Product Introduction

Structure

This engine front rubber support is a composite component with an integrated cast aluminum housing and a high-damping rubber core. The housing is precision-cast from high-strength aluminum alloy, featuring two raised cylindrical mounting bosses and internal reinforcing ribs for structural rigidity. The rubber core is vulcanized between the outer housing and a central steel mounting plate, which includes a threaded hole for engine attachment. The entire assembly is designed for direct bolt-on installation, with the aluminum housing providing a rigid mounting interface and the rubber core providing vibration isolation.

Performance

The aluminum housing offers exceptional strength and corrosion resistance, while the rubber core is formulated from high-grade natural rubber to deliver excellent vibration damping and resistance to fatigue. The assembly maintains consistent performance in temperatures ranging from -40°C to 120°C, with the rubber core resisting ozone degradation and the aluminum housing providing long-term durability under heavy-duty operating conditions.

Core Function

1. Isolates the engine from the chassis, significantly reducing the transmission of vibrations and noise to the cabin, improving driver comfort and reducing fatigue.

2. Absorbs and dissipates the energy from engine operation and road impacts, protecting the engine and chassis components from premature wear and fatigue.

3. Provides a secure and stable mounting point for the engine, maintaining precise alignment and optimal performance.

4. Extends the service life of the engine and chassis components, reducing maintenance costs and downtime for heavy-duty trucks and engineering vehicles.

Engine Front Rubber Support WG9925590280 – Sinotruk Sitrak OEM Mount

Every heavy-duty engine needs a reliable anchor. The Engine Front Rubber Support WG9925590280 is purpose-built for Sinotruk Sitrak trucks, acting as the critical cushion between your powertrain and the chassis frame. Without a properly functioning engine mount, vibrations travel unchecked through the cab, accelerating wear on surrounding components and shortening service life. This OEM-spec rubber support absorbs those forces quietly and consistently, so your fleet keeps rolling with minimal downtime.

At Mettlead, we supply this front engine mounting pad directly from our factory in China — meaning you get genuine-quality fitment at a competitive factory-direct price. Whether you manage a transport fleet in Africa, the Middle East, or Southeast Asia, this page gives you every technical detail you need to order with confidence.

Key Features and Benefits of the WG9925590280 Engine Front Rubber Support

Precision Vibration Damping

The primary job of this front engine rubber mount is to absorb and isolate vibrations generated by the diesel engine during operation. High-grade rubber compounds flex under load without cracking, effectively reducing the energy that reaches the truck frame and cab. As a result, drivers experience less fatigue, and adjacent parts — such as coolant hoses, wiring harnesses, and exhaust brackets — suffer far less stress.

OEM-Grade Material Composition

This support pad is manufactured using reinforced natural rubber bonded to a steel mounting plate. The rubber formulation resists heat aging, oil contamination, and ozone degradation — three enemies that commonly destroy inferior aftermarket mounts. Consequently, you can expect a service life that matches or exceeds the original factory part.

Direct-Fit for Sinotruk Sitrak Trucks

Engineered to match the exact bolt pattern and dimensional tolerances of the Sitrak chassis, this mount drops into place without modification. That means faster installation, fewer labor hours, and zero guesswork for your workshop technicians.

Cost-Effective Fleet Maintenance

Because we ship directly from our production facility, there are no middlemen inflating the price. Fleet operators and spare-parts distributors alike benefit from bulk pricing that keeps per-unit costs low — without sacrificing the quality your trucks demand.

Application Scenario – Where This Part Works

The WG9925590280 engine front rubber support is specifically designed for the following application:

• Compatible Vehicle: Sinotruk Sitrak series heavy-duty trucks (C7H, G7, etc.)
• Mounting Position: Front engine mount (between the engine block front bracket and the chassis longitudinal rail)
• Function: Cushions the engine against the frame, dampening vibration and preventing metal-to-metal contact during acceleration, braking, and rough-road operation
• Replacement Trigger: Visible rubber cracking, excessive engine movement, increased cabin vibration, or oil-soaked deterioration of the existing mount

In real-world conditions — think long-haul routes across uneven terrain or stop-and-go urban delivery cycles — this rubber support quietly protects your powertrain investment day after day. Moreover, replacing a worn mount early prevents misalignment issues that could damage the gearbox input shaft or radiator mounts down the line.

Looking for more Sitrak chassis and suspension components? Browse our full Chassis Parts Category or explore the complete Sitrak Heavy-Duty Parts catalog.

Technical Specifications

For a comprehensive overview of every Sitrak system and sub-assembly we cover, visit our Sinotruk Sitrak Truck Parts Full Category Guide.

OEM / ODM Capability

White-Label and Custom Packaging

If you run your own brand or distribution network, Mettlead offers flexible packaging solutions. We can ship with neutral labels, your private brand artwork, or mixed packaging per your market requirements. This helps you build brand equity in your region while sourcing at factory cost.

Strict Quality Control

Every batch of engine mounts undergoes dimensional inspection, rubber hardness testing, and bonding-strength verification before leaving our facility. We follow a multi-point QC protocol that mirrors OEM standards — because a failed engine mount on a loaded truck is not just an inconvenience, it is a safety risk.

Factory Visit Welcome

Transparency builds trust. We welcome procurement teams to visit our production site in China, inspect our processes firsthand, and discuss long-term supply agreements face to face. Many of our current partners started with exactly that kind of visit.

Frequently Asked Questions

What are the signs that the WG9925590280 engine front rubber support needs replacement?

The most common indicators include visible cracks or tears in the rubber body, excessive engine movement when accelerating or braking, increased vibration felt in the cab, and oil contamination that has softened the rubber compound. If you notice any of these symptoms, replacing the mount promptly prevents secondary damage to adjacent components.

Is this rubber support an exact OEM replacement for Sitrak trucks?

Yes. The WG9925590280 is manufactured to match the original equipment dimensions, bolt spacing, and rubber hardness specifications. It installs directly onto the Sitrak chassis without any drilling, trimming, or adapter brackets.

How does rubber quality affect the lifespan of an engine mount?

Inferior rubber compounds harden and crack prematurely under heat and ozone exposure. Our mounts use a natural rubber blend specifically formulated for high-temperature underhood environments, which resists aging far better than generic synthetic alternatives. Consequently, you get longer service intervals and fewer unplanned replacements.

Can I order this part in bulk for fleet maintenance or resale?

Absolutely. Mettlead specializes in wholesale and bulk supply for fleet operators, spare-parts distributors, and trading companies. Volume pricing is available, and we can arrange scheduled shipments to match your consumption rate.

How should I store engine rubber supports before installation?

Store them in a cool, dry environment away from direct sunlight, ozone sources (electric motors, welding equipment), and petroleum solvents. Ideally, keep them in their original packaging until you are ready to install. Proper storage preserves rubber elasticity and extends shelf life significantly.

Ready to Secure Your Supply?

Getting the right engine front rubber support at the right price should not be complicated. Tell us your required quantity, preferred packaging, and delivery destination — and our team will respond with a detailed quotation within 24 hours.

Contact Us Now to request pricing, confirm stock availability, or ask any technical questions about the WG9925590280 and other Sitrak heavy-duty truck parts. We are here to keep your trucks — and your business — moving forward.