Dongfeng VR truck parts Right front pillar guard assembly 5402010-C1152

Built to shield the right front A-pillar from road debris, minor collisions, and daily wear (critical for maintaining cab structural integrity), the guard assembly uses a dual-material structure. The core layer is 2mm-thick glass-fiber reinforced plastic (GFRP) with a tensile strength of 280 MPa, providing rigidity to resist bending. The outer layer is 1mm-thick thermoplastic olefin (TPO) with impact resistance (passing -30°C low-temperature impact testing without cracking) to absorb energy from stone strikes or accidental bumps. Reinforced ribs (5mm height) are molded along the guard’s inner edge at 200mm intervals, distributing impact force across the A-pillar and preventing localized damage. Unlike thin plastic guards that crack or warp, this composite design endures 80,000+ km of rough road use while protecting the underlying pillar from scratches, dents, or rust

Designed to resist corrosion from rain, road salt, and UV exposure (common in front pillar areas), the assembly undergoes comprehensive protective treatment. The GFRP core is coated with a polyester resin primer (60μm thickness) that seals fiber pores and prevents moisture intrusion. The TPO outer layer is infused with UV-stabilizers and anti-aging additives, maintaining flexibility and color stability for 7+ years (resisting fading even after 2,500 hours of UV exposure). All plastic clips and metal mounting hardware are made of 304 stainless steel (for clips) and zinc-plated steel (for bolts), resisting rust and ensuring long-term attachment strength. The guard’s inner surface features a foam adhesive strip (3mm thickness) that creates a moisture barrier between the guard and A-pillar, preventing water from seeping into the cab. Unlike unprotected guards that degrade quickly, this design ensures durability in all weather conditions

Engineered to enhance cab comfort by reducing wind noise and preventing water intrusion, the assembly includes integrated sealing elements. A 15mm-wide EPDM rubber seal is molded along the guard’s top edge (matching the windshield frame’s contour), creating a tight seal that blocks wind noise (reducing cabin noise by 12% at highway speeds) and prevents rainwater from dripping into the cab. The bottom edge features a flexible TPO flange that overlaps the right front door’s weatherstrip, eliminating gaps where wind or dust could enter. The foam adhesive strip on the inner surface also acts as a vibration damper, reducing resonance between the guard and A-pillar during driving. Unlike basic guards that only provide protection, this design improves overall driving comfort by addressing noise and sealing issues

Designed for hassle-free replacement by fleet technicians or DIY owners, the assembly simplifies installation with a hybrid attachment system (clips + bolts) and user-friendly features. It includes 8 plastic push clips (pre-installed on the guard’s inner surface) that snap into the VR’s A-pillar pre-drilled holes, and 4 M5×10mm self-tapping bolts for additional securement at high-stress areas (e.g., near the door hinge). Two laser-etched alignment lines on the guard’s inner surface line up with marks on the A-pillar, ensuring precise positioning in 10–15 minutes. No specialized tools are needed—only a Phillips screwdriver for the bolts. The guard’s edges are deburred and rounded to avoid injury during installation, and the outer surface is pre-finished to match the VR’s cab color (available in white, red, or gray). Each unit undergoes fitment testing, impact resistance checks, and seal performance verification, backed by a 24-month warranty against defects (e.g., clip breakage, material cracking, color fading)