Dongfeng GX truck parts Left rear wheel bracket assembly 8511080-H11A0

Built to support the extreme loads of commercial trucks (up to 10,000kg per rear axle for Dongfeng GX models), this bracket assembly features a reinforced steel structure. The main body is crafted from 12mm-thick high-strength carbon steel (Q345 grade), which offers a tensile strength of 510MPa—ensuring it can withstand the weight of the truck, cargo, and dynamic forces from acceleration, braking, and rough roads. It integrates a box-type cross-section design that enhances torsional rigidity, preventing bending or twisting under uneven loads (e.g., when driving on unlevel terrain). Critical stress points (e.g., mounting lugs and axle connection areas) are further reinforced with 15mm-thick steel plates and welded using robotic submerged arc welding—creating joints with 99% penetration and eliminating weak points. Rigorous load testing shows the bracket can endure 120% of the rated load for 10,000 cycles without permanent deformation, ensuring reliable performance in heavy-duty operations

Designed to withstand the harsh environmental conditions of truck operation (road salt, rain, mud, and humidity), the assembly features a multi-layer corrosion protection system. First, the steel surface undergoes a phosphate treatment to create a porous base that improves coating adhesion. Next, it is coated with an electrophoretic primer (E-coat) that penetrates all crevices, providing uniform corrosion resistance. Finally, a high-gloss powder coating (200μm thickness) is applied, which resists chipping, scratching, and chemical damage (e.g., from road de-icing agents). This coating system enables the bracket to pass 800 hours of neutral salt spray testing without signs of rust or coating peeling—far exceeding the industry standard of 500 hours. Unlike uncoated or single-layer painted brackets, this assembly maintains structural integrity and appearance for over 8 years, reducing maintenance costs for fleet operators

Beyond load bearing, this bracket assembly plays a key role in stabilizing and protecting the truck’s left rear wheel system. It features a built-in guide slot for the brake caliper, ensuring the caliper remains properly aligned with the brake rotor during braking—preventing uneven pad wear and maintaining consistent braking performance. The bracket also includes a dust shield mounting flange that secures the rear wheel dust shield, blocking road debris (stones, mud) from entering the wheel hub and damaging the bearings or seal. Additionally, it has a recessed design that creates clearance for the rear suspension’s shock absorber and leaf springs, avoiding interference during suspension movement and ensuring smooth operation over bumps. These integrated features reduce the risk of component failure and extend the lifespan of the entire rear wheel assembly

Engineered for efficient maintenance in truck repair shops, this assembly simplifies installation with user-friendly design elements. It comes with pre-assembled mounting hardware (high-tensile M16 bolts, lock washers, and nuts) that match the Dongfeng GX’s OEM specifications—no need for separate parts procurement. The bracket has laser-etched alignment marks that align with reference points on the chassis and axle, guiding technicians to position it accurately in 30–40 minutes using standard hand tools (no specialized equipment required). To guarantee quality, the product is manufactured in an IATF 16949 certified facility, with each unit undergoing strict inspections: dimensional checks (via 3D coordinate measuring machines) to verify fitment, load tests to confirm strength, and coating adhesion tests to ensure durability. It also includes a 48-month warranty against manufacturing defects (e.g., weld failure, material cracking, or coating peeling), providing Dongfeng GX truck owners and fleet operators with long-term peace of mind and minimal downtime