Product Introduction

This U-bolt is a heavy-duty fastening component designed for heavy-duty truck suspension systems. It features a U-shaped, high-strength steel bolt with a blue anti-corrosion coating, paired with two precision-threaded hexagonal nuts. The robust design ensures secure clamping of suspension components under extreme loads and harsh operating conditions.

Performance

• Manufactured from high-grade alloy steel for exceptional tensile strength and resistance to shear forces.

• The blue anti-corrosion coating provides long-term protection against rust and environmental damage, extending service life.

• Precision threads ensure a secure, uniform clamping force, preventing loosening under vibration and dynamic stress.

• Operates reliably in temperatures ranging from -40°C to 120°C, suitable for all heavy-duty operating conditions.

Core Function

1. Serves as a critical fastening component in suspension systems, securely clamping leaf springs to the axle housing.

2. Transmits and distributes suspension loads evenly, maintaining proper axle alignment and vehicle stability.

3. Withstands extreme loads generated by heavy loads, off-road conditions, and dynamic suspension movement.

4. Contributes to overall vehicle safety and reliability by preventing component separation and maintaining suspension integrity.

U-bolt AZ9925520268 Sinotruk – Heavy-Duty Suspension Fastener for HOWO & SITRAK Trucks

When your heavy-duty truck’s suspension demands uncompromising clamping force, the U-bolt AZ9925520268 Sinotruk delivers exactly that. Engineered specifically for Sinotruk’s flagship platforms, this U-shaped fastener secures rear-axle leaf spring assemblies under extreme payloads and punishing road conditions. Consequently, fleet operators and maintenance workshops worldwide trust this OEM-grade component to keep their trucks running safely and efficiently. As a factory-direct supplier with over 10 years of experience, Mettlead offers this genuine-spec U-bolt at competitive bulk pricing with fast, reliable delivery.

Key Features & Benefits of U-bolt AZ9925520268

Superior Material Strength

Manufactured from high-strength alloy steel (Grade 8.8+), this U-bolt AZ9925520268 Sinotruk withstands sustained tensile loads exceeding 800 MPa. As a result, it resists fatigue cracking even after hundreds of thousands of kilometers under full payload.

Blue Anti-Corrosion Coating

A specialized blue zinc-chromate surface treatment protects the bolt from moisture, road salt, and chemical exposure. This means your U-bolt maintains structural integrity in tropical humidity, desert heat, or harsh winter conditions alike.

Precision-Threaded Hex Nuts Included

Each U-bolt ships with two precision-machined hexagonal nuts that ensure uniform torque distribution. Therefore, installation technicians achieve consistent clamping force without the risk of thread stripping or uneven loading.

OEM-Matched Dimensions

The AZ9925520268 matches Sinotruk’s original equipment specifications down to the millimeter. This guarantees a perfect fit without modifications, reducing workshop labor time and eliminating compatibility guesswork.

Cost-Effective Fleet Maintenance

Because Mettlead sources directly from certified factories in China, you receive genuine-quality U-bolts at 30–50% below typical aftermarket pricing. In other words, your per-vehicle maintenance budget stretches significantly further.

Technical Specifications – U-bolt AZ9925520268 Sinotruk

Application Scenarios for U-bolt AZ9925520268

This Sinotruk U-bolt is purpose-built for the following real-world applications:

• New Vehicle Assembly: OEMs and assembly plants use AZ9925520268 to secure rear-axle leaf spring packs during original truck production on HOWO, T7H, and SITRAK lines.
• Damage Replacement: When existing U-bolts crack, corrode, or deform under overload conditions, this part serves as a direct drop-in replacement that restores full suspension clamping force.
• Chassis Overhaul & Maintenance: During scheduled fleet maintenance or comprehensive chassis rebuilds, technicians replace U-bolts preventively to ensure continued safe operation under heavy loads.

Compatible truck models include, but are not limited to:

• Sinotruk HOWO A7 / HOWO T5G
• Sinotruk T7H
• SITRAK C7H / C5H
• Sinotruk HOWO heavy-duty dump trucks and tractor units

Looking for more Sinotruk components? Browse our complete Sinotruk HOWO Truck Parts catalog or explore our full Sinotruk Parts range. You can also find related suspension and fastener components in our Chassis Parts category.

OEM/ODM Capabilities

At Mettlead, we understand that different markets have different requirements. That’s why we offer flexible manufacturing and branding solutions for the U-bolt AZ9925520268 Sinotruk and our entire product range:

• White-Label Packaging: We supply U-bolts in neutral packaging so you can apply your own brand identity for local distribution.
• Custom Packaging: Need branded boxes, specific labeling, or barcode requirements? Our team accommodates your exact packaging specifications.
• Strict Quality Control: Every batch undergoes dimensional inspection, hardness testing, and coating thickness verification before shipment. As a result, defect rates remain below 0.3%.
• Bulk Order Flexibility: Whether you need 100 pieces or 10,000+, our factory scales production to meet your timeline without compromising quality.
• Visitor-Friendly Facility: We welcome procurement managers to visit our warehouse and partner factories in China for firsthand quality verification.

Frequently Asked Questions – U-bolt AZ9925520268 Sinotruk

What is the exact function of U-bolt AZ9925520268 in the truck suspension?

The U-bolt AZ9925520268 clamps the leaf spring pack firmly to the rear axle housing. In essence, it transfers the vehicle’s load from the chassis frame through the springs to the axle. Without properly torqued U-bolts, the leaf springs can shift, causing dangerous axle misalignment and accelerated tire wear.

Is this U-bolt an original Sinotruk part or an aftermarket replacement?

Mettlead supplies OEM-spec U-bolts manufactured to the exact dimensions, material grade, and coating standards as the original Sinotruk part number AZ9925520268. They are functionally identical to factory-installed components and fit without any modification.

What torque specification should be applied during installation?

For the AZ9925520268 U-bolt, Sinotruk’s service manual typically recommends a torque range of 450–550 N·m for the hex nuts. However, always refer to the specific vehicle’s workshop manual, as torque values may vary slightly between HOWO, T7H, and SITRAK models.

How can I tell if my truck’s U-bolts need replacement?

Common signs include visible rust or pitting on the bolt surface, elongation of the U-bolt legs, cracking near the bend radius, or loosening nuts that cannot maintain torque. Additionally, if you notice uneven tire wear or hear clunking sounds from the rear suspension, worn U-bolts are often the culprit.

Does the blue coating affect the U-bolt’s mechanical performance?

Not at all. The blue zinc-chromate coating is specifically designed to provide corrosion resistance without reducing the bolt’s tensile strength or fatigue life. In fact, by preventing surface corrosion, the coating actually helps maintain the bolt’s full load-bearing capacity over a longer service life.

What is the minimum order quantity for U-bolt AZ9925520268?

Mettlead offers flexible MOQs to suit both small repair shops and large fleet operators. For specific pricing tiers and volume discounts, we recommend contacting our sales team directly with your required quantity.

Ready to Secure Your Supply of U-bolt AZ9925520268 Sinotruk?

Every day without reliable suspension fasteners is a day your fleet risks costly downtime. Mettlead combines factory-direct pricing, strict quality control, and fast international shipping to keep your trucks on the road where they belong.

Here’s how to get started:

1. Tell us your required quantity and destination country.
2. Receive a competitive quotation within 24 hours.
3. Approve the order and choose your preferred secure payment method.
4. Receive your U-bolts with full tracking and documentation.

👉 Contact Us Now to request your free quote on U-bolt AZ9925520268 Sinotruk. Our team is standing by to support your procurement needs with professional service and expert technical guidance.