Product Introduction

This Air Reservoir Φ246 20L WG9000360700 is an OEM single-chamber air storage tank for heavy-duty trucks and commercial vehicles. It features a high-strength seamless steel construction with a diameter of Φ246mm and a 20-liter capacity, a corrosion-resistant coating, and precision-threaded ports, engineered to securely store dry compressed air for the vehicle’s pneumatic brake and auxiliary systems under heavy-load operations.

Performance

• Robust Seamless Steel Construction: This Φ246 20L heavy-duty air reservoir is manufactured from premium high-carbon steel with seamless welding, ensuring it withstands extreme pneumatic pressure (up to 1.0MPa) and resists deformation under vehicle vibration or impact—a high performance air storage tank.

• Superior Corrosion Resistance: The electrostatic powder-coated finish provides long-lasting protection against road salt, moisture, and debris, preventing rust and extending service life in harsh undercarriage environments.

• Precision Sealing: Machined threaded ports with high-quality gaskets ensure leak-free connections, making it a reliable replacement air reservoir for commercial vehicles.

• OEM Exact Fit: Optimized for Sinotruk heavy-duty truck models, it matches original mounting points and port positions for seamless installation.

Core Function

1. Stores dry, clean compressed air to provide stable pressure for the pneumatic brake system, ensuring responsive braking under heavy loads and long downhill runs—a core part of heavy duty truck brake parts.

2. Acts as a buffer to stabilize system pressure, reducing wear on air compressors and valves.

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

Air Reservoir Φ246 20L WG9000360700 – OEM Sinotruk Compressed Air Storage Tank

When your heavy-duty truck’s braking system demands a reliable, uninterrupted supply of compressed air, every component in the pneumatic circuit matters — especially the air reservoir. This Air Reservoir Φ246 20L WG9000360700 is a genuine OEM-spec single-chamber air storage tank engineered specifically for Sinotruk HOWO heavy trucks. Built from high-strength seamless steel with a precision-machined Φ246mm diameter body and a generous 20-liter capacity, it securely stores dry compressed air that feeds your vehicle’s pneumatic brake and auxiliary systems — even under the most demanding heavy-load operations. Whether you’re sourcing for fleet maintenance or assembly-line production, this reservoir delivers the durability, dimensional accuracy, and pressure integrity that professional applications require.

Key Features and Benefits of the WG9000360700 Air Reservoir

So, what makes this particular air reservoir stand out from generic aftermarket alternatives? Let’s break it down:

• High-Strength Seamless Steel Construction: Unlike welded tanks that can develop stress fractures over time, this reservoir is formed from a single piece of seamless steel tubing. As a result, it withstands continuous pressure cycling without fatigue cracking — extending service life significantly.
• Corrosion-Resistant Coating: The exterior surface is treated with a durable anti-corrosion coating that protects against road salt, moisture, and chemical exposure. Consequently, the tank maintains structural integrity even in harsh operating environments.
• Precision-Threaded Ports: Each inlet and outlet port is CNC-machined to exact OEM thread specifications. This ensures leak-free connections with standard pneumatic fittings, eliminating the air loss that plagues poorly manufactured reservoirs.
• OEM Part Number WG9000360700: This is a direct-fit replacement that matches the original Sinotruk factory specifications — no modifications, no adapters, no guesswork required during installation.
• Optimal 20-Liter Capacity: The 20L volume provides sufficient air reserve to maintain consistent brake pressure across multiple actuations, which is critical for safe operation during descents and frequent stop-start driving.
• Factory-Direct Pricing: Because Mettlead sources directly from certified manufacturing facilities in China, you get genuine OEM-quality components at significantly lower cost compared to dealer markup pricing.

Technical Specifications

Below you’ll find the complete technical parameters for this air reservoir. These specifications are essential for verifying fitment compatibility before placing your order:

Application Scenarios and Compatible Vehicles

This Air Reservoir Φ246 20L WG9000360700 is designed to serve as a core component within the compressed air supply system of Sinotruk heavy-duty vehicles. More specifically, here’s where and how it fits into your operation:

• Compatible Truck Models: Directly fits Sinotruk HOWO series heavy trucks that specify the WG9000360700 reservoir in their pneumatic brake system configuration.
• System Role: Functions as a Φ246mm diameter, 20-liter air storage cylinder within the vehicle’s air supply system — receiving dried, compressed air from the compressor and holding it at operating pressure for on-demand delivery to brake actuators and auxiliary pneumatic devices.
• Use Cases: Ideal for both new vehicle assembly lines and aftermarket maintenance/replacement operations. If your existing reservoir shows signs of external corrosion, pressure loss, or port thread damage, this unit serves as a drop-in replacement.
• Maintenance Replacement: Fleet managers and repair workshops frequently stock this part to minimize vehicle downtime. Because brake system air leaks are a common MOT/inspection failure point, having a ready replacement on hand keeps your trucks road-legal and operational.

Looking for more Sinotruk braking system components? Browse our complete Braking System Parts catalog, or explore the full range of Sinotruk HOWO Truck Parts available from Mettlead.

OEM/ODM Capability

At Mettlead, we understand that different markets have different requirements. That’s precisely why we offer flexible OEM and ODM services tailored to the needs of importers, distributors, and fleet operators worldwide:

• White-Label Packaging: Need to sell under your own brand? We provide neutral or custom-branded packaging that aligns with your company identity — complete with your logo, part numbers, and multilingual labels.
• Custom Packaging Solutions: Whether you require individual boxing for retail distribution or bulk palletized packaging for wholesale, our team configures packaging to your exact logistics specifications.
• Strict Quality Control: Every air reservoir undergoes pressure testing, dimensional inspection, and surface quality checks before shipment. Our QC process mirrors OEM factory standards, so you receive parts that perform identically to original equipment.
• Comprehensive Product Range: Beyond this single reservoir, Mettlead supplies the full spectrum of Chinese heavy truck parts — covering SINOTRUK, SITRAK, HOWO, SHACMAN, FAW, WEICHAI, DONGFENG, and FOTON brands. View our complete Sinotruk Truck Parts inventory.
• Factory Visit Welcome: We maintain an open-door policy for international buyers. You’re welcome to visit our facilities, inspect production processes, and verify quality systems firsthand.

Frequently Asked Questions (FAQ)

What is the function of the Air Reservoir WG9000360700 in a Sinotruk truck?

This air reservoir acts as a pressure storage vessel within the truck’s pneumatic system. It holds dried compressed air at operating pressure and delivers it on demand to the brake actuators and auxiliary systems. In other words, it ensures your brakes respond instantly every time you press the pedal — even after multiple consecutive applications.

How do I confirm that this Φ246 20L air reservoir fits my specific truck model?

The most reliable method is to match the OEM part number. If your vehicle’s parts catalog or existing reservoir is stamped with WG9000360700, this is a confirmed direct-fit replacement. Additionally, verify that your system requires a Φ246mm diameter, 20-liter capacity single-chamber tank. If you’re still unsure, feel free to contact our team with your VIN or chassis number for verification.

What are the signs that an air reservoir needs replacement?

Common indicators include: visible external rust or deep corrosion pitting, audible air leaks around the port fittings, unusually frequent compressor cycling (suggesting the tank can’t hold pressure), and moisture or oil contamination inside the tank. If you notice any of these symptoms, replacing the reservoir promptly prevents cascading failures in your braking system.

Is this air reservoir made from welded or seamless steel?

This reservoir is manufactured from seamless steel — meaning the cylindrical body is formed from a single piece of tubing without longitudinal welds. This construction method eliminates weld-line weak points, providing superior fatigue resistance and longer service life under repeated pressure cycling.

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

Absolutely. Mettlead offers white-label and custom packaging services for bulk orders. You can specify your own brand name, part number, barcode, and packaging design. This is particularly popular with regional distributors who want to build their own aftermarket brand identity.

What quality testing does this reservoir undergo before shipment?

Each unit is subjected to hydrostatic pressure testing to verify structural integrity, dimensional measurement to confirm Φ246mm diameter and port thread accuracy, and visual inspection for coating quality and surface defects. Only units that pass all checkpoints are cleared for dispatch.

Ready to Secure Your Supply? Request a Quote Today

Whether you need a single replacement unit or a bulk order for your distribution network, Mettlead delivers factory-direct pricing, fast reliable shipping, and flexible secure payment options on this Air Reservoir Φ246 20L WG9000360700 and thousands of other Sinotruk heavy truck parts.

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Contact Us Now to get a competitive quote, confirm stock availability, or discuss your OEM packaging requirements. Our team typically responds within 24 hours — because we know that in the truck parts business, time is money.