C to 45°C), strong UV radiation, and sandstorms—the grille undergoes a three-stage protective process. First, a zinc phosphate conversion coating (60μm) forms a corrosion-resistant base. Next, an electrophoretic primer (80μm) seals the composite surface, preventing moisture intrusion. Finally, a UV-stabilized polyurethane topcoat (70μm) is baked on (180°C curing) to resist fading and brittleness. This coating system passes 1,500 hours of neutral salt spray testing (no rust or peeling) and 3,000 hours of xenon lamp aging (≤2% color fade)—critical for withstanding Xinjiang’s 3,000+ hours of annual sunshine. The grille’s inner surface is also treated with an anti-static spray, reducing sand adhesion by 50% and minimizing cleaning frequency in dusty environments

Designed for quick replacement by fleet technicians or local repair shops in remote Xinjiang areas, the grille uses a snap-on design with 10 integrated nylon 66 clips (tensile strength ≥170N) that lock into the X3’s upper bumper clip holes. Installation takes 8–12 minutes: clean the bumper opening with isopropyl alcohol to remove sand and grease, align the grille’s clips with the bumper holes, press firmly until each clip “clicks” into place, and verify no movement during vibration testing. The clips’ flexible design allows for easy removal during bumper maintenance, without damaging the grille or bumper. A thin, adhesive-backed EPDM foam strip along the grille’s inner edge seals gaps, reducing wind noise by 12% and preventing sand intrusion into the engine bay. Each unit undergoes clip retention testing, dimensional inspection via CMM, and airflow performance checks, backed by a 15-month warranty against defects (e.g., clip breakage, coating peeling, grid cracking)