

The Sitrak Diaphragm Brake Chamber (20”, L=194) is a vital component for Sinotruk Sitrak trucks, engineered to deliver consistent braking performance under demanding conditions. As part of the Sinotruk Sitrak parts catalog, this diaphragm brake chamber ensures safety and reliability for heavy-duty vehicles. Its robust design caters to various applications, from long-haul transportation to construction sites, making it a preferred choice for fleet operators. The chamber operates by converting air pressure into mechanical force, activating the brake system efficiently. With precise engineering, it minimizes wear and tear, extending the lifespan of braking components. This product exemplifies Sinotruk’s commitment to quality and innovation in the automotive industry.
The Sitrak Diaphragm Brake Chamber (20”, L=194) is an air brake actuator specifically designed for Sinotruk Sitrak commercial vehicles. It functions by utilizing compressed air to push a diaphragm, which in turn moves a push rod to apply the brakes. This mechanism ensures reliable stopping power, crucial for safety in heavy-duty trucks. The chamber’s dimensions (20 inches in diameter and 194 mm in stroke length) are optimized for standard brake systems, providing compatibility and ease of installation. Its design incorporates high-quality materials to withstand harsh environments, including extreme temperatures and vibrations. Regular maintenance of this component can prevent brake failures and enhance overall vehicle performance.
This brake chamber is integral to the air brake system, converting pneumatic energy into mechanical force. The diaphragm inside acts as a flexible seal, allowing air pressure to expand and contract, thereby controlling brake application. The Sitrak Diaphragm Brake Chamber (20”, L=194) is known for its durability, with a reinforced housing that resists corrosion and leaks. It is commonly used in rear axles of trucks, where consistent braking force is essential for load management. Engineers have tested it for millions of cycles, ensuring longevity and reducing downtime. Its efficiency contributes to fuel savings by minimizing drag and optimizing air consumption in the braking process.
Safety is a paramount feature of the Sitrak Diaphragm Brake Chamber (20”, L=194). It includes fail-safe mechanisms that default to a braked position in case of air pressure loss, preventing accidents. The chamber complies with international standards such as ISO and FMVSS, guaranteeing reliability across global markets. Its design reduces the risk of brake fade, a common issue in prolonged use, by dissipating heat effectively. Fleet operators appreciate its consistency, which helps in maintaining uniform braking across all wheels. This component is often paired with slack adjusters to ensure proper brake shoe positioning, further enhancing safety on the road.
In industrial applications, the Sitrak Diaphragm Brake Chamber (20”, L=194) supports various truck models, including dump trucks, trailers, and buses. Its versatility stems from standardized mounting points and connection sizes, allowing for seamless integration. The chamber’s performance is monitored through pressure sensors in modern vehicles, providing real-time data for predictive maintenance. It plays a key role in reducing stopping distances, especially when carrying heavy loads. Manufacturers recommend periodic inspections to check for wear on the diaphragm and springs, ensuring optimal function. This brake chamber is a cornerstone of Sinotruk’s reputation for robust and dependable automotive parts.
| No. | Part Number | Part Name English | Quantity |
|---|---|---|---|
| 1 | WG4005362001 | Diaphragm brake chamber (20″, L=194) | 2 |
| 2 | Q40312 | Spring washer | 4 |
| 3 | Q150B1235 | Hex head bolt | 4 |
| 4 | Q5004025 | Split pin | 2 |
| 5 | Q5101240 | Pin shaft | 2 |
| 6 | Q40112 | Flat washer | 2 |
| 6 | Q40112 | Flat washer | 4 |
Our Sitrak Diaphragm Brake Chamber (20”, L=194) is manufactured with premium materials, ensuring exceptional durability and resistance to wear. It undergoes rigorous quality checks, including pressure testing and environmental simulations, to meet Sinotruk’s high standards. This chamber offers consistent performance, reducing the likelihood of brake failures and enhancing vehicle safety. Its design is optimized for easy installation and maintenance, saving time and costs for fleet managers. By choosing this product, you invest in a component backed by years of engineering expertise and positive customer feedback from around the world.
The Sitrak Diaphragm Brake Chamber (20”, L=194) delivers superior braking efficiency, thanks to its precise diaphragm response and minimal air leakage. It contributes to better fuel economy by reducing unnecessary drag on the braking system. This chamber is compatible with a wide range of Sinotruk Sitrak models, making it a versatile spare part for various applications. Its robust construction handles heavy loads and rough terrains without compromising performance. We provide comprehensive support, including detailed documentation and access to technical resources, to ensure seamless integration into your vehicles.
Longevity is a key advantage of our Sitrak Diaphragm Brake Chamber (20”, L=194). With a lifespan exceeding industry averages, it reduces replacement frequency and downtime, boosting operational efficiency. The chamber’s components are designed for easy replacement, such as the diaphragm and springs, extending its service life further. It adheres to global safety regulations, giving you peace of mind for cross-border transportation. Our supply chain ensures timely delivery and availability, minimizing disruptions to your fleet operations. This reliability makes it a cost-effective choice for long-term use.
Choosing our Sitrak Diaphragm Brake Chamber (20”, L=194) means partnering with a trusted brand known for innovation and customer-centric solutions. We offer competitive pricing without sacrificing quality, making it accessible for businesses of all sizes. Our product comes with a warranty and after-sales service, ensuring support throughout its lifecycle. By integrating this chamber, you enhance the overall braking system’s reliability, contributing to safer roads and reduced environmental impact. Join countless satisfied customers who rely on Sinotruk parts for their daily operations and experience the difference in performance and durability.
If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.