Product Descreiption
The Dongfeng Truck Kingpin Repair Kit is a comprehensive solution designed to restore the steering and suspension performance of Dongfeng heavy-duty trucks by replacing worn or damaged kingpin components. The kingpin assembly is critical for ensuring precise steering control, load stability, and safe vehicle handling, especially in commercial trucks operating under heavy loads or harsh conditions. This OEM-quality repair kit simplifies maintenance and reduces downtime by providing all necessary parts for a complete kingpin overhaul.
Key Applications
- Compatible Dongfeng Truck Models:
- EQ140, EQ145, EQ153, EQ1168, EQ1250, EQ2102, and other 6×4, 8×4, or 4×2 cargo trucks, dump trucks, buses, and military/special-purpose vehicles with front steering axles.
- Ideal for vehicles experiencing steering play, uneven tire wear, or alignment issues due to kingpin wear.
- Industrial Use:
- Fleet maintenance, truck repair workshops, and aftermarket upgrades for older Dongfeng models.
Technical Specifications
- Components Included:
- Kingpin Bolt (Upper & Lower):
- Material: Alloy steel (40Cr or 42CrMo), heat-treated for strength.
- Diameter: ~45–55 mm (1.77–2.17 inches) (varies by model).
- Length: ~180–250 mm (7.09–9.84 inches).
- Kingpin Bushings:
- Material: Bronze or steel-backed bronze alloy.
- Inner Diameter: Matches kingpin bolt diameter.
- Outer Diameter: ~60–70 mm (2.36–2.76 inches).
- Thrust Washers & Shims:
- Material: High-carbon steel (for load distribution).
- Thickness Range: 0.1–1.0 mm (adjustable for alignment).
- Seals & Dust Caps:
- Material: Nitrile rubber (NBR) or polyurethane (for water/dirt exclusion).
- Size: Custom-fit to kingpin housing.
- Nuts, Bolts, & Fasteners:
- Grade 8.8 or 10.9 high-tensile steel for secure assembly.
- Kingpin Bolt (Upper & Lower):
- Design Features:
- Precision-Machined Components: Ensures proper fit and alignment.
- Self-Lubricating Bushings: Reduces friction and extends service life.
- Adjustable Shims: Allows fine-tuning of steering geometry.
- Corrosion-Resistant Finishes: Zinc plating or black oxide coating on fasteners.
- Performance Ratings:
- Load Capacity: Supports up to 8–12 tons per kingpin (depending on truck model).
- Operating Temperature: -40°C to +120°C (-40°F to +248°F).
- Service Life: ~300,000–500,000 km (186,000–310,000 miles) under normal use.