Dongfeng VL truck parts Lateral stabilizer bar assembly 5001077-C4302

Built to withstand high torsional forces during cornering, load shifts, or rough road conditions, the core stabilizer bar is forged from 50CrVA alloy steel (heat-treated to HRC 38–42) with a tensile strength of 1,200 MPa and yield strength of 1,050 MPa. This material resists permanent deformation even under extreme lateral loads (up to 8,500 N·m of torque, exceeding the VL’s suspension design limit by 18%). The bar’s surface undergoes shot peening (coverage ≥95%) to eliminate surface stress concentrations, extending fatigue life by 40% compared to unpeened bars. The integrated mounting brackets are made of 6mm-thick Q345B carbon steel, welded to the bar via robotized MIG welding (weld seam strength ≥480 MPa) to ensure no separation under torsional stress

Engineered to reduce body roll and improve driving stability—critical for heavy-duty trucks—the assembly features a optimized torsional stiffness of 28,000 N·m/rad. During cornering (e.g., 90° turns at 35 km/h with full load), it limits lateral body tilt to ≤5° (vs. 8° with a worn stabilizer bar), enhancing tire contact with the road and reducing oversteer/understeer risks. The pre-installed natural rubber bushings ( Shore A hardness 65±5) absorb vibration between the bar and chassis, minimizing road noise transmission to the cab (reducing cabin noise by 6 dB at 60 km/h). Unlike rigid stabilizer bars that compromise ride comfort, this design balances stability and smoothness, maintaining control on uneven roads while avoiding harsh vibrations for drivers

Designed to resist corrosion from road salt, mud, and moisture (common in undercarriage environments), the assembly undergoes a three-stage protective process. First, a zinc phosphate conversion coating (50μm thickness) forms a corrosion-resistant base. Next, an electrophoretic primer (70μm) is applied to seal pores and enhance coating adhesion. Finally, a high-gloss polyurethane topcoat (40μm) is baked on, providing UV resistance and chemical protection against diesel or road deicers. The stabilizer bar’s bushings are coated with a silicone-based anti-aging agent, preventing hardening or cracking in temperatures from -40°C to 80°C. This system passes 1,000 hours of neutral salt spray testing without rust, ensuring durability in snowy, coastal, or off-road conditions

Designed for hassle-free replacement by fleet technicians, the assembly simplifies installation and upkeep. It includes a complete hardware kit: 4 M12×45mm high-tensile bolts (grade 10.9), lock washers, and 2 replacement rubber bushings (pre-lubricated with lithium grease for reduced friction). Installation takes 45–60 minutes: remove the old stabilizer bar by unbolting the brackets, align the new assembly with the VL’s suspension pivot points, secure the bolts to 85 N·m torque (per OEM specs), and verify bushing alignment. Maintenance is minimal: only annual inspection of bushing wear and bolt tightness—no periodic lubrication needed (thanks to pre-lubricated bushings). Each unit undergoes torsional stiffness testing, dimensional verification via CMM, and corrosion checks, backed by a 24-month warranty against defects (e.g., bar deformation, bushing failure, coating peeling)