Dongfeng VR truck parts Upper left step cover 8405225-C1100

Built to withstand repeated foot pressure (up to 220kg per step) and daily wear, the step cover uses a high-performance composite material: 65% polypropylene (PP) reinforced with 35% glass fiber. This combination delivers a tensile strength of 300 MPa, impact resistance of 14 kJ/m² (even at -35°C low temperatures), and heat resistance up to 105°C—suitable for enduring summer sunlight and winter road salt exposure. The cover’s understructure features 6mm-thick reinforcing ribs (spaced 50mm apart) that distribute load evenly across the step frame, preventing cracking or deformation even under uneven foot pressure (e.g., when carrying tools while stepping). Finite Element Analysis (FEA) testing confirms it endures 180,000+ step cycles (equivalent to 12 years of daily use) without permanent damage, outperforming thin plastic covers that fail after 2–3 years

Designed to prevent slips during entry/exit (critical for wet, icy, or muddy conditions), the step cover’s top surface integrates two anti-slip mechanisms. First, a raised hexagonal texture (2.5mm depth) creates maximum friction between work boots and the cover, even when wet—reducing slip risks by 75% compared to smooth surfaces. Second, the surface is coated with a wear-resistant polyurethane (PU) layer (1.8mm thickness) that enhances grip and resists abrasion from heavy-duty boots (maintaining texture integrity after 50,000 +cycles). Four 10mm-diameter drainage holes (located at each corner) channel rainwater, mud, or snow away from the surface, preventing pooling that causes slippage in winter. The cover’s edges are rounded (R6mm radius) to avoid catching on clothing or damaging shoes, further improving safety for frequent entry/exit—common in delivery or construction truck operations

Engineered to match the Dongfeng VR’s cab design and enhance functionality, the step cover features a color-matched finish and integrated sealing. The outer surface is pre-painted with a UV-stabilized polyester coating that matches the VR’s factory cab colors (white, red, or gray), maintaining a uniform, professional appearance and resisting fading for 6+ years (even under direct sunlight). A 3mm-thick EPDM rubber seal is pre-installed along the cover’s rear edge (matching the cab sill contour), creating a watertight barrier that prevents rainwater, dust, or debris from entering the step frame—reducing internal rust and extending the step’s lifespan by 30%. The cover’s low-profile design (25mm thickness) avoids adding unnecessary height to the step, ensuring a smooth transition from the lower step to the upper cover without awkward stepping angles

Designed for hassle-free replacement by fleet technicians or DIY owners, the step cover simplifies installation and upkeep. It includes a complete attachment kit: 4 plastic push clips (pre-installed on the cover’s underside) that snap into the VR’s step frame pre-drilled holes, and 2 M6×20mm stainless steel bolts for additional securement at high-stress areas (e.g., near the step’s front edge). Two laser-etched alignment marks on the cover’s underside line up with reference points on the step frame, reducing installation time to 12–18 minutes—no specialized tools needed, only a Phillips screwdriver for the bolts. Maintenance is minimal: the anti-slip surface can be cleaned with soap and water to remove oil or road grime, and the composite material resists staining. Each unit undergoes load testing, slip resistance verification, and fitment checks, backed by a 24-month warranty against defects (e.g., cracking, coating peeling, clip breakage)