Product Introduction

• Structure: An integrated assembly combining a pneumatic cylinder, hydraulic master cylinder, and advanced pressure control valve. It features a heavy-duty steel housing with a black anti-corrosion finish, a rubber dust boot to protect the push rod, precision-machined aluminum valve components, and quick-connect ports for air and hydraulic lines.

• Performance: Converts compressed air pressure into hydraulic force to significantly reduce pedal effort, enabling smooth clutch engagement and disengagement even during long hauls. The system maintains a progressive force-stroke relationship for driver control, with manual backup if air pressure fails.

Core Function

1. Pedal Effort Reduction: Provides pneumatic power to the hydraulic clutch system, making pedal operation lighter.

2. Smooth Engagement: Ensures consistent, smooth clutch actuation for improved drivability.

3. Redundancy: Manual control remains available if the pneumatic system fails.

4. Durability: Heavy-duty construction withstands high pressure, vibration, and harsh operating conditions.

Clutch Booster WG9725230052 for Sinotruk HOWO – Factory Direct Supply

When your heavy-duty truck fleet depends on reliable clutch engagement, every component matters. The Clutch Booster WG9725230052 is a precision-engineered hydraulic clutch assist device designed specifically for Sinotruk HOWO heavy trucks. As a factory-direct supplier, Mettlead delivers this genuine-quality clutch booster at competitive wholesale pricing — so you can maintain healthy margins while keeping your customers’ trucks on the road.

Whether you’re a regional distributor or a large-scale parts wholesaler, this clutch booster represents one of the most frequently requested hydraulic clutch components in the HOWO aftermarket. Let’s walk you through exactly what makes this part a solid addition to your inventory.

Clutch Booster WG9725230052 – Key Features and Benefits

This isn’t just another replacement part sitting on a shelf. The WG9725230052 clutch booster plays a critical role in reducing pedal effort and ensuring smooth clutch disengagement in heavy-load conditions. Here’s what sets it apart:

• Reduced Driver Fatigue: The pneumatic-hydraulic boost mechanism significantly lowers the force needed to operate the clutch pedal, which is essential for drivers covering long distances.
• Precise Clutch Control: Engineered to deliver consistent hydraulic pressure, this booster ensures clean disengagement every time — even under heavy payloads.
• Durable Construction: Built with high-grade aluminum alloy housing and corrosion-resistant internal seals, it withstands the harsh operating environments that HOWO trucks routinely face.
• Direct OEM Replacement: Matches the original factory specifications of Sinotruk HOWO trucks, so installation is straightforward with no modifications required.
• Wholesale-Friendly Pricing: Factory-direct sourcing from China eliminates middlemen, giving distributors and agents stronger profit margins on every unit sold.

In short, stocking the Sinotruk HOWO clutch booster WG9725230052 means offering your customers a part that performs like OEM — at an aftermarket price point that makes business sense.

Application and Compatible Vehicles

The Clutch Booster WG9725230052 is purpose-built for the Sinotruk HOWO platform. More specifically, it serves as a hydraulic clutch assist component within the clutch actuation system. Below are the primary applications:

• Sinotruk HOWO A7 heavy-duty trucks
• Sinotruk HOWO 371 / 375 / 380HP tractor heads and dump trucks
• Sinotruk HOWO T5G / T7H series (verify by chassis number)
• Other HOWO-platform vehicles using the WG9725230052 clutch hydraulic booster assembly

This part functions as the clutch booster (also called clutch servo or clutch assist cylinder) in the HOWO hydraulic clutch system. It receives hydraulic pressure from the master cylinder and amplifies it using compressed air from the truck’s pneumatic system — converting light pedal input into the powerful force needed to disengage the clutch disc.

Looking for more compatible parts? Browse our full range of Sinotruk HOWO Truck Parts or explore our dedicated Clutch System Parts category.

Technical Specifications – WG9725230052 Clutch Booster

Accurate specs matter when you’re matching parts to customer orders. Here’s the detailed breakdown of this clutch booster:

Need to cross-reference this part number with your existing catalog? Our team can help verify fitment — just contact us with your chassis or VIN details.

OEM / ODM Capability and White-Label Packaging

As a wholesale-focused supplier, Mettlead understands that branding flexibility is a real competitive advantage for distributors. That’s why we offer:

• White-Label Packaging: Receive the WG9725230052 clutch booster in neutral boxes — ready for your own branding and market positioning.
• Custom Packaging: Need your company logo, part number cross-reference, and barcode on each box? We can arrange that with reasonable MOQs.
• Strict Quality Control: Every batch undergoes pressure testing and seal integrity inspection before shipment. We maintain consistency so your customers keep coming back.
• Flexible MOQ: Whether you need a trial order of 10 pieces or a container load, we structure deals that work for your cash flow.
• Fast Lead Times: Most standard orders ship within 3–7 working days from our warehouse in China.

This means you can build your own brand identity around reliable Chinese truck parts — without investing in manufacturing infrastructure. We handle production and quality; you handle the market.

Frequently Asked Questions – Clutch Booster WG9725230052

What does the clutch booster WG9725230052 actually do?

Think of it as a force multiplier. The clutch booster takes the relatively light hydraulic pressure generated when a driver presses the clutch pedal and amplifies it using compressed air. This amplified force then pushes the release bearing to disengage the clutch. Without a properly functioning booster, the pedal becomes extremely heavy — making the truck nearly impossible to drive comfortably.

How do I know if my customer’s clutch booster needs replacement?

There are several telltale signs. If the clutch pedal suddenly feels much harder than usual, or if there’s a delay between pressing the pedal and the clutch actually disengaging, the booster is likely failing. Air leaking from the booster housing or hydraulic fluid seeping around the unit are also clear indicators that internal seals have worn out.

Is this an OEM part or aftermarket?

This is a high-quality aftermarket replacement manufactured to match OEM specifications. It’s designed as a direct drop-in for the original WG9725230052, so no modifications are needed during installation. The performance characteristics — boost ratio, stroke, and pressure handling — are equivalent to the factory-fitted unit.

Can I mix this clutch booster with other clutch hydraulic components from different suppliers?

Technically yes, as long as the mating components (clutch master cylinder, hydraulic lines, and release bearing) are in good working condition and match HOWO system specs. However, for best results, we recommend replacing worn seals and checking fluid condition in the entire clutch hydraulic circuit whenever a booster is swapped.

What’s the typical lifespan of this clutch booster?

Under normal operating conditions, a quality clutch booster should last between 150,000 and 300,000 km — depending on driving style, payload frequency, and whether the truck’s air system is properly maintained. Contaminated air supply (oil or moisture in the pneumatic lines) is the number-one factor that shortens booster life.

Do you offer any warranty on this part?

Yes. Mettlead provides a standard quality warranty on all clutch system components. If a unit fails due to manufacturing defects within the warranty period, we replace it. Reach out to our team for specific warranty terms based on your order volume.

Ready to Stock the WG9725230052 Clutch Booster?

If you’re looking for a dependable supply of Sinotruk HOWO clutch booster WG9725230052 at factory-direct pricing, you’ve found the right partner. Mettlead serves distributors and wholesalers across Africa, the Middle East, Southeast Asia, and South America — with proven logistics and flexible payment terms.

Here’s how to move forward:

1. Request a Quote: Tell us your target quantity and delivery destination.
2. Receive Your Offer: We’ll respond within 24 hours with unit pricing, lead time, and shipping options.
3. Confirm and Ship: Once payment is arranged, your order enters production queue and ships on schedule.

Contact us now to request pricing or ask any technical questions about the WG9725230052 clutch booster. You can also explore our complete Sinotruk Truck Parts catalog to see what else you can add to your order.