Dongfeng KR truck parts Right door skirt assembly 6101632-C5102

Designed to optimize airflow along the truck’s side, the door skirt features a streamlined curved profile that redirects air away from the rear wheel well—reducing aerodynamic drag by 15% compared to trucks without door skirts. Computational Fluid Dynamics (CFD) testing confirms it minimizes turbulence between the door and rear tire, a major source of drag for heavy-duty trucks. This aerodynamic improvement translates to a 3–4% reduction in fuel consumption for long-haul trips (equivalent to ~500L of fuel saved annually for a truck driving 100,000km/year). The skirt’s lower edge is angled 8° upward toward the rear, further smoothing airflow and preventing debris from being kicked up into the door’s lower section. Unlike flat or ill-fitting skirts that increase drag, this design enhances both efficiency and driving stability at highway speeds (60–100km/h)

Built to shield the right door’s lower section from road debris, curbs, and minor impacts, the skirt uses high-grade PP (polypropylene) plastic reinforced with 25% glass fiber. This material delivers exceptional impact resistance (25 kJ/m²) and tensile strength (40 MPa), enabling it to withstand hits from stones, gravel, or accidental curb scrapes without cracking or permanent deformation. The skirt’s surface is treated with a scratch-resistant coating that minimizes visible damage from light impacts, maintaining a clean appearance. Unlike thin ABS plastic skirts that dent or break easily, this reinforced PP design tolerates temperature extremes from -40°C (freezing winters) to 90°C (sun-heated road surfaces) without warping, ensuring reliable protection for 6+ years of heavy use

Engineered to prevent water, mud, or road salt from entering the door’s lower interior (a common cause of door panel rust or electrical component damage), the skirt integrates a multi-layer sealing system. A 10mm-thick EPDM rubber gasket runs along the skirt’s top edge, creating a tight seal against the door’s lower lip—blocking water from seeping into the door cavity during rain or snow. The mounting holes are fitted with rubber washers (included) that seal gaps around bolts, preventing moisture intrusion. Additionally, the skirt’s inner surface has a drainage channel (5mm width) that redirects any trapped water toward the rear, draining it away from the door and chassis. Unlike non-sealed skirts that allow water to damage door internals, this design keeps the door interior dry and extends the lifespan of door locks, wiring harnesses, and window regulators

Designed for hassle-free replacement by fleet technicians or DIY owners, the skirt simplifies installation with precision-aligned features and complete hardware. It includes all necessary components: 8 M6×20mm stainless steel bolts, 8 rubber washers, 4 chassis support brackets, and 2 alignment pins that ensure perfect positioning. The skirt has laser-etched alignment marks that line up with reference points on the door and chassis, eliminating guesswork and reducing installation time by 40% (typically 25–35 minutes). Installation steps are straightforward: attach the support brackets to the chassis, align the skirt’s pins with the door’s mounting holes, secure the bolts (torque to 18 N·m), and verify the seal. Each unit undergoes dimensional verification via CMM, impact testing, and aerodynamic performance checks, backed by a 24-month warranty against defects (e.g., cracking, warping, gasket failure)