Product Introduction

• Structure: An integrated assembly combining a pneumatic cylinder, hydraulic master cylinder, and 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 WG9114230018 for Sinotruk HOWO – OEM-Quality Hydraulic Clutch Assist

When your HOWO truck’s clutch pedal starts feeling heavy or unresponsive, the culprit is often a worn-out clutch booster. The Clutch Booster WG9114230018 is engineered specifically for Sinotruk HOWO heavy-duty trucks, delivering smooth hydraulic clutch assistance that keeps your fleet running without costly downtime. As a result, drivers experience reduced pedal effort and more precise clutch engagement — exactly what long-haul operations demand.

At Mettlead, we supply this genuine-spec clutch booster directly from our factory in China, which means you get OEM-equivalent performance at a competitive factory-direct price. Whether you’re managing a transport fleet in Africa, Southeast Asia, or the Middle East, this part is built to handle the toughest road conditions your HOWO trucks face daily.

Why This Clutch Booster Matters for Your HOWO Truck

The clutch booster serves as the critical link between the driver’s pedal input and the clutch mechanism. In other words, it amplifies hydraulic pressure so the driver doesn’t have to fight a stiff pedal through thousands of gear changes per day. Here’s what the WG9114230018 Clutch Booster delivers:

• Reduced Driver Fatigue – The pneumatic-hydraulic boost mechanism significantly lowers pedal effort, which is especially important during stop-and-go urban driving or mountainous routes.
• Precise Clutch Engagement – Consistent hydraulic output ensures smooth, predictable clutch operation, thereby reducing wear on the clutch disc and pressure plate.
• Heavy-Duty Durability – Internal seals and the cylinder body are manufactured to withstand high operating pressures, extreme temperatures, and vibration typical of heavy truck environments.
• Direct Bolt-On Fitment – Designed as a direct replacement for the OEM part, so installation is straightforward without any modifications to mounting brackets or hydraulic lines.
• Extended Component Life – By maintaining proper assist pressure, this booster protects downstream clutch components from premature failure, ultimately saving you money on repairs.

Technical Specifications – Clutch Booster WG9114230018

Application Scenarios – Compatible Vehicles

This Clutch Booster WG9114230018 is a hydraulic clutch component that fits seamlessly into the following Sinotruk HOWO truck models and configurations:

• Sinotruk HOWO A7 – Heavy-duty tractor heads and cargo trucks
• Sinotruk HOWO 371HP / 375HP – Long-haul logistics and mining transport vehicles
• Sinotruk HOWO Dump Trucks – Construction and quarry operations requiring frequent clutch actuation
• Sinotruk HOWO Mixer Trucks – Concrete delivery vehicles operating in urban traffic

In addition, this part is commonly cross-referenced across HOWO models that use the same clutch hydraulic assembly configuration. If you’re unsure whether this booster fits your specific truck, simply contact us with your VIN or chassis number, and our technical team will confirm compatibility within hours.

Looking for more HOWO clutch system components? Browse our complete Clutch Parts Category or explore the full range of Sinotruk HOWO Truck Parts we carry in stock.

OEM/ODM Capability & Custom Packaging

Mettlead understands that different markets have different branding requirements. That’s precisely why we offer flexible OEM and ODM services for the WG9114230018 Clutch Booster:

• White-Label Packaging – Receive parts in neutral boxes, ready for your own branding and retail distribution.
• Custom Packaging – We can print your company logo, part numbers, and brand colors directly on the packaging, giving your business a professional market presence.
• Strict Quality Control – Every clutch booster undergoes pressure testing, seal integrity checks, and dimensional verification before shipping. Consequently, defect rates remain extremely low.
• Factory Direct Pricing – Since we source and ship directly from China, you bypass middlemen and enjoy wholesale-level margins.

Furthermore, we welcome international buyers to visit our facility for on-site quality inspections. Seeing our production and QC process firsthand gives you complete confidence in what you’re sourcing.

Frequently Asked Questions – Clutch Booster WG9114230018

What are the signs that my HOWO clutch booster needs replacement?

The most common symptoms include a noticeably stiff or heavy clutch pedal, slow clutch disengagement, air leaks around the booster body, or hydraulic fluid seeping from the cylinder seals. If the pedal doesn’t return smoothly to its resting position, that’s also a strong indicator that the internal seals have failed and the booster needs immediate replacement.

Is this WG9114230018 clutch booster identical to the original HOWO part?

Yes, this part is manufactured to OEM specifications, meaning it matches the original in dimensions, thread sizes, hydraulic port connections, and performance output. As a result, it installs directly onto your HOWO truck without any adaptation.

How does the pneumatic-hydraulic clutch booster work?

When the driver presses the clutch pedal, hydraulic fluid pushes into the booster. Simultaneously, compressed air from the truck’s air system amplifies that hydraulic force. This combined action pushes the clutch release mechanism with significantly more force than the driver alone could generate, which makes clutch engagement effortless even under heavy loads.

Can I use this clutch booster on non-HOWO Sinotruk models?

While the WG9114230018 is designed primarily for HOWO series trucks, certain SITRAK or older Steyr-platform Sinotruk models share the same clutch actuation system. However, we strongly recommend confirming your truck’s specific part number before ordering. You can check our full Sinotruk Truck Parts catalog for related components.

What maintenance extends the life of the clutch booster?

Regular inspection of the air supply system is essential — moisture and contaminants in the air lines degrade internal seals over time. Additionally, ensure the hydraulic fluid is changed at recommended intervals and that no air bubbles exist in the hydraulic circuit. Keeping the booster’s external surfaces clean also helps prevent corrosion around the mounting points.

What is the typical lead time for bulk orders?

For in-stock items, we typically ship within 3–5 business days. Larger bulk orders or custom-packaged shipments may require 7–15 days depending on quantity. Either way, we keep you updated throughout the fulfillment process.

Ready to Order Your HOWO Clutch Booster?

Don’t let a failing clutch booster sideline your trucks. Whether you need a single replacement unit or a bulk shipment for your workshop inventory, Mettlead delivers factory-direct quality at prices that protect your margins.

Here’s how to get started:

1. Send us your required quantity and shipping destination.
2. Receive a detailed quotation within 24 hours.
3. Confirm your order and choose your preferred secure payment method.
4. We handle packing, quality inspection, and fast international delivery.

Contact Us Now to request your quote for the Clutch Booster WG9114230018 — our team is ready to support your procurement needs with professional service and reliable supply.