Sinotruk HOWO Series Heavy Truck Steering Knuckle Arm

This product is a pair of Sinotruk HOWO series heavy truck steering knuckle arms (English: Steering Knuckle Arm), also known as steering arm, tie rod arm, or T-arm. It is a core component of the heavy truck steering system, directly determining the vehicle's steering accuracy, handling stability, and driving safety. It is suitable for the long-distance, heavy-load, and complex road conditions of heavy trucks. It is developed and manufactured in strict accordance with the original factory standards and can directly replace old or damaged original parts without additional adaptation or modification. It accurately matches the original vehicle size, providing a solid guarantee for the stable and efficient operation of the steering system.

I. OE Number and Product Alias ​​(Accurate Correspondence, Original Factory Adaptation)

See OE number: Core adapter OE numbers are AZ9719410005, AZ9719410040, AZ9719410041, etc. Different numbers correspond to the left and right steering knuckle arms respectively. The markings are clear and easy to identify, facilitate quick identification, selection, procurement, and replacement, effectively avoiding compatibility errors caused by model confusion. It ensures perfect compatibility with the original vehicle's steering system, steering knuckle, steering gear, and other components, requiring no secondary processing or adjustment; it can be installed directly out of the box, significantly improving maintenance and replacement efficiency.

Product aliases: Commonly known as steering arm, tie rod arm, etc.T-arm refers to this product, exclusively compatible with the steering system of Sinotruk Howo series heavy trucks. It is the core carrier for steering force transmission, and its quality directly affects steering accuracy, response speed, and driving safety. It is manufactured strictly according to Sinotruk's original technical parameters, and its quality is completely consistent with the original parts, combining compatibility and reliability.

II. Core Functions (Force Transmission Steering, Precise Protection)

Transmitting steering force to achieve vehicle steering: As the core force transmission component of the steering system, it precisely connects the steering gear and the steering knuckle, smoothly and efficiently transmitting the steering force output by the steering gear to the steering knuckle, thereby driving the wheels to turn precisely, achieving flexible vehicle steering, and ensuring that the driver's steering operation can be quickly responded to." Feeding power to the wheels ensures smooth and precise steering.

Withstands alternating loads and adapts to complex working conditions: Made of high-strength ductile iron, precision-cast and professionally heat-treated, it possesses excellent strength, rigidity, and impact resistance. It can withstand the alternating loads, steering impacts, and additional forces from road bumps generated during heavy truck operation for extended periods, and is not prone to deformation, cracking, or breakage. It is suitable for the heavy-duty and complex road conditions required for heavy truck use.

Ensures steering precision and improves handling stability: Utilizing precise hole and angle design, the hole dimensions, spacing, and installation angle strictly adhere to original factory standards, with errors controlled within a reasonable range, ensuring proper fit with the steering gear and steering knuckle.Precise and error-free connection ensures the transmission accuracy and response speed of the steering system, effectively avoiding problems such as steering jerking and deviation, and improving vehicle handling stability and driving safety.

Protects the steering system and extends component life: Through precise force transmission and stable support, it reduces uneven force distribution among various components of the steering system, avoiding component wear caused by force transmission deviation. Simultaneously, it possesses excellent wear resistance and fatigue resistance, effectively protecting the steering gear, steering knuckle, and other related components, extending the overall service life of the steering system.

III. Product Structure and Material Characteristics (Precision Manufacturing, Durable and Robust)

Superior Materials, Outstanding Strength: Utilizing high-quality, high-strength materials..." Made of ductile iron through precision casting, the steering knuckle arm boasts uniform density, excellent toughness, and high hardness. Underwent rigorous heat treatment (quenching and tempering) to further enhance its impact resistance, fatigue resistance, and deformation resistance. It can withstand repeated testing under complex working conditions for extended periods, minimizing wear, cracking, and breakage, thus ensuring steering safety.

Precision machining ensures high accuracy: Manufactured through precision casting, CNC machining, grinding, and polishing, the surface is smooth, burr-free, and free of sand holes. Hole positions and angles are precisely positioned with minimal dimensional errors, ensuring a perfect fit and connection with the steering gear tie rod and steering knuckle. This eliminates the risk of loosening after assembly, guaranteeing smooth steering transmission and rapid response.

Pair-mount design, strong adaptability: This product is a pair-mount configuration, with precise alignment of the left and right steering knuckle arms, perfectly adapting to the installation requirements of the left and right steering systems of heavy trucks. Each pair corresponds to a different OE number, directly replacing a single or paired damaged original steering knuckle arm without additional accessories. It is compatible with multiple Howo models, offering strong versatility and convenient installation.

Corrosion and wear resistance, extended lifespan: The surface undergoes professional anti-corrosion treatment (galvanizing, painting, or electrophoresis), forming a dense protective coating that effectively resists the erosion of rainwater, dust, mud, corrosive gases, and road salt, preventing the steering knuckle arms from rusting and corroding. It is suitable for the complex outdoor driving environments of heavy trucks, significantly extending the product's service life.

IV. Suitable for..." Vehicle Model Matching (Precise Matching, No Adaptation Required)

This product is specifically designed for Sinotruk HOWO series heavy-duty trucks, precisely matching the following models: Sinotruk HOWO A7, Sinotruk HOWO T7H, HOWO 336, HOWO 371, HOWO, and other mainstream heavy-duty truck models, covering different years and heavy-duty configurations of this series. Different OE numbers correspond to the left and right steering knuckle arms, allowing direct connection to the original vehicle steering system. It perfectly matches the installation dimensions of the steering gear and steering knuckle, and can be installed out of the box, providing a convenient and reliable solution for vehicle maintenance and parts replacement.

Additional Notes: This product uses independent protective packaging, with each pair individually sealed to effectively avoid damage such as bumps, scratches, and deformation during transportation.It comes with detailed installation instructions, the steps are clear and easy to understand, even those without professional repair experience can complete the installation by following the instructions. Furthermore, the product undergoes rigorous factory quality testing, and each unit meets usage standards, providing strong support for the safe and stable operation of the heavy-duty truck steering system.