Product Introduction

Structure

This leaf spring pad is a precision-cast ductile iron component designed for heavy-duty truck leaf spring suspension systems. It features a robust, square-shaped body with four corner mounting holes and a central through-hole, optimized for load distribution and installation. The entire component is finished with a matte gray anti-corrosion coating, and the surface is embossed with identification markings for easy recognition and traceability.

Performance

Constructed from high-grade ductile iron, this leaf spring pad offers exceptional structural rigidity, impact resistance, and fatigue strength, capable of withstanding the extreme loads and stresses encountered in heavy-duty operation. The precision-machined mounting holes ensure accurate alignment and secure attachment, while the central through-hole accommodates the leaf spring center bolt. The anti-corrosion coating provides superior protection against rust, salt spray, and chemical corrosion, ensuring long-term durability in diverse operating conditions, with a temperature range of -40°C to 120°C.

Core Function

1. Serves as a load-bearing and protective component in leaf spring suspension systems, distributing the spring load evenly and protecting the chassis frame from wear and impact.

2. Acts as a buffer between the leaf spring and the chassis, absorbing and dampening vibrations generated by road impacts and suspension movement.

3. Maintains proper alignment of the leaf spring, preventing relative displacement under dynamic conditions such as vehicle acceleration, braking, and turning.

Leaf Spring Pad WG9725520244 Sinotruk – OEM-Quality Cushion Pad for Heavy-Duty Trucks

When your Sinotruk heavy-duty truck hits the road under extreme loads, every suspension component matters. The Leaf Spring Pad WG9725520244 sits quietly between your chassis frame and leaf spring assembly, absorbing shocks, reducing metal-to-metal friction, and extending the service life of surrounding components. Engineered to meet Sinotruk OEM specifications, this cushion pad delivers reliable vibration damping mile after mile — so your fleet keeps moving without unexpected downtime.

At Mettlead, we supply this genuine-equivalent leaf spring pad directly from our quality-controlled production lines in China. Whether you manage a transport fleet in Africa, Southeast Asia, or the Middle East, you can count on competitive factory pricing, fast shipping, and a part that fits right the first time.

Key Features and Benefits of the WG9725520244 Leaf Spring Pad

This isn’t just a rubber pad — it’s a critical buffer that protects your truck’s chassis system from premature wear. Here’s what makes the WG9725520244 leaf spring pad a smart investment:

• Precision Shock Absorption: The pad cushions the contact point between the leaf spring and chassis bracket, effectively dampening road vibrations and reducing structural fatigue.
• Minimized Component Wear: By eliminating direct metal contact, this pad significantly slows down corrosion and abrasion on both the spring seat and the frame bracket.
• OEM-Matching Dimensions: Manufactured to exact Sinotruk original specifications, ensuring a seamless drop-in fit without modifications.
• Durable Material Composition: Made from high-density, wear-resistant rubber compound that withstands extreme temperature variations, heavy loads, and prolonged UV exposure.
• Extended Service Intervals: A properly functioning leaf spring pad reduces maintenance frequency and lowers total cost of ownership for your fleet.
• Noise Reduction: The cushioning effect noticeably reduces rattling and squeaking noises from the suspension assembly during loaded operation.

Application Scenarios – Where Does the WG9725520244 Fit?

The Leaf Spring Pad WG9725520244 is specifically designed for the leaf spring suspension system on Sinotruk heavy-duty vehicles, including the popular HOWO and SITRAK series. It serves as the buffer plate  positioned between the spring pack and the axle seat or frame bracket.

In real-world conditions, this part proves essential when your trucks are:

• Hauling heavy cargo on rough, unpaved roads where suspension stress is extreme.
• Operating in mining or construction environments with constant vibration and shock loading.
• Running long-distance logistics routes where consistent ride stability protects both cargo and chassis.
• Navigating urban delivery routes with frequent braking and acceleration cycles that stress the spring assembly.

Compatible vehicle models include Sinotruk HOWO A7, HOWO T7H, SITRAK C7H, and other models using the WG9725520244 part number. If you’re unsure about fitment, our technical team is happy to verify compatibility — simply contact us with your VIN or chassis number.

Looking for more Sinotruk suspension and chassis parts? Browse our full chassis parts category or explore the complete Sinotruk HOWO parts collection.

Technical Specifications

Below you’ll find the detailed parameters for the WG9725520244 leaf spring pad. These specifications ensure you’re ordering the correct part for your specific Sinotruk application:

OEM/ODM Capabilities – Tailored to Your Business Needs

Mettlead understands that different markets have different requirements. That’s why we offer flexible manufacturing and branding solutions for the WG9725520244 leaf spring pad and our broader product range:

• White-Label Packaging: Want to sell under your own brand? We provide clean, professional neutral packaging or print your company logo and part numbers directly on the box.
• Custom Packaging Design: From individual poly bags to branded cartons with bilingual labels, our packaging team adapts to your market preferences.
• Strict Quality Control: Every batch undergoes dimensional verification, material hardness testing, and visual inspection before shipment. We maintain traceable quality records for each production run.
• Bulk and Mixed Orders: Whether you need 100 pieces of a single SKU or a mixed container of Sinotruk chassis parts, we handle both with the same care and efficiency.
• Factory Visit Welcome: We encourage international buyers to visit our facilities in China. Seeing our production lines and QC processes firsthand builds the trust that long-term partnerships require.

For a comprehensive overview of all available Sinotruk components — from engine to chassis to electrical systems — visit our Sinotruk truck parts hub.

Frequently Asked Questions (FAQ)

What is the function of the Leaf Spring Pad WG9725520244?

The WG9725520244 leaf spring pad acts as a rubber cushion buffer between the leaf spring assembly and the chassis frame bracket. Its primary job is to absorb road shocks, dampen vibrations, and prevent direct metal-to-metal contact. As a result, it reduces noise, minimizes wear on both the spring and frame, and helps extend the overall lifespan of your suspension system.

Which Sinotruk truck models does the WG9725520244 fit?

This leaf spring pad is designed for Sinotruk heavy-duty trucks, including the HOWO A7, HOWO T7H, SITRAK C7H, and other models that use the WG9725520244 part number in their leaf spring suspension. If you’re uncertain about compatibility, send us your vehicle’s VIN or model details and we’ll confirm fitment before you order.

How can I tell when the leaf spring pad needs replacement?

Several signs indicate a worn-out leaf spring pad: increased rattling or clunking noise from the suspension area, visible cracking or deterioration of the rubber pad, uneven wear marks on the spring seat or frame bracket, and a general decline in ride smoothness under load. Replacing the pad proactively avoids more costly repairs to the spring or chassis later.

Is this an original Sinotruk part or an aftermarket replacement?

Mettlead supplies OEM-equivalent aftermarket parts manufactured to meet original Sinotruk dimensional and material specifications. This means you get identical fit and performance at a more competitive price point compared to dealer-sourced originals. Every part undergoes strict quality inspection before dispatch.

What is the typical lifespan of this leaf spring pad?

Under normal operating conditions, the WG9725520244 leaf spring pad can last anywhere from 80,000 to 150,000 km, depending on road conditions, load frequency, and climate exposure. Trucks operating on rough terrain or consistently overloaded may require earlier replacement. Regular inspection during scheduled maintenance helps you catch wear before it causes secondary damage.

Can I order the WG9725520244 with custom packaging?

Absolutely. Mettlead offers neutral packaging, white-label options, and fully customized packaging with your brand logo, part numbers, and market-specific labeling. Just let us know your requirements when requesting a quote.

Ready to Order? Get Your Competitive Quote Today

Sourcing the right Leaf Spring Pad WG9725520244 for Sinotruk trucks shouldn’t be complicated. At Mettlead, we make it simple: factory-direct pricing, verified quality, flexible packaging, and reliable worldwide delivery — all backed by a team that understands heavy truck parts inside and out.

Whether you need a trial order or full-container quantities, our sales team is ready to provide pricing, lead times, and shipping solutions tailored to your market.

Take the next step: Contact us now to request a quote, confirm part compatibility, or discuss your bulk requirements. Let’s keep your fleet running at full strength.