Dongfeng GX truck parts Spare tire rack assembly 3105910-KG6A0

Built to safely hold Dongfeng GX’s spare tire (weighing up to 55kg, including the wheel), the rack features a reinforced steel frame construction. The main support arms are crafted from 4mm-thick high-strength carbon steel (Q355 grade) with triangular reinforcing ribs at stress points (e.g., mounting lugs, tire cradle). This design enhances load-bearing capacity by 40% compared to standard tire racks, enabling it to support the tire’s weight without bending or deformation—even during off-road driving or rough terrain. The tire cradle is shaped to match the spare tire’s curvature, distributing weight evenly to prevent localized stress. Rigorous load testing confirms the rack can endure 100,000+ km of driving (including vibration and impact) without structural damage, ensuring reliable long-term use

Exposed to road salt, rain, mud, and humidity (common in truck operation), the spare tire rack undergoes a comprehensive anti-corrosion treatment. The steel frame first receives a zinc phosphate coating to create a rust-resistant base, followed by an electrophoretic primer (E-coat) that seals all crevices (including weld joints and bolt holes) for uniform protection. Finally, a black powder coating (200μm thickness) is applied, which resists chipping, scratching, and chemical damage from road debris or de-icing agents. This coating system enables the rack to pass 800 hours of neutral salt spray testing without rust or peeling—far exceeding the industry standard of 500 hours for truck chassis components. The coating also remains stable in extreme temperatures (-40°C to 120°C), ensuring no degradation from weather or engine heat

Engineered to simplify spare tire handling (critical for drivers during roadside repairs), the rack features a convenient operation system. It includes a manual crank mechanism with a high-strength steel cable that lowers and raises the tire—eliminating the need for heavy lifting. The crank handle is ergonomically designed for a comfortable grip (even with gloves) and includes a ratchet lock to hold the tire at any height, preventing accidental dropping. The tire cradle is equipped with adjustable rubber pads that secure the tire in place while protecting the wheel rim from scratches. Additionally, the rack has a built-in access door (with a secure latch) that allows quick access to the crank mechanism, even in tight chassis spaces. This design reduces the time to install or remove the spare tire by 50% compared to traditional bolt-on racks

Safety is prioritized in this rack’s design to prevent tire detachment during driving. It includes a dual-locking system: the crank mechanism has a self-locking gear that prevents cable slippage, and the tire cradle features a steel latch that secures the tire’s center hole to the rack’s support pin. This dual protection ensures the tire remains firmly in place, even during sudden braking, sharp turns, or rough road conditions. The rack’s mounting brackets are bolted to the chassis using high-tensile steel bolts (grade 10.9) with lock washers, preventing loosening from vibration. Additionally, the rack’s design complies with international safety standards (ISO 1219-2 for truck load security), ensuring it meets Dongfeng GX’s safety requirements for spare tire storage. Backed by a 36-month warranty against manufacturing defects (e.g., frame cracking, cable failure, or lock malfunction), the rack provides Dongfeng GX truck owners with reliable, long-term spare tire storage solution