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Sitrak VGD71 Steering Shaft Assembly (880,1679-225)
Sitrak VGD71 Steering Shaft Assembly (880,1679-225)
2025-05-04
Sitrak Truck Steering Knuckle Assembly (Right)
Sitrak Truck Steering Knuckle Assembly (Right)
2025-05-04

Sitrak Truck Steering Knuckle Assembly (Left)

Sitrak Steering Knuckle Assembly (Left)
Sitrak Truck Steering Knuckle Assembly (Left)
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What is the Sitrak Truck Steering Knuckle Assembly (Left)

  • Sitrak Truck Steering Knuckle Assembly (Left): Precision Engineering for Heavy-Duty Steering Control​
  • The Sitrak Truck Steering Knuckle Assembly (Left) is a critical front-end component designed to deliver precise steering response, robust load-bearing capacity, and long-lasting durability for commercial vehicles. Engineered for the left side of heavy-duty trucks and buses, this assembly integrates four key components—Upper Bushing, Steering knuckle (left), Unidirectional Seal, and Lower Bushing—to ensure seamless articulation, minimal friction, and protection against environmental contaminants.​
  • Core Structure: Steering Knuckle (Left)​
  • At the heart of the assembly is the Steering knuckle (left), a forged high-strength steel component shaped to connect the wheel hub, tie rod, and suspension system. Its precision-machined design features mounting points for the upper and lower control arms, ensuring optimal alignment and load distribution. The knuckle’s heat-treated surface resists deformation under heavy steering forces, making it ideal for vehicles navigating tight turns, uneven terrain, or high-speed highways.​
  • Smooth Articulation with Upper and Lower Bushings​
  • The Upper Bushing and Lower Bushing are strategically positioned to facilitate smooth rotational movement between the steering knuckle and the front axle. Crafted from self-lubricating composite materials or sintered bronze, these bushings reduce friction while absorbing vibrations and shocks. Their engineered tolerances ensure minimal play, enhancing steering precision and reducing tire wear. The upper bushing supports axial loads during steering input, while the lower bushing stabilizes radial forces, creating a balanced system for responsive handling.​
  • Protection with Unidirectional Seal​
  • A Unidirectional Seal is integrated into the bushing housing to safeguard internal components from dust, water, and road debris. Made from oil-resistant NBR rubber with a reinforced steel core, this seal allows lubricant to remain within the bushing while blocking contaminants. Its single-directional design prevents pressure buildup during articulation, ensuring consistent lubrication and extending the service life of the bushings and knuckle. This feature is critical for vehicles operating in harsh environments, where exposure to moisture or grit can degrade steering performance.​
  • Design for Heavy-Duty Reliability​
  • The assembly’s modular design enables straightforward installation and maintenance, with the upper and lower bushings replaceable without disassembling the entire knuckle. The unidirectional seal’s robust construction resists cracking and wear, even after years of exposure to UV rays, temperature fluctuations, and chemical contaminants. Together, these components ensure the steering knuckle maintains optimal alignment, reducing strain on the suspension and braking systems while enhancing driver control and safety.​
  • SEO-Optimized Features for Commercial Fleets​
  • Keyword Integration: Prioritizes “Steering Knuckle Assembly (Left)”, “Upper Bushing”, “Lower Bushing”, and “Unidirectional Seal” to target technical searches and parts replacement queries.​
  • Technical Benefits: Highlights load-bearing capacity, friction reduction, and contaminant protection to address fleet managers’ concerns about downtime and maintenance costs.​
  • Application Focus: Emphasizes compatibility with heavy-duty trucks and buses, appealing to operators of commercial vehicles that require durable steering solutions.​
  • In summary, the Sitrak Truck Steering Knuckle Assembly (Left) combines rugged construction, precision components, and intelligent sealing technology to deliver unmatched steering performance. Whether for long-haul trucks, delivery fleets, or industrial machinery, this assembly ensures stable, responsive handling while withstanding the rigors of daily operation. Trust in Sitrak’s engineering expertise to keep your fleet steering smoothly and safely, mile after challenging mile.

Product Parameters of Sitrak Truck Steering Knuckle Assembly (Left)

AZ4071410014 Sitrak Truck Steering Knuckle Assembly (Right)
Serial No. Drawing No.NameQuantity
1WG4071415021Upper Bushing1
2AZ4071410012Steering knuckle (right)1
3WG4005416508Unidirectional Seal1
4WG4071415022Lower Bushing1

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