The Sitrak Drum Brake Assembly (φ400×150, Self-Adjusting Arm, Electronic Wear Indicator) is a high-performance, safety-critical braking system designed for Sinotruk Sitrak heavy-duty trucks, offering reliable stopping power, reduced maintenance, and advanced wear monitoring. As a key component in the range of Sinotruk Sitrak parts, this assembly integrates a 400mm diameter brake drum, self-adjusting arms for consistent Sitrak Drum Brake Assembly clearance, and an electronic wear indicator for proactive maintenance. Engineered to meet the rigorous demands of commercial transport, it ensures optimal braking efficiency, extended service life, and enhanced safety across various operating conditions, from highway cruising to off-road applications.
The Sitrak Drum Brake Assembly (φ400×150, Self-Adjusting Arm, Electronic Wear Indicator) is a complete, pre-engineered braking system for the front axles of Sinotruk Sitrak trucks. It features a robust 400mm diameter brake drum with a 150mm width, providing a large friction surface for effective heat dissipation and consistent braking torque. The assembly includes left and right brake assemblies, self-adjusting arms, chamber brackets, liners, and all necessary fasteners. This integrated design ensures reliable performance under heavy loads, making it ideal for applications where safety and durability are paramount, such as long-haul transportation, construction, and logistics.
A standout feature of this assembly is the automatic brake clearance self-adjusting arm, which continuously maintains the optimal distance between the brake shoe and drum. As brake linings wear, the self-adjusting mechanism compensates automatically, ensuring consistent pedal feel and braking response without manual intervention. This reduces maintenance downtime and prevents issues like brake drag or reduced efficiency. The left and right self-adjusting arms (Parts WG4005456211 and WG4005456212) are designed for precise operation, enhancing overall braking reliability and extending the life of brake components.
The electronic wear indicator is an advanced safety feature embedded in the brake assembly. It monitors the thickness of the brake linings in real-time and alerts the driver via a dashboard warning when replacement is needed. This proactive system prevents unexpected brake failures, reduces the risk of accidents, and allows for planned maintenance scheduling. By integrating this technology, the Sitrak Drum Brake Assembly (φ400×150, Self-Adjusting Arm, Electronic Wear Indicator) supports fleet management in optimizing vehicle uptime and safety compliance, aligning with modern telematics and preventive maintenance strategies.
The assembly is designed for ease of installation and serviceability. It includes all components: chamber brackets for mounting the brake chamber, high-strength hex head bolts and spring washers for secure attachment, grease cups for lubrication points, and durable brake drums. The comprehensive kit ensures compatibility and simplifies the replacement process, reducing workshop time. Regular inspection of components like the self-adjusting arms and wear indicators is recommended to maintain peak performance. This assembly exemplifies Sinotruk’s commitment to innovation, providing a reliable braking solution that meets the evolving demands of the commercial vehicle industry.
| No. | Part Number | Part Name English | Quantity |
|---|---|---|---|
| 1 | WG4005455508 | Chamber Bracket (Right) | 1 |
| 2 | WG4005455553 | Front Right Brake Assembly (φ400×150, Electronic Wear Indicator) | 1 |
| 3 | WG4005456212 | Brake Clearance Self-Adjusting Arm (Right) | 1 |
| 4 | WG4005456211 | Brake Clearance Self-Adjusting Arm (Left) | 1 |
| 5 | WG4005455504 | Liner | 2 |
| 6 | WG4005455507 | Chamber Bracket (Left) | 1 |
| 7 | Q40312 | Spring Washer | 8 |
| 8 | Q151B1230TF2 | Hex Head Bolt | 8 |
| 9 | WG4005415507 | 45° Fitting Grease Cup M10×1 | 2 |
| 10 | WG4005455552 | Front Left Brake Assembly (φ400×150, Electronic Wear Indicator) | 1 |
| 11 | Q40314 | Spring Washer | 4 |
| 12 | ZQ151B1445TF6 | Hex Head Bolt M14×1.5 | 4 |
| 13 | WG4005455503 | Brake Drum | 2 |
Our Sitrak Drum Brake Assembly (φ400×150, Self-Adjusting Arm, Electronic Wear Indicator) is a genuine OEM part, manufactured to the highest standards of Sinotruk. It guarantees perfect compatibility, reliable performance, and adherence to strict safety regulations for heavy-duty trucks. By choosing this assembly, you ensure that all components—from the brake drums to the self-adjusting arms—work seamlessly together, providing consistent braking force and reducing the risk of failures. This authenticity eliminates the uncertainties of aftermarket parts, offering peace of mind and maintaining your vehicle’s warranty and resale value.
The integrated self-adjusting arm system sets our brake assembly apart by automatically maintaining optimal brake clearance. This feature eliminates the need for manual adjustments, reduces maintenance downtime, and ensures consistent braking performance as linings wear. It prevents common issues like brake drag or excessive pedal travel, enhancing driver comfort and safety. Combined with the electronic wear indicator, which provides early warnings for lining replacement, this assembly supports proactive maintenance planning, minimizing unexpected breakdowns and extending the overall lifespan of your braking system.
Durability and safety are engineered into every component. The brake drums are made from high-quality cast iron for excellent heat dissipation and wear resistance, while the chamber brackets and fasteners are constructed from high-strength materials to withstand harsh operating conditions. The electronic wear indicator enhances safety by alerting drivers before brake efficiency is compromised. This robust design ensures reliable performance in diverse environments, from high-temperature highway braking to dusty off-road sites, reducing total cost of ownership through fewer replacements and repairs.
Choosing our assembly offers significant operational advantages. It simplifies inventory management and installation by providing a complete kit with all necessary parts, reducing workshop time and errors. The advanced features contribute to better fuel efficiency by minimizing brake drag and optimizing rolling resistance. Backed by comprehensive technical support and a global supply chain, we ensure timely delivery and after-sales service. Investing in our Sitrak Drum Brake Assembly (φ400×150, Self-Adjusting Arm, Electronic Wear Indicator) means investing in the safety, efficiency, and profitability of your fleet, aligning with modern standards for smart, reliable commercial vehicles.
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.
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