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The AZ9719230229 Washer is a premium, heavy-duty chassis fastening component engineered specifically for SINOTRUK Howo trucks, providing reliable load distribution and secure clamping force for critical bolted joints throughout the chassis assembly. As a trusted supplier of genuine Sinotruk howo parts, we offer this OEM-grade washer as a direct replacement for the original factory unit. The AZ9719230229 washer ensures correct contact area, stable preload retention and dependable operation on Howo A7, T7H, HOWO 371 and HOWO 380 models.
Manufactured from high-strength hardened steel, precision-stamped dimensions and a corrosion-resistant surface treatment, the Washer is built to exact OEM specifications. Its robust construction maintains correct thickness and flatness, resists crushing under high bolt torque, and provides dependable performance under the constant vibration, shock and thermal cycling of commercial truck operation.
OEM AZ9719230229 • Hardened steel • Corrosion resistant • Vibration resistant • Direct OEM fit
The AZ9719230229 Washer is a critical fastening component in the chassis system of SINOTRUK Howo trucks. It sits beneath the bolt head or nut to distribute the clamping load over a wider area, protect the mating surface from damage and maintain correct bolt preload under vibration and thermal cycling.
This AZ9719230229 washer is precision-manufactured to exact OEM dimensions. The outer diameter provides the correct bearing area, the inner diameter fits the bolt shank with minimal clearance, and the thickness is controlled for consistent preload. The surface is hardened and treated for corrosion resistance.
Common signs that a washer needs replacement include visible crushing or deformation, corrosion pitting, cracks radiating from the hole, loss of bolt torque, oil leaks at sealed joints and loosening of critical chassis fasteners. Fitting a new washer restores correct clamping force and joint integrity.
Whether you are repairing a loose chassis joint, replacing a damaged washer or carrying out preventive maintenance on a fleet of Howo trucks, the AZ9719230229 Washer delivers the quality, reliability and durability that SINOTRUK Howo professionals expect.
The AZ9719230229 Washer is designed for SINOTRUK Howo trucks, with primary compatibility across the A7, T7H, HOWO 371 and HOWO 380 series. It is a direct OE replacement, so it fits the original bolt and nut assembly on the chassis without modification.
This washer is essential in applications where reliable chassis fastening and joint integrity are critical, such as long-haul transport, construction, mining and municipal service. In these duties, the washer must maintain correct preload and resist vibration, shock loads, heat and corrosion.
When replacing the washer, it is recommended to inspect the bolt, nut, mating surface and surrounding components for wear or damage. The AZ9719230229 is designed to work with the factory chassis assembly, ensuring correct clamping force and reliable operation.
For fleets with multiple HOWO trucks, standardising on the AZ9719230229 Washer simplifies chassis repair inventory and ensures the correct part is available for scheduled maintenance or emergency repairs.
Replacing the AZ9719230229 Washer is a simple procedure that requires basic hand tools and attention to bolt torque. This work can be performed by a qualified technician or experienced owner-operator. Begin by safely supporting the component being fastened.
Loosen and remove the bolt or nut, then withdraw the old washer. Clean the mating surface and inspect for damage or corrosion. Check the bolt threads and nut for wear before reinstallation.
Place the new washer over the bolt shank, ensuring it sits flat against the mating surface. Reinstall the bolt or nut and tighten it to the correct OEM torque using a calibrated torque wrench. Verify the joint is secure.
For ongoing maintenance, periodically check critical chassis bolts for correct torque and inspect washers for crushing or corrosion. If a joint loosens repeatedly, inspect the threads and mating surface before replacing the washer again.
The AZ9719230229 Washer is manufactured in an ISO 9001-certified facility using high-strength steel and precision stamping processes. Raw materials are sourced from certified suppliers and undergo incoming inspection for hardness, thickness and chemical composition.
Each washer is stamped on precision presses and then heat-treated and surface-treated for correct hardness and corrosion resistance. The inner and outer diameters are verified against the OEM gauge, and the thickness is measured for consistency. Every unit is inspected for cracks, burrs and flatness before packing.
Random samples from each production batch undergo load and corrosion testing to validate long-term reliability in heavy-duty truck applications. These tests ensure the washer continues to perform under the constant clamping and vibration loads experienced by SINOTRUK Howo vehicles.
We back the AZ9719230229 with a comprehensive 12-month warranty against material and workmanship defects. Our rigorous quality control ensures that every washer delivers the same fit, function and durability as the original factory component.
The AZ9719230229 Washer is a vital small component for maintaining secure chassis fastening, correct bolt preload and long-term joint integrity on your Howo truck. A worn or corroded washer causes loss of clamping force, loosening of critical bolts and potential component failure.
Manufactured from high-strength hardened steel with a corrosion-resistant finish, the AZ9719230229 offers outstanding reliability, load distribution and long-term durability. Its direct-fit design ensures straightforward installation and immediate compatibility with the factory chassis assembly.
Fleet operators benefit from reduced chassis repair downtime, lower maintenance costs and improved vehicle safety. Owner-operators gain peace of mind knowing their critical fasteners are secured by a washer that meets strict OEM standards and is backed by a comprehensive warranty.
Order the AZ9719230229 Washer today and keep your SINOTRUK Howo chassis joints secure for years to come.
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