Product Introduction

This Air Dryer Assembly WG9000360571 is a high-performance OEM air dryer unit for heavy-duty trucks and commercial vehicles. It features a compact, integrated design with a replaceable desiccant cartridge, precision pressure regulation valves, and a corrosion-resistant housing, engineered to deliver reliable moisture removal and system protection in heavy-load operations.

Performance

• Efficient Moisture Removal: This heavy-duty air dryer assembly uses a high-capacity desiccant cartridge to effectively remove moisture, oil, and contaminants from compressed air, preventing freeze-ups and corrosion in brake lines as a high performance air dryer unit.

• Precise Pressure Control: Built-in pressure regulation valves maintain consistent system pressure, ensuring reliable and balanced brake operation under all load and road conditions.

• Durable Construction: The robust aluminum valve block and impact-resistant housing resist vibration, temperature fluctuations, and road debris, extending service life in harsh undercarriage environments and making it a reliable replacement air dryer assembly.

• Seamless Compatibility: Optimized for heavy-duty truck pneumatic brake systems, it is ideal as an air dryer assembly for commercial vehicles.

Core Function

1. Removes moisture and contaminants from compressed air, protecting the pneumatic brake system from corrosion, freeze-ups, and component failure—a critical part of heavy duty truck brake parts.

2. Maintains consistent system pressure, ensuring stable and reliable braking performance under heavy loads and long downhill runs.

3. Extends the service life of pneumatic components by ensuring dry, clean air for operation.

Air Dryer Assembly WG9000360571 Sinotruk – OEM Heavy-Duty Truck Air Dryer Unit

When your heavy-duty truck’s braking system demands consistent, moisture-free compressed air, the Air Dryer Assembly WG9000360571 Sinotruk delivers exactly that. Engineered specifically for Sinotruk HOWO commercial vehicles, this OEM-grade air dryer unit actively removes water vapor, oil mist, and contaminants from your pneumatic system — protecting valves, cylinders, and brake components from corrosion and premature wear. As a result, your fleet stays on the road longer with fewer unplanned maintenance stops.

At Mettlead, we supply this genuine-spec air dryer assembly directly from our factory in China, which means you get competitive wholesale pricing without sacrificing quality. Whether you’re sourcing for fleet maintenance, vehicle assembly lines, or aftermarket distribution, this unit is ready to ship.

Key Features and Benefits of Air Dryer Assembly WG9000360571

This Sinotruk air dryer assembly isn’t just another replacement part — it’s a precision-engineered system component that safeguards your entire pneumatic braking circuit. Here’s what makes it stand out:

• Replaceable Desiccant Cartridge: The integrated desiccant cartridge efficiently absorbs moisture from compressed air, and when it’s time for service, you simply swap it out — no special tools required.
• Precision Pressure Regulation Valves: Built-in regulation valves maintain optimal system pressure, ensuring consistent brake response even under heavy-load conditions.
• Corrosion-Resistant Housing: The rugged outer shell withstands harsh operating environments, from dusty construction sites to humid coastal roads, extending the unit’s service life significantly.
• Compact Integrated Design: Despite its powerful performance, this assembly features a space-saving form factor that fits seamlessly into the Sinotruk HOWO chassis layout.
• Reliable Moisture Removal: By eliminating water and oil contamination before they reach downstream components, this air dryer prevents ice blockages in cold climates and corrosion damage year-round.
• OEM-Matched Specifications: Every dimension, port connection, and performance parameter matches the original Sinotruk factory specifications, so installation is straightforward and hassle-free.

In other words, choosing this air dryer assembly means choosing fewer breakdowns, lower maintenance costs, and a braking system you can trust under the toughest conditions.

Technical Specifications – Air Dryer Assembly WG9000360571 Sinotruk

Application Scenarios – Where Does This Air Dryer Assembly Fit?

The Air Dryer Assembly WG9000360571 is designed to serve multiple purposes across the Sinotruk heavy-duty truck range. Specifically, it’s ideal for the following scenarios:

• Compatible Truck Models: Sinotruk HOWO A7, HOWO T7H, SITRAK C7H, and other Sinotruk heavy-duty series equipped with pneumatic braking systems.
• New Vehicle Assembly: OEMs and assembly plants use this unit for original production line installation on Sinotruk chassis.
• Fault Replacement: When your existing air dryer shows signs of failure — such as excessive moisture in brake lines, frequent compressor cycling, or audible air leaks — this assembly serves as a direct drop-in replacement.
• Scheduled Maintenance & Overhaul: Fleet managers proactively replace air dryer assemblies during routine service intervals to prevent unexpected downtime on long-haul routes.
• Air Supply System Upgrades: Workshops upgrading or rebuilding the complete pneumatic circuit rely on this assembly for dependable moisture control.

Explore more braking system components or browse our full range of Sinotruk HOWO truck parts to find everything you need in one place.

OEM/ODM Capability – Tailored to Your Business Needs

At Mettlead, we understand that every market has unique requirements. That’s why we offer flexible OEM and ODM services for the Air Dryer Assembly WG9000360571 and our entire Sinotruk parts catalog:

• White-Label Packaging: We can ship with neutral packaging or your own branded boxes — perfect for distributors building their own aftermarket brand identity.
• Custom Packaging Solutions: Need specific labeling, barcodes, or multilingual instructions? Our team handles it all before shipment.
• Strict Quality Control: Every air dryer assembly undergoes rigorous inspection and pressure testing at our facility, ensuring zero-defect delivery to your warehouse.
• Factory-Direct Pricing: By eliminating middlemen, we pass significant cost savings directly to you — giving your business a competitive edge in your local market.
• Flexible MOQ: Whether you need a single sample for testing or a container load for bulk distribution, we accommodate orders of all sizes.

Moreover, we welcome international buyers to visit our facility in China for on-site inspection and quality verification. Seeing is believing, and we’re confident our operations will exceed your expectations.

Frequently Asked Questions – Air Dryer Assembly WG9000360571

What does the Air Dryer Assembly WG9000360571 actually do in the truck?

This air dryer assembly sits between the air compressor and the brake system reservoirs. Its primary job is to remove moisture, oil vapor, and particulate contaminants from compressed air before they enter the braking circuit. Without it, water accumulation could cause valve corrosion, ice blockages in winter, and ultimately brake failure.

How do I know when the Air Dryer Assembly WG9000360571 needs replacement?

Common signs include excessive water draining from air tanks, frequent compressor cycling, audible air leaks near the dryer unit, or reduced braking efficiency. Additionally, if the desiccant cartridge no longer regenerates properly during purge cycles, it’s time to replace the entire assembly.

Is this air dryer assembly a direct fit for my Sinotruk HOWO truck?

Yes. The WG9000360571 is manufactured to OEM specifications, meaning all mounting points, port connections, and electrical connectors align perfectly with original Sinotruk HOWO installations. No modifications are needed — it’s a true bolt-on replacement.

How often should the desiccant cartridge inside this air dryer be replaced?

Under normal operating conditions, the desiccant cartridge should be inspected every 12 months or according to your truck manufacturer’s recommended service intervals. In extremely humid or dusty environments, more frequent replacement may be necessary to maintain optimal drying performance.

Can this air dryer assembly handle extreme temperature conditions?

Absolutely. The WG9000360571 is engineered for heavy-duty commercial applications, which means it performs reliably in both extreme heat and sub-zero temperatures. The built-in heater element (where applicable) prevents ice formation during cold-weather operation, ensuring uninterrupted air supply to your brakes.

What’s the difference between this assembly and just replacing the desiccant cartridge?

Replacing only the cartridge addresses moisture absorption capacity, but it doesn’t fix worn valves, damaged seals, or corroded housings. If your air dryer has been in service for several years or shows external damage, replacing the complete assembly (WG9000360571) ensures all internal components — valves, seals, heater, and cartridge — are fresh and functioning as designed.

Ready to Order? Get Your Air Dryer Assembly WG9000360571 Today

Don’t let a failing air dryer compromise your fleet’s safety and uptime. The Air Dryer Assembly WG9000360571 Sinotruk is in stock and ready for fast, reliable global shipping — backed by Mettlead’s factory-direct pricing and strict quality guarantee.

Whether you need a competitive quote, bulk pricing, or technical confirmation for your specific truck model, our team is here to help. We offer flexible and secure payment methods, and our experienced export team ensures smooth delivery to your door.

Take the next step:
Contact us now to request a quote or ask any questions about this air dryer assembly. You can also explore our complete Sinotruk truck parts catalog to source all your heavy-duty truck components from one trusted supplier.