Dongfeng VL truck parts Front suspension upper right bracket process assembly 5001960-C4105

Built to withstand the high tensile and torsional forces of front suspension operations (critical for heavy-duty hauling), the bracket is crafted from Q355B low-alloy high-strength carbon steel. This material delivers a minimum yield strength of 355 MPa and tensile strength of 470–630 MPa, enabling the bracket to bear a maximum static load of 8,500 N without deformation (exceeding the VL’s front suspension design load by 20%). The steel undergoes normalized heat treatment (890–950°C heating, air cooling) to refine grain structure, enhancing impact toughness (≥34 J at -40°C) and resistance to fatigue failure. Compared to ordinary Q235 steel brackets, this Q355B design extends service life by 50% under frequent load changes (e.g., highway driving, off-road hauling)

Engineered to improve suspension stability and load distribution, the bracket features a reinforced triangular structure at the shock absorber mounting area—distributing vertical and lateral forces evenly across the front frame. The bracket’s integrated rib design (5mm-thick reinforcing ribs spaced 40mm apart) enhances torsional stiffness by 35%, reducing bracket twist during sudden braking or cornering. A 20mm-deep recess at the control arm pivot interface ensures tight fitting with the pivot bushing, minimizing play (≤0.5mm) between components and improving steering responsiveness. Unlike flat-plate brackets that lack structural support, this optimized design maintains suspension alignment accuracy (camber, caster angles) even under full-load conditions (up to 15 tons of front axle load)

Designed to resist corrosion from road salt, mud, and moisture (common in undercarriage environments), the bracket undergoes a three-stage protective process. First, a zinc phosphate conversion coating (60μm thickness) creates a porous base to enhance coating adhesion. Next, an electrophoretic primer (80μm) is applied to form a uniform moisture barrier, preventing rust from forming on steel surfaces. Finally, a high-gloss epoxy powder coating (70μm) is baked on (180–200°C curing) to resist chipping, chemical damage (e.g., diesel, road deicers), and UV degradation. This coating system passes 1,200 hours of neutral salt spray testing without rust or peeling, ensuring durability in snowy, coastal, or mining areas—where undercarriage corrosion is a major concern

Designed for hassle-free replacement by fleet technicians, the bracket simplifies installation with precision-machined features and complete hardware. All mounting holes are drilled to H8 tolerance (ensuring perfect alignment with the VL’s suspension bolts) and deburred to avoid damaging bolt threads. The package includes 4 M16×50mm high-tensile bolts (grade 10.9) and lock washers, pre-lubricated with anti-seize compound to prevent thread galling during installation. Installation takes 30–40 minutes: remove the old bracket by unbolting the shock absorber and control arm, align the new bracket’s holes with the frame mounting points, torque the bolts to 180 N·m (per OEM specs), and verify suspension movement. Each unit undergoes dimensional inspection via CMM (Coordinate Measuring Machine), load-bearing testing, and corrosion resistance checks, backed by a 24-month warranty against defects (e.g., cracking, coating peeling, dimensional inaccuracies)