Dongfeng VL truck parts Left bracket for upper foot pedal 8405267-C4102

Built to withstand repeated pedal forces (up to 550N during emergency braking) and long-term structural stress, the bracket is crafted from Q355B low-alloy high-strength steel—ideal for load-bearing automotive components. This material delivers a minimum yield strength of 355 MPa, tensile strength of 470–630 MPa, and impact toughness of ≥34 J at -40°C, enabling the bracket to bear a maximum static load of 18kN without deformation. The steel undergoes normalized heat treatment (900–950°C heating, air cooling) to refine its microstructure, enhancing fatigue resistance—passing 2.5 million load cycles (equivalent to 1 million km of road use) without crack formation. Compared to ordinary Q235 steel brackets, this Q355B design extends service life by 60% under frequent pedal use, critical for Dongfeng VL’s long-haul and heavy-duty applications

Engineered to minimize stress concentration and improve force transfer from the pedal to the cab floor, the bracket features a triangular reinforcement structure at the pedal pivot area—spreading forces (from the driver’s foot) evenly across a 120mm-wide contact zone on the cab floor. It integrates 5mm-thick reinforcing ribs along the bracket’s length, increasing torsional stiffness by 40% and reducing twist during sudden pedal activation (e.g., emergency braking). The pedal pivot mount is a closed cylindrical structure (16mm inner diameter, 5mm wall thickness) that provides 360° support for the pedal shaft, eliminating lateral movement that could cause pedal wobble. Unlike flat-plate brackets that bend easily, this optimized design maintains pedal stability even after 300,000+ pedal cycles, ensuring consistent driver feedback

Designed to resist corrosion from cab floor moisture, road salt, and accidental fluid spills (e.g., brake fluid, diesel), the bracket undergoes a four-stage protective process. First, a chemical degreasing and derusting treatment removes surface contaminants. Next, a zinc phosphate conversion coating (60μm thickness) creates a porous base for coating adhesion. Then, an electrophoretic primer (80μm) forms 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, and UV degradation. This coating system passes 1,200 hours of neutral salt spray testing without rust or peeling, ensuring durability in humid cab environments, snowy regions, or mining operations where corrosion risks are high

Designed for efficient replacement by fleet technicians, the bracket simplifies installation with user-friendly details. All mounting holes (pedal pivot and cab floor) are drilled to H8 tolerance, ensuring perfect alignment with the VL’s M14 cab floor bolts and M12 pedal shaft—avoiding cross-threading during assembly. The bracket’s edges are deburred to eliminate sharp surfaces that could damage adjacent components (e.g., wiring harnesses, floor mats). The package includes 2 grade 10.9 high-tensile bolts (M14×50mm for cab floor, M12×30mm for pedal pivot) and lock washers, pre-lubricated with molybdenum disulfide to prevent thread galling. Installation takes 30–40 minutes: remove the old bracket by detaching the pedal and cab floor bolts, align the new bracket’s reference marks with the cab floor and pedal, torque the bolts to 180 N·m (cab floor) and 110 N·m (pivot) per OEM specs, and verify pedal movement. Each unit undergoes dimensional inspection via CMM, load-bearing testing, and coating adhesion checks, backed by a 24-month warranty against defects (e.g., cracking, coating peeling, dimensional inaccuracies)