Product Introduction

Structure

This front leaf spring bolt is a precision-formed high-strength U-bolt, featuring a U-shaped profile with two parallel, threaded legs. It is manufactured from premium-grade carbon steel or alloy steel, with a uniform diameter throughout the bend and legs. The entire component is coated with a silver-gray zinc or Dacromet finish, providing excellent corrosion resistance. The threaded ends are precision-cut to standard pitch, ensuring compatibility with corresponding nuts and washers for secure clamping.

Performance

Crafted from high-strength steel and subjected to controlled heat treatment, this U-bolt delivers exceptional tensile strength and fatigue resistance, capable of withstanding the extreme clamping forces required to secure heavy-duty truck leaf springs. The corrosion-resistant coating offers superior protection against rust, salt spray, and chemical exposure, ensuring long-term durability in diverse operating environments. It maintains its structural integrity in temperatures ranging from -40°C to 120°C, resisting hydrogen embrittlement and fracture under repeated loading and vibration.

Core Function

1. Securely clamps the front leaf spring assembly to the axle housing, maintaining proper alignment and load distribution between the spring and axle.

2. Transmits vertical and lateral loads from the leaf spring to the axle, ensuring stable suspension performance and vehicle handling.

3. Prevents lateral movement and shifting of the leaf spring under heavy loads and dynamic driving conditions, reducing the risk of component failure and improving safety.

Bolt For Front Leaf Spring WG9925520230 Sinotruk – OEM Quality, Factory Direct Price

When your heavy-duty truck hits the road under extreme loads, every single fastener matters. The Bolt For Front Leaf Spring WG9925520230 is engineered specifically for Sinotruk HOWO heavy trucks, securing the front leaf spring assembly with precision and durability that keeps your fleet running safely. As a critical chassis fastener, this bolt endures constant vibration, heavy stress, and harsh road conditions — so choosing a reliable, OEM-spec replacement isn’t optional, it’s essential.

At Mettlead, we supply this genuine-spec front leaf spring bolt directly from our factory in China, giving you access to competitive pricing without compromising on quality. Whether you’re managing a fleet in Africa, the Middle East, Southeast Asia, or South America, we deliver the exact part you need — fast, affordable, and backed by strict quality control.

Key Features and Benefits of WG9925520230 Front Leaf Spring Bolt

This isn’t just another bolt. It’s a purpose-built fastener designed to handle the unique demands of heavy truck suspension systems. Here’s what sets it apart:

• OEM Part Number: WG9925520230 — ensures direct fitment and eliminates guesswork during installation.
• High-Strength Material: Manufactured from premium alloy steel with heat treatment for superior tensile strength and fatigue resistance.
• Corrosion-Resistant Surface: Treated with anti-rust coating to withstand moisture, road salt, and harsh environmental exposure.
• Precision Threading: Machined to exact OEM tolerances, providing secure clamping force and preventing loosening under vibration.
• Extended Service Life: Engineered to endure repeated stress cycles, reducing replacement frequency and lowering your maintenance costs.
• Direct Replacement: Drops right into the original mounting position — no modifications, no adapters, no downtime.

In other words, this bolt does exactly what it should: hold your front leaf spring firmly in place, mile after mile, load after load.

Technical Specifications

Application Scenarios: Where Does This Bolt Work?

The WG9925520230 bolt is specifically designed to fasten the front leaf spring on Sinotruk HOWO heavy-duty trucks. It plays a vital role in the chassis suspension system by clamping the leaf spring pack securely to the front axle bracket.

Compatible Vehicle Models

• Sinotruk HOWO 6×4 Dump Trucks
• Sinotruk HOWO 8×4 Cargo Trucks
• Sinotruk HOWO Tractor Heads
• Sinotruk HOWO Mixer Trucks
• Other HOWO-series vehicles using WG9925520230 in the front suspension

Typical Use Cases

Fleet maintenance workshops rely on this bolt during routine suspension overhauls. When a front leaf spring shows signs of fatigue, cracking, or sagging, technicians replace the entire spring pack — and the fastening bolts must be renewed simultaneously to ensure safe clamping force. Additionally, if you notice uneven tire wear, steering drift, or clunking noises from the front axle area, worn or stretched leaf spring bolts could be the culprit.

For more Sinotruk chassis and suspension components, browse our complete Chassis Parts Category or explore the full Sinotruk HOWO Parts Collection.

OEM/ODM Capability and Custom Packaging

We understand that different markets have different needs. That’s why Mettlead offers flexible options beyond standard supply:

• White-Label Packaging: Need to sell under your own brand? We provide neutral or custom-branded packaging tailored to your specifications.
• Custom Packaging Design: From individual poly bags with part number labels to full-color retail boxes — we accommodate your branding requirements.
• Strict Quality Control: Every batch undergoes dimensional inspection, hardness testing, and surface quality checks before shipment.
• Bulk Order Support: Whether you need 100 pieces or 10,000, our factory scales production to meet your demand without sacrificing lead time.

As a factory-direct supplier, we cut out the middlemen. This means you get genuine OEM-quality parts at prices that protect your margins — a critical advantage for procurement managers balancing cost and reliability.

Why Source WG9925520230 From Mettlead?

• Factory Direct Pricing: No agents, no markups — just honest wholesale rates straight from the source.
• Complete Parts Range: We stock thousands of Sinotruk, SITRAK, Shacman, FAW, Weichai, Dongfeng, and Foton parts under one roof.
• Fast and Reliable Delivery: Established logistics partnerships ensure your order reaches you on schedule, wherever you are.
• Flexible Payment Methods: We support T/T, L/C, Western Union, and other secure payment channels to suit your business.
• Visitor-Friendly: You’re welcome to visit our facility in China for inspection and face-to-face discussions.

Explore our full range of Sinotruk Truck Parts to find everything you need in one place.

Frequently Asked Questions (FAQ)

What is the function of the WG9925520230 bolt?

This bolt serves as the primary fastener for the front leaf spring assembly on Sinotruk HOWO trucks. It clamps the leaf spring pack to the axle mounting bracket, maintaining proper suspension alignment and load distribution. Without a properly torqued, high-strength bolt in this position, the leaf spring can shift or loosen — leading to dangerous handling issues.

How do I know when to replace the front leaf spring bolt?

You should inspect and consider replacing this bolt if you notice any of the following signs: visible corrosion or pitting on the bolt surface, thread damage or stretching, looseness even after re-torquing, abnormal noises from the front suspension, or uneven tire wear. As a best practice, always replace leaf spring bolts whenever you install a new leaf spring pack.

Is this bolt made to OEM specifications?

Yes. The WG9925520230 bolt we supply is manufactured to match the original Sinotruk factory specifications — including material grade, dimensions, thread pitch, and surface treatment. It fits directly without any modification.

Can I use this bolt on other truck brands?

This bolt is specifically designed for Sinotruk HOWO models that use part number WG9925520230. While some Chinese truck brands share similar suspension designs, we strongly recommend verifying the OEM part number against your vehicle’s parts catalog before ordering. If you need help cross-referencing, our team is happy to assist.

What material is this bolt made from?

It’s manufactured from high-strength alloy steel that undergoes quenching and tempering heat treatment. This process gives the bolt excellent tensile strength, fatigue resistance, and toughness — all critical properties for a fastener that endures constant dynamic loads in a truck suspension system.

Do you offer bulk pricing for large orders?

Absolutely. We provide tiered pricing based on order quantity. The more you order, the better your unit cost. Reach out to our sales team with your required quantity, and we’ll prepare a competitive quotation within 24 hours.

Ready to Secure Your Supply? Get a Quote Today

Stop overpaying for basic chassis fasteners. Whether you need a small trial order or a container-load of Sinotruk suspension parts, Mettlead is your reliable factory-direct partner in China.

Take the next step: Send us your part number, required quantity, and destination — and we’ll respond with a detailed quotation, lead time, and shipping options within one business day.

Contact Us Now to Request Your Free Quote →