Dongfeng VL truck parts Right bumper assembly 8406010-C4301

Built to withstand low-speed collisions (up to 25km/h) and road debris impacts, the bumper’s outer shell uses a PP+TPO composite (80% polypropylene, 20% thermoplastic olefin) with exceptional impact resistance (notched Izod strength: 12 kJ/m² at -30°C) to avoid cracking in cold climates. The inner structure integrates a 1.5mm-thick high-strength steel reinforcement beam (Q355B grade, tensile strength 470–630 MPa) that absorbs 60% of impact force during collisions, protecting the right-side radiator, intercooler, and chassis components. The composite shell also resists heat deformation up to 115°C, retaining shape under direct sunlight or engine bay heat—preventing warping that could block airflow to cooling systems. Compared to all-plastic bumpers, this steel-reinforced design improves impact resistance by 55% while keeping weight 30% lower than all-steel alternatives

Engineered to meet China’s GB 26512-2011 commercial vehicle front impact standards, the bumper features a multi-stage crash absorption design. The outer composite shell deforms in a controlled “crumple” pattern during minor impacts (≤15km/h), absorbing 35% of impact energy to avoid damage to underlying components. The inner steel reinforcement beam is paired with three 80mm-thick EPDM rubber energy absorbers (mounted between the beam and chassis) that compress to dissipate residual impact force—reducing chassis frame deformation by 40% vs. bumpers without absorbers. The bumper’s lower edge includes a 15mm-tall rigid plastic skid plate that protects the right-side lower grille and oil pan from damage when driving over curbs or small obstacles. Unlike rigid bumpers that transfer full impact to the chassis, this design balances protection and flexibility for daily heavy-duty use

Designed to integrate seamlessly with the VL’s front-end systems, the bumper includes pre-molded cutouts for the right fog light (120mm×80mm opening, compatible with the VL’s factory 12V LED fog lights) and a ventilation slot (300mm×50mm) that directs 15% of front airflow to the right-side intercooler—enhancing cooling efficiency for the VL’s 6.7L/7.8L diesel engine. The fog light cutout features a rubber gasket that seals against the light housing, preventing water and dust intrusion, while the ventilation slot includes a mesh screen (10mm×10mm openings) that blocks road debris from entering the intercooler fins. The bumper’s outer surface also has pre-drilled holes for mounting the VL’s factory right-side tow hook (M18 thread size), eliminating the need for post-installation drilling. These integrated features reduce assembly time and ensure full compatibility with the truck’s original systems

The bumper undergoes a three-stage anti-corrosion and weather-resistant treatment: a zinc phosphate conversion coating (60μm) for base protection, an electrophoretic primer (80μm) to seal the composite surface, and a polyurethane topcoat (70μm) that resists fading, chipping, and UV damage. This coating system passes 1,200 hours of neutral salt spray testing without rust or peeling, ensuring durability in snowy, coastal, or mining regions. For installation, the bumper comes with 8 grade 10.9 high-tensile bolts (M14×50mm) and lock washers, pre-lubricated to prevent thread galling. It mounts directly to the VL’s factory chassis brackets via pre-drilled holes, requiring no specialized tools—installation takes 60–90 minutes for a two-person team. Each unit undergoes dimensional inspection via CMM, impact testing, and water leak verification, backed by a 24-month warranty against defects (e.g., cracking, coating peeling, reinforcement beam deformation)