Product Introduction

This Middle Axle Brake Chamber, L=85 WG9000360601 is an OEM heavy-duty dual-diaphragm brake chamber, specifically designed for the middle axle brake system of Sinotruk heavy-duty trucks and commercial vehicles. Constructed with a high-strength steel housing and reinforced rubber diaphragms, it delivers reliable, consistent braking and parking force under heavy-load, long-haul, and harsh operating conditions.

Performance

• High-Strength Steel Housing: The rugged, gray-painted steel housing provides exceptional impact and vibration resistance, protecting internal components from damage in rough terrain and heavy-duty applications.

• Reinforced Dual Diaphragms: Heavy-duty, heat-resistant rubber diaphragms ensure consistent force output and long service life, even under repeated high-pressure cycling for both service and parking brake functions.

• Precision-Machined Components: The clevis, pushrod, and mounting hardware are precision-machined from high-grade steel, ensuring a secure fit and smooth operation with the brake linkage.

• Corrosion Resistance: The durable paint finish and zinc-plated hardware provide long-lasting protection against rust and corrosion, extending service life in all weather conditions.

Core Function

1. Converts compressed air pressure into mechanical force, actuating the brake linkage to apply the middle axle service brakes and providing spring-applied parking brake force—a core part of heavy duty truck brake parts.

2. Delivers consistent, reliable braking force to ensure responsive stopping performance under all operating conditions.

3. Withstands repeated mechanical stress and pressure fluctuations, maintaining reliable performance over millions of brake cycles.

Middle Axle Brake Chamber L=85 WG9000360601 – OEM Sinotruk Heavy-Duty Brake Chamber

When your heavy-duty fleet demands uncompromising braking performance, every component matters. The Middle Axle Brake Chamber, L=85 WG9000360601 is a genuine OEM-spec dual-diaphragm brake chamber engineered specifically for Sinotruk heavy-duty trucks. Built to withstand punishing loads, extreme temperatures, and relentless road vibration, this middle axle brake chamber delivers the consistent clamping force your vehicles need to stop safely — mile after mile, load after load. As a trusted global supplier, Mettlead brings you factory-direct pricing with no compromise on quality, making it easier than ever for wholesale distributors and fleet operators to source critical braking components.

Key Features and Benefits of the Middle Axle Brake Chamber WG9000360601

This isn’t just another brake chamber — it’s a precision-engineered safety component that protects drivers, cargo, and your reputation. Here’s why distributors across Africa, the Middle East, Southeast Asia, and South America choose this part:

• OEM-Grade Construction: Manufactured with a high-strength steel housing that resists corrosion and deformation, even under continuous heavy braking cycles.
• Reinforced Dual-Diaphragm Design: Premium rubber diaphragms provide consistent air-pressure response, ensuring reliable service brake and parking brake engagement simultaneously.
• Precise Stroke Length (L=85mm): The 85mm push-rod stroke is calibrated to deliver optimal braking force for middle axle applications, reducing pad wear and improving stopping efficiency.
• Extended Service Life: Engineered to exceed 500,000 braking cycles under standard operating conditions, significantly reducing replacement frequency and total cost of ownership.
• Plug-and-Play Installation: Direct bolt-on fitment with OEM mounting dimensions eliminates the need for modifications, saving workshop time and labor costs.
• All-Weather Performance: Sealed against dust, moisture, and road debris — this brake chamber performs reliably whether your trucks operate in desert heat or tropical humidity.

In other words, stocking this middle axle brake chamber means fewer warranty claims, happier end-customers, and stronger repeat orders for your business.

Technical Specifications – Middle Axle Brake Chamber WG9000360601

Accuracy matters when you’re sourcing brake components. Below you’ll find the complete technical parameters for this Sinotruk middle axle brake chamber:

Application Scenarios – Compatible Vehicle Models

The Middle Axle Brake Chamber WG9000360601 is specifically designed for the middle axle braking system of the following Sinotruk heavy-duty truck models:

• Sinotruk HOWO A7 / HOWO T7H – 6×4 and 8×4 tractor and cargo configurations
• Sinotruk SITRAK C7H / C5H – Premium long-haul tractor units
• Sinotruk Steyr Series – Heavy-duty mining and construction trucks
• Sinotruk HOHAN – Medium and heavy-duty logistics vehicles

This brake chamber serves three primary use cases in the aftermarket:

1. New Vehicle Assembly: OEM factories and assembly plants use this part for original production line installation on middle axle positions.
2. Replacement Parts: When the original brake chamber shows signs of air leakage, diaphragm fatigue, or push-rod seizure, this direct replacement restores full braking capability.
3. Brake System Overhaul: During scheduled maintenance or post-accident repair, workshops replace the entire brake chamber assembly to ensure system integrity and safety compliance.

Whether your customers are running long-haul logistics across African highways or hauling construction materials in Southeast Asian quarries, this middle axle brake chamber is built to handle the challenge. Explore our full range of heavy-duty braking system components for complete brake overhaul solutions.

OEM/ODM Capability – White-Label and Custom Packaging Available

At Mettlead, we understand that distributors and wholesalers need more than just quality parts — you need a supply partner who supports your brand growth. That’s exactly what we offer:

• White-Label Packaging: We supply this middle axle brake chamber with your own brand name, logo, and packaging design. Build your brand identity in your local market without investing in manufacturing.
• Custom Packaging Solutions: Whether you need individual retail boxes, bulk pallet packaging, or specialized export crating, our packaging team adapts to your requirements.
• Strict Quality Control: Every WG9000360601 brake chamber undergoes air-tightness testing, stroke measurement verification, and visual inspection before shipment. Defect rates are maintained below 0.3%.
• Flexible MOQ: We accommodate both trial orders for market testing and large-volume orders for established distributors. Contact us to discuss your specific quantity needs.
• Factory Direct Pricing: By sourcing directly from our China-based manufacturing network, you eliminate middlemen and maximize your profit margins.

Additionally, we welcome distributors to visit our facilities for on-site inspection and quality auditing. Seeing is believing — and we’re confident our operations will exceed your expectations. Browse our complete Sinotruk HOWO truck parts catalog to discover thousands of genuine-quality components ready for wholesale.

Frequently Asked Questions – Middle Axle Brake Chamber WG9000360601

1. What is the difference between a middle axle brake chamber and a rear axle brake chamber?

While both serve the drive axle braking system, the middle axle brake chamber (WG9000360601) is specifically calibrated for the intermediate axle position on 6×4 or 8×4 truck configurations. It features a push-rod stroke of L=85mm optimized for the middle axle brake drum geometry and load distribution. Using the wrong chamber on the wrong axle position can result in uneven braking and premature wear.

2. How do I know when this brake chamber needs replacement?

Watch for these warning signs: audible air leaks around the chamber body, excessive push-rod travel beyond the adjustment limit, slow brake release causing drag, visible cracks or rust-through on the housing, or the parking brake failing to hold on grades. If any of these symptoms appear, replace the brake chamber immediately to maintain safe operation.

3. Is this brake chamber compatible with automatic slack adjusters?

Yes. The WG9000360601 middle axle brake chamber features a standard clevis-type push-rod connection that is fully compatible with both manual and automatic slack adjusters used on Sinotruk HOWO and SITRAK platforms. No adapter is required.

4. What causes premature diaphragm failure in brake chambers?

The most common causes include contaminated air supply (oil or water in the pneumatic system), over-pressurization beyond 1.2 MPa, excessive heat transfer from brake drums during prolonged downhill braking, and physical damage from road debris. Installing proper air dryers and maintaining the air system significantly extends diaphragm life.

5. Can I use this brake chamber on non-Sinotruk trucks with similar specifications?

While the Type 30/30 chamber size is common across many heavy-duty platforms, the mounting bolt pattern and push-rod geometry of WG9000360601 are designed specifically for Sinotruk vehicles. Cross-fitting to other brands may require bracket modification and is not recommended without professional verification. For other truck brands, explore our full Sinotruk truck parts catalog or contact us for alternative part numbers.

6. What is the recommended replacement interval for this brake chamber?

Under normal operating conditions, the WG9000360601 brake chamber is designed to last 3–5 years or approximately 500,000+ km. However, trucks operating in harsh environments (mining, construction, extreme climates) should have brake chambers inspected every 6 months and replaced proactively at 2–3 year intervals to prevent in-service failures.

Ready to Stock the Middle Axle Brake Chamber WG9000360601?

Your customers depend on safe, reliable braking — and you depend on a supplier who delivers quality parts on time, every time. Mettlead is your factory-direct source for genuine-quality Sinotruk brake chambers and thousands of other heavy-duty truck components.

Here’s what you get when you partner with us:

• Competitive factory-direct wholesale pricing
• Flexible MOQ for new and established distributors
• Fast, reliable global shipping with professional export packaging
• Secure payment options including T/T, L/C, and Trade Assurance
• Dedicated account manager for personalized support

Take the next step today.
Contact us now to request a quote, ask about MOQ pricing, or discuss white-label packaging for the Middle Axle Brake Chamber WG9000360601. Our team typically responds within 12 hours — because in this business, speed matters as much as quality.