30D5-01019 Precise Truck Vehicle Steering Parts Upper Knuckle Bushing

Product Specification

• Medium-to-Heavy Cargo Trucks: Main pivot point protection for commercial freight carriers and long-haul logistics distribution fleets.
• Urban Public Transit Buses: Critical wheel-end sealing for transit passenger coaches experiencing continuous high-frequency turning profiles.
• Vocational Infrastructure Fleets: Environmental shielding for concrete mixers, waste management trucks, and dump trucks running in high-dust job sites.

• High-Durometer Abrasion Barrier: The Shore A 85–90 polyurethane matrix resists abrasive wear caused by the constant rotational friction between the steering knuckle and the axle boss during maneuvering.
• Dynamic Contaminant Exclusion: The specialized flexible sealing lip structure acts as a tight physical barrier, blocking abrasive road sand, fine mud, and high-pressure steam washers from infiltrating the inner needle bearings.
• Excellent Heat Deflection Capacity: The premium elastomeric compound maintains its structural profile up to 120°C, preventing seal degradation or thermal melting caused by heat radiating from nearby air disc or drum brake assemblies.
• Grease Retention Engineering: By maintaining a secure seal around the kingpin shank, the washer keeps grease inside the bearing cavity, preventing premature dry friction wear and reducing routine maintenance intervals.

Company Profile

BEIJING HONGLI FENGTONG TRADE CO., LTD. is a professional company specializing in commercial vehicle spare parts supply, international trade, and supply chain solutions. Originating from a physical auto parts business established in 2000, the company has accumulated over two decades of industry experience and built a strong reputation through reliable products, professional service, and long-term customer relationships.

Our product portfolio includes genuine and premium aftermarket spare parts for leading Chinese commercial vehicle brands such as FOTON, FAW, JAC, SITRAK, HOWO, SHACMAN, DONGFENG, AUMAN, CAMC, BEIBEN, DAYUN, and XCMG. We supply a wide range of components including engine parts, fuel system parts, cooling system components, transmission parts, brake system components, steering system parts, suspension parts, electrical parts, cabin accessories, body parts, chassis components, and maintenance wear parts for heavy-duty trucks, light-duty trucks, construction vehicles, and special-purpose vehicles.

FAQ

• Q1: What brands of commercial vehicle spare parts do you supply?
  A: We supply genuine and premium aftermarket parts for leading Chinese brands, including FOTON, FAW, JAC, SITRAK, HOWO, SHACMAN, DONGFENG, AUMAN, CAMC, BEIBEN, DAYUN, and XCMG.
• Q2: What specific component categories are available in your portfolio?
  A: Our range covers engine parts, fuel/cooling systems, transmission parts, brake/steering systems, suspension, electrical components, cabin accessories, body/chassis parts, and maintenance wear parts.
• Q3: What types of vehicles do your spare parts fit?
  A: Our products are precisely engineered for a wide range of commercial applications, including heavy-duty trucks, light-duty trucks, construction vehicles, and special-purpose vehicles.
• Q4: How does your company ensure product quality and cross-border delivery safety?
  A: Backed by 20+ years of supply chain expertise, we implement strict quality control from sourcing to final dispatch, utilizing export-grade protective packaging to ensure zero-damage transit.
• Q5: Which international markets do you currently export to?
  A: Guided by efficient logistics networks, our commercial vehicle components are exported to distributors and fleet operators across North America, South America, Southeast Asia, the Middle East, Africa, and Central Asia.