Dongfeng KL trcuk parts Front roof and right floor panel 5704030-C3300

Designed to enhance cab rigidity and protect occupants, the assembly combines two critical structural functions. The front roof panel integrates reinforced crossbeams (3mm-thick steel ribs) that distribute impact forces (e.g., from falling debris or minor rollover scenarios) across the cab’s roof frame—reducing roof deformation by 40% and improving occupant safety. The right floor panel features a honeycomb-shaped understructure (optimized via finite element analysis) that supports up to 800 kg of static load (compatible with Dongfeng KL’s driver seat and cargo) while absorbing vibrations from the road. Unlike thin, non-reinforced panels that bend or crack under stress, this dual-design assembly maintains cab structural integrity during long-haul use and protects against common damage risks (e.g., tool drops on the floor, wind-driven debris on the roof)

Built to withstand the harsh conditions of truck operation—including moisture, road salt, and daily wear—the panel uses premium, purpose-engineered materials. Both roof and floor panels are crafted from HC340LA cold-rolled steel, a high-strength material with a tensile strength of 340–420 MPa that resists denting and fatigue. The roof panel undergoes a zinc-aluminum alloy coating (15μm thickness) via hot-dip galvanizing, followed by a matte black acrylic topcoat that resists UV fading and scratches from cleaning. The floor panel is coated with a textured polyurethane layer (1mm thickness) that resists stains from oil, grease, and mud, while providing anti-slip traction for drivers wearing work boots. Unlike standard steel panels that rust or wear thin within 3–4 years, this material combination ensures the assembly lasts 6+ years in harsh environments

Engineered to improve cab comfort by blocking external elements and noise, the assembly includes advanced sealing and soundproofing features. The front roof panel’s edges are lined with EPDM rubber gaskets that compress against the cab’s windshield frame and side pillars, preventing rainwater, dust, and wind from entering the cab—reducing water leaks by 95% compared to worn OEM panels. The right floor panel integrates a foam insulation layer (5mm-thick closed-cell foam) between the steel base and polyurethane topcoat, which absorbs 60% of road vibrations and reduces interior noise by 12 dB at highway speeds (critical for reducing driver fatigue during long shifts). Unlike uninsulated, unsealed panels that contribute to a noisy, drafty cab, this design creates a quieter, more weathertight environment for drivers

Designed for efficient replacement by fleet technicians or body shops, the assembly simplifies installation with user-friendly features. It includes all necessary hardware: 32 OEM-specification bolts (M6×20mm for roof, M8×25mm for floor), lock nuts, and pre-cut rubber gaskets—no additional parts or specialized tools required. The panels have laser-etched alignment marks that match reference points on the cab frame (e.g., roof drip rails, floor seat brackets), ensuring accurate positioning in minutes. Installation takes 90–120 minutes for both panels, as they fit seamlessly with existing Dongfeng KL components (e.g., roof vents, floor mats, seat assemblies). Each unit undergoes strict quality testing: dimensional verification via coordinate measuring machine (CMM), load-bearing trials, and water leak testing (for the roof panel). Backed by a 24-month warranty against manufacturing defects (e.g., panel warping, coating peeling, gasket failure), it provides Dongfeng KL truck owners with reliable cab structural support and long-term comfort