Dongfeng xinjiang truck parts left protective support of the frame 2809217-T5KF04Y

Built to defend the left frame rail and underlying parts from road hazards, this support delivers comprehensive protective performance. The outer layer features a 10mm-thick Q235 carbon steel impact plate that absorbs and disperses force from rocks, curbs, or debris—preventing dents, cracks, or bending in the frame’s high-stress areas (e.g., cross-member joints and rail edges). A 5mm-thick EPDM rubber buffer pad lines the inner side of the support, creating a shock-absorbing barrier between the support and frame. This pad reduces vibration-induced wear by 45% (compared to unbuffered supports) and minimizes noise from metal-to-metal contact during driving. Additionally, the support extends 125mm below the frame rail, acting as a “skid plate” to deflect obstacles away from vulnerable left-side components like fuel lines, wiring harnesses, and hydraulic hoses—reducing the risk of costly leaks or system failures

Engineered to endure the mechanical stress of commercial truck operation—including static loads (up to 850kg) and dynamic torsion from uneven roads—the protective support features a reinforced Q355B low-alloy high-strength steel structure. The main body (8mm thick) delivers a minimum yield strength of 355MPa and tensile strength of 470-630MPa, ensuring it resists deformation even under heavy cargo loads (e.g., full-load hauling on construction sites or mountain roads). The support’s connection points to the frame are reinforced with 12mm-thick triangular gussets, which distribute torsional forces evenly across the frame rail and prevent cracking at stress concentrations. Unlike ordinary carbon steel supports, Q355B’s low-temperature toughness (-40℃ impact energy ≥34J) avoids brittle fracture in freezing environments—critical for trucks operating in northern regions with sub-zero temperatures. This robust design ensures the support maintains structural integrity for over 8 years of heavy-duty use

Designed to resist corrosion from road salt, mud, rain, and chassis grease—major threats to undercarriage components—the left frame protective support features a professional three-layer anti-corrosion system. First, a zinc phosphate pretreatment layer (10μm) is applied to the steel surface to block rust at the substrate, creating a foundation for coating adhesion. Then, a high-temperature electrostatic powder coating (85-100μm) with epoxy-polyester composite is baked on, forming a scratch-resistant, waterproof barrier that resists peeling even after prolonged exposure to road chemicals or UV radiation. Finally, a clear chromate passivation layer enhances coating durability and chemical resistance. This system passes 1200-hour salt spray testing (per ASTM B117) with no red rust, ensuring durability for over 10 years in coastal areas, rainy regions, or winter roads with deicing salt. All mounting holes are pre-coated with anti-seize compound, preventing thread rust and enabling easy removal during frame maintenance or repairs

Designed for efficient installation on Dongfeng Xinjiang trucks, the left frame protective support undergoes CNC cutting, bending, and drilling to achieve strict dimensional accuracy. The 6 mounting holes are drilled with a concentricity error of ≤0.1mm, ensuring perfect alignment with the left frame rail’s pre-drilled holes and preventing bolt cross-threading. The support’s surface roughness is ≤1.6μm, ensuring flat contact with the frame rail for even load distribution. The package includes 6 galvanized M12×40 high-strength bolts (grade 10.9), lock washers, and flat washers that match the factory thread specifications and torque requirements. Installation steps are straightforward: align the support with the left frame rail, secure the bolts to the recommended torque (60-65N·m), and verify clearance with adjacent components (e.g., fuel tank, suspension). No specialized tools are required, and one technician can complete installation in 40 minutes or less. This easy installation design reduces labor costs and minimizes truck downtime—critical for commercial operators relying on continuous vehicle availability