Product Introduction

This Air Reservoir 20+5L WG9000360712 is an OEM dual-chamber air storage tank for heavy-duty trucks and commercial vehicles. It features a high-strength steel structure with 20L + 5L combined capacity, integrated mounting brackets, and multi-port design, engineered to supply stable and reliable compressed air for pneumatic brake systems and auxiliary systems.

Performance

• Dualchamber design: Separates main and auxiliary pneumatic circuits, improving safety and system stability.

• Highstrength steel body: Withstands high working pressure, excellent vibration and deformation resistance.

• Anticorrosion surface treatment: Provides long service life in harsh environments like moisture, salt, and dust.

• Precision ports & sealing: Ensures airtightness and no leakage under longterm operation.

• Direct OEM replacement: Matches original mounting position, size, and interface for easy installation.

Core Function

1. Stores compressed air for the vehicle pneumatic system, ensuring stable brake response and continuous air supply.

2. Separates different air circuits to improve safety and avoid total system failure.

3. Stabilizes air pressure and reduces load on the air compressor.

4. Supplies air for braking, suspension, gearbox, and other pneumatic accessories.

Air Reservoir 20+5L WG9000360712 – OEM Dual-Chamber Air Tank for Sinotruk Heavy-Duty Trucks

When your heavy-duty truck’s braking system demands a consistent and reliable air supply, the Air Reservoir 20+5L WG9000360712 steps up to deliver. Engineered specifically for Sinotruk HOWO commercial vehicles, this OEM dual-chamber air storage tank combines a 20-liter primary chamber with a 5-liter auxiliary chamber in one robust unit. As a result, it provides uninterrupted compressed air flow to your pneumatic brake system and auxiliary components — keeping your fleet safe, compliant, and running on schedule. Whether you’re sourcing for assembly line production, routine maintenance, or emergency replacement, this genuine-spec air reservoir offers the durability and precision fit that procurement managers trust.

Key Features & Benefits of the WG9000360712 Air Reservoir

What makes this dual-chamber air reservoir stand out from generic alternatives? Let’s break it down:

• Dual-Chamber Design (20L + 5L): The combined capacity ensures your truck’s brake system and auxiliary pneumatic systems receive independent, stable air pressure — even under demanding operating conditions.
• High-Strength Steel Construction: Built from premium-grade steel, this air tank resists corrosion, withstands high internal pressure, and endures the vibrations of long-haul transport without fatigue cracking.
• OEM-Spec Precision Fit: Manufactured to match the exact dimensions and mounting points of the original Sinotruk part number WG9000360712, so installation is seamless with no modifications required.
• Integrated Mounting Brackets: Pre-welded brackets simplify installation, reduce labor time, and ensure the reservoir sits securely on the chassis frame.
• Multi-Port Configuration: Multiple inlet and outlet ports allow flexible connection to compressors, brake valves, and auxiliary systems — all in one compact unit.
• Strict Quality Control: Every unit undergoes pressure testing and weld inspection before leaving our facility, ensuring zero-defect delivery to your warehouse.
• Factory-Direct Pricing: By sourcing directly from Mettlead, you eliminate middlemen and enjoy competitive wholesale pricing that protects your profit margins.

In other words, this air reservoir doesn’t just store air — it safeguards your entire braking system’s reliability.

Technical Specifications

Below you’ll find the detailed parameters for the Air Reservoir 20+5L WG9000360712 Sinotruk. These specs help you verify compatibility and plan your procurement with confidence:

Application Scenarios – Where Does This Air Reservoir Fit?

Understanding exactly where and how this component serves your fleet is essential for smart procurement decisions. Here’s how the WG9000360712 Air Reservoir 20+5L fits into real-world operations:

• Compatible Truck Models: This air reservoir is designed to fit Sinotruk HOWO heavy-duty truck series, including A7, T7H, and related chassis platforms that use the WG9000360712 specification.
• System Role: It functions as a critical component within the pneumatic air supply system, storing compressed air generated by the engine-driven compressor and distributing it to the service brake circuit and auxiliary systems.
• Assembly Line Installation: Ideal for OEM truck assembly plants that require genuine-spec components delivered in bulk with consistent quality.
• Fault Replacement: When an existing air reservoir develops leaks, corrosion damage, or weld fatigue, this unit serves as a direct drop-in replacement — no re-engineering needed.
• Scheduled Maintenance & Overhaul: Fleet maintenance teams stock this part for preventive replacement during major service intervals, minimizing unexpected downtime on the road.

Consequently, whether you manage a fleet of 10 trucks or supply parts to workshops across multiple countries, this air reservoir meets your operational demands.

OEM/ODM Capability

At Mettlead, we understand that different markets have different requirements. That’s precisely why we offer flexible manufacturing and branding options:

• White-Label Packaging: Want to sell under your own brand? We provide neutral or custom-branded packaging tailored to your market identity.
• Custom Packaging Solutions: From individual carton boxes with your logo to bulk pallet packaging optimized for container shipping — we adapt to your logistics needs.
• Strict Quality Assurance: Every batch undergoes hydrostatic pressure testing, dimensional inspection, and surface quality checks before shipment.
• Flexible Order Quantities: Whether you need a trial order of 50 pieces or a full container load, our production line scales to match your demand.
• Fast Lead Times: With ready stock for popular part numbers and efficient production scheduling, we keep your supply chain moving without delays.

Furthermore, we welcome international buyers to visit our facility for on-site quality audits and production inspections. Seeing is believing, after all.

Frequently Asked Questions – Air Reservoir WG9000360712

1. What is the exact capacity of this air reservoir?

This is a dual-chamber air reservoir with a combined capacity of 25 liters — split into a 20-liter main chamber and a 5-liter secondary chamber. This design allows independent air supply to the primary brake circuit and auxiliary systems simultaneously.

2. Is this air reservoir a direct OEM replacement for Sinotruk HOWO trucks?

Absolutely. The WG9000360712 is manufactured to OEM specifications, meaning it matches the original part’s dimensions, mounting points, and port layout exactly. You can install it without any modifications to the chassis or air lines.

3. What material is the air reservoir made from, and how does it resist corrosion?

The tank body is constructed from high-strength carbon steel, and the exterior receives anti-corrosion surface treatment (paint or electrophoresis coating). This combination protects against rust and environmental degradation, even in humid or salt-spray conditions.

4. What is the maximum working pressure this air reservoir can handle?

The standard working pressure range is 0.8 to 1.2 MPa, while each unit is factory-tested at 1.5 MPa to ensure a safe margin above normal operating conditions. This means you can trust it under peak braking demand.

5. How do I know if this air reservoir fits my specific truck model?

If your truck currently uses part number WG9000360712 — or if your vehicle is a Sinotruk HOWO series (A7, T7H, or equivalent chassis) — this reservoir is compatible. If you’re unsure, simply share your truck’s VIN or current part number with our team, and we’ll confirm fitment for you.

6. Can I order this air reservoir with custom branding or packaging?

Yes. Mettlead offers white-label and custom packaging services. You can have your company logo, part numbers, and branding printed on both the product label and outer carton. Minimum order quantities may apply for custom packaging runs.

7. How should I maintain this air reservoir to extend its service life?

Regular maintenance is straightforward: drain accumulated moisture from the tank via the drain valve at scheduled intervals, inspect the exterior for paint damage or early corrosion signs, and check all port connections for air leaks. Following these simple steps significantly extends the reservoir’s operational lifespan.

Ready to Secure Your Supply? Get a Quote Today

Stop overpaying for middleman markups. As a factory-direct supplier of Sinotruk HOWO truck parts, Mettlead delivers the Air Reservoir 20+5L WG9000360712 at competitive wholesale prices — with reliable quality, fast shipping, and flexible payment terms that protect your business.

Here’s what you can do right now:

1. Request a quotation — Tell us your quantity, destination, and delivery timeline.
2. Get a free compatibility check — Share your truck model or VIN, and we’ll confirm fitment.
3. Ask about bulk discounts — Larger orders unlock better per-unit pricing.

👉 Contact Us Now to speak with our parts specialists and receive your personalized quote within 24 hours.

Browse more genuine components in our Sinotruk HOWO Parts Collection, explore our full Braking System Parts Category, or visit our comprehensive Sinotruk Truck Parts page to find everything your fleet needs — all in one place.