Sinotruk Howo and Shandeka Series Heavy Truck Balance Shaft Housing (Model: AZ9925520372/2)

This product is a balance shaft housing specially designed for Sinotruk Howo, Shandeka, and other series heavy trucks. Model number AZ9925520372/2. As a core load-bearing component of the heavy truck chassis suspension system, it directly determines the load-bearing capacity and operational stability of the suspension system. It is suitable for the long-distance, heavy-load, and complex road conditions of heavy trucks. It can directly replace old or damaged original parts without additional adaptation or modification. It precisely matches the original vehicle dimensions, ensuring the normal operation of the chassis system.

I. Model Identification (Precise Correspondence, Original Factory Fit)

[P_ [START] Model: AZ9925520372/2: This is the original factory standard model, precisely corresponding to specific configurations of Sinotruk Howo and Sinotruk Shandeka series heavy trucks. The model identification is clear and easy to identify, facilitating parts selection, procurement, and replacement, effectively avoiding compatibility issues caused by model confusion, and ensuring perfect matching with original vehicle balance shafts, bearings, and other components without the need for secondary processing or adjustment.

Product Name: Balance Shaft Housing: As the core protective and load-bearing housing of the balance shaft system, it is a key component connecting the chassis suspension and supporting the vehicle body load. Its quality directly affects the driving safety of heavy trucks and the service life of the chassis. It is developed and manufactured strictly according to Sinotruk's original factory technical standards, and its quality is consistent with original factory parts.

II.Core Functions (Bearing and Protection, Stable Operation)

**Protecting Core Components:** As a dedicated housing for the balance shaft, it precisely houses the balance shaft, bearings, oil seals, and other core components, forming a sealed protective space. This effectively isolates rainwater, dust, mud, and road debris during operation, preventing wear, corrosion, or damage to internal components and ensuring the normal operation of the balance shaft system.

**Bearing Load and Buffering Impact:** It bears the weight of the truck body and cargo load during driving, as well as the impact forces generated by road bumps, rapid acceleration, and sudden braking. It effectively disperses load pressure, alleviates damage to the suspension system from impacts, and prevents deformation or breakage of the housing due to excessive load, ensuring the structural integrity of the chassis suspension system. Structural strength.

Ensuring suspension system stability: Providing a stable installation reference for the balance shaft and bearings, ensuring precise positioning and smooth operation of all components, avoiding problems such as misalignment and swaying, thereby ensuring the stability of the suspension system, reducing vehicle body bumps during heavy truck driving, improving ride comfort, and reducing the wear frequency of chassis components.

Auxiliary sealing and dust prevention: The housing precisely fits with the oil seal and bearing seat, and together with the sealing components, achieves a good sealing effect, preventing lubricating oil leakage, while blocking external impurities from entering the interior, ensuring that components such as the balance shaft and bearings operate in a sufficiently lubricated and clean environment, extending the service life of core components.

III. Product Structural Features (Precision Manufacturing, Durable and Robust)

Superior Material, Impact and Fatigue Resistance: Made of high-quality, high-strength ductile iron in a single casting. Ductile iron is characterized by uniform density, excellent toughness, and high hardness. Through rigorous heat treatment, the shell's impact and fatigue resistance are significantly improved, allowing it to withstand repeated impacts from heavy truck loads and complex road conditions for extended periods without easily deforming or cracking.

Integrated Design, High Precision and Excellent Sealing: The shell integrates key structures such as bearing seats and oil seals, eliminating the need for additional splicing and assembly. The compact structure and precise positioning ensure a tight fit with the bearings and oil seals after installation, providing excellent sealing and effectively preventing lubricant leakage. Impurities are introduced, while frictional wear between components is reduced, improving operational stability.

Anti-corrosion treatment, extending service life: The shell surface undergoes professional anti-corrosion treatment (galvanizing or painting process), forming a dense protective coating that effectively resists rainwater, corrosive gases, road salt, etc., preventing rust and corrosion. It is suitable for heavy truck outdoor and complex environment driving needs, significantly extending product service life.

Precision workmanship, strong adaptability: Adopting high-precision casting and processing technology, the shell size, hole diameter, mounting hole position, etc. strictly follow the original factory standards, with errors controlled within a reasonable range. The surface is smooth without burrs or sand holes, with high installation fit. It can directly replace the original parts without the need for Chassis modifications are not required, and installation is convenient and efficient.

IV. Compatible Vehicle Models (Precise Matching, No Adaptation Required)

This product is specifically designed for Sinotruk series heavy-duty trucks, precisely compatible with the following models equipped with disconnectable balance shafts: Sinotruk Howo T7H, Sinotruk C7H, Sinotruk C9H, Howo J7G, Howo N7G, and other mainstream heavy-duty truck models, covering different years and heavy-load configurations of this series. It can be directly connected to the original chassis suspension system, ready to install out of the box, providing a convenient and reliable solution for vehicle maintenance and parts replacement.

Additional Notes: This product uses independent protective packaging to effectively avoid damage such as bumps, scratches, and deformation during transportation; it comes with detailed installation instructions, with clear and easy-to-understand steps, allowing even those without professional repair experience to complete the installation by following the instructions. Furthermore, the product undergoes strict factory quality testing to ensure that every product meets usage standards, providing a solid guarantee for the safe operation of heavy-duty truck chassis.