Product Introduction

This rubber support is a multi-layered elastomer buffer component designed for heavy-duty truck chassis and suspension systems. It features a stacked, corrugated black rubber core sandwiched between two rigid gray metal mounting plates. The top plate is equipped with a central hexagonal nut for preload adjustment, and both plates have pre-drilled mounting holes for chassis attachment. A circular certification label and barcode sticker are affixed for easy identification and traceability.

Performance

Manufactured from premium-grade, oil-resistant synthetic rubber, this support offers exceptional vibration damping, shock absorption, and resistance to aging and abrasion. It operates reliably in temperatures ranging from -40°C to 120°C, resisting degradation from road contaminants, oil, and UV exposure. The multi-layered, corrugated design provides progressive stiffness, effectively isolating vibrations and absorbing impact loads while maintaining structural integrity under heavy loads.

Core Function

1. Serves as a critical vibration-isolating and load-supporting component in chassis and suspension systems, absorbing and dissipating road impacts and vibrations to ensure a smooth, stable ride.

2. Acts as a buffer between the chassis and heavy components, protecting metal parts from direct contact and reducing wear, fatigue, and noise.

3. Provides progressive load support, maintaining proper ride height and suspension geometry under varying load conditions.

4. Enhances overall vehicle comfort and control by reducing noise, vibration, and harshness (NVH) transmitted to the cabin.

Rubber Support WG9725520278 – OEM Sinotruk Chassis Buffer Mount | Factory Direct

When your heavy-duty Sinotruk fleet demands reliable chassis protection, every buffer component matters. The Rubber Support WG9725520278 is a precision-engineered, multi-layered elastomer mount designed to absorb road shock, reduce frame vibration, and extend the service life of your truck’s suspension system. Sourced directly from our factory, this genuine-spec chassis buffer delivers OEM-grade performance at a competitive wholesale price — so you can keep your trucks running without breaking your procurement budget.

Key Features & Benefits of Rubber Support WG9725520278

This isn’t just another rubber pad — it’s a carefully constructed vibration-damping solution built to handle the punishing conditions of heavy-duty trucking. Here’s what sets it apart:

• Multi-Layered Corrugated Rubber Core: The stacked elastomer design distributes impact forces evenly, preventing concentrated stress points that lead to premature cracking.
• Dual Rigid Metal Mounting Plates: Gray-finished steel plates on top and bottom provide a stable, corrosion-resistant interface between the rubber core and the chassis frame.
• Central Hexagonal Nut for Preload Adjustment: Fine-tune compression to match your specific load requirements, ensuring optimal damping performance across varying cargo weights.
• Pre-Drilled Mounting Holes: Bolt-on installation means no modifications needed — this part drops right into your existing Sinotruk chassis mounting points.
• Certification Label & Barcode Sticker: Every unit ships with full traceability markings, making inventory management and quality verification effortless for your warehouse team.
• Extended Service Life: High-grade natural rubber compound resists UV degradation, oil exposure, and temperature cycling from -40°C to +80°C.

In short, this rubber support keeps your cab comfortable, your chassis intact, and your maintenance costs predictable. That’s a win for any fleet procurement manager watching the bottom line.

Technical Specifications

Application Scenarios – Where Does This Rubber Support Fit?

If you’re sourcing chassis buffer components for your workshop or distribution business, here’s exactly where the WG9725520278 Rubber Support belongs:

Compatible Vehicle Models

• Sinotruk SITRAK C7H / T7H heavy-duty tractors
• Sinotruk HOWO A7 / T7 series trucks
• Sinotruk HOWO heavy-duty dump trucks and mixers
• Other Sinotruk models using the WG9725520278 chassis mount specification

Common Replacement Scenarios

• Aging & Hardening: Over time, rubber compounds lose elasticity due to UV exposure and heat cycling. When your drivers report increased cabin vibration, it’s time to inspect these mounts.
• Cracking & Delamination: Visible cracks or separation between rubber layers and metal plates indicate structural failure — replace immediately to prevent chassis damage.
• Routine Maintenance: Proactive fleet managers replace chassis buffer mounts every 150,000–200,000 km as part of scheduled preventive maintenance programs.
• Accident Repair: After undercarriage impacts or overloading events, these mounts should be inspected and replaced if deformed.

Whether you’re stocking parts for a repair workshop in Africa, managing a fleet in Southeast Asia, or distributing Sinotruk spares across the Middle East, this rubber support is a high-demand, fast-moving SKU that your customers need. Explore our full range of SITRAK heavy-duty truck parts for more chassis and suspension components.

OEM/ODM Capability – Your Brand, Our Quality

At Mettlead, we understand that distributors and fleet operators often need more than just a part number. That’s why we offer flexible customization options:

• White-Label Packaging: Receive parts in neutral packaging, ready for your own branding and resale.
• Custom Packaging: Add your company logo, part numbers, and barcodes to every box — perfect for building brand recognition in your local market.
• Strict Quality Control: Every batch undergoes hardness testing, dimensional inspection, and compression load verification before shipment.
• Bulk Order Flexibility: Whether you need 50 pieces or 5,000, our production line scales to meet your demand with consistent lead times.

We also welcome factory visits. If you’d like to see our quality control process firsthand, our team is ready to host you at our facility in China. Browse our complete Sinotruk SITRAK truck parts full category guide to plan your next bulk order efficiently.

Frequently Asked Questions – Rubber Support WG9725520278

What exactly does the Rubber Support WG9725520278 do in the truck?

This rubber support acts as a vibration-damping buffer between the chassis frame and mounted components. Its multi-layered rubber core absorbs road shocks and prevents metal-to-metal contact, which protects both the frame structure and the driver’s comfort over long hauls.

How do I know when this rubber support needs replacement?

Look for visible signs like cracking, hardening, or delamination of the rubber layers. Operationally, increased cabin vibration, unusual clunking noises from the chassis, or uneven tire wear can all indicate worn buffer mounts. A quick visual inspection during routine servicing usually reveals the condition.

Is this an OEM-spec part or aftermarket?

This rubber support is manufactured to OEM specifications matching the original Sinotruk part number WG9725520278. It uses the same material grades, dimensions, and hardness ratings as the factory-installed component, ensuring direct bolt-on fitment without modifications.

Can I adjust the preload on this rubber support?

Yes. The central hexagonal nut on the top plate allows you to adjust the compression preload. This is particularly useful when your trucks carry varying loads — tightening the nut increases stiffness for heavier payloads, while loosening it provides softer damping for lighter runs.

What is the minimum order quantity (MOQ)?

We offer flexible MOQs depending on your needs. For standard stocked items like the WG9725520278, we can ship as few as 10 pieces for trial orders. Volume discounts apply for larger quantities — simply contact us with your required quantity for a tailored quote.

Does this part fit HOWO and SITRAK models equally?

The WG9725520278 is primarily specified for Sinotruk platforms that share this chassis mounting configuration. However, always cross-reference the part number with your specific vehicle’s parts catalog, as mounting dimensions can vary between model years. Our team can help you verify compatibility if you provide your VIN or chassis number.

Ready to Secure Your Supply? Let’s Talk.

You’ve found the right part — now let’s get it to your warehouse. As a factory-direct supplier of Sinotruk, SITRAK, HOWO, and SHACMAN truck parts, Mettlead delivers competitive pricing, fast lead times, and reliable global shipping to keep your business moving.

Here’s what happens when you reach out:

1. Tell us your required part numbers and quantities.
2. Receive a detailed quotation within 24 hours.
3. Confirm your order with flexible, secure payment options.
4. Track your shipment from our factory to your door.

Don’t let aging chassis components slow down your fleet or your business. Contact us now to request pricing on the Rubber Support WG9725520278 — or send us your full parts list for a bundled quote. You can also explore our braking system parts catalog for related chassis and suspension components.

Mettlead — Your Trusted Factory-Direct Source for Chinese Heavy-Duty Truck Parts, Worldwide.