Rear Axle Assembly with a Differential Lock
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Caliper Assembly
Caliper Assembly – Complete Disc Brake Caliper Service Kit for Sitrak C7H
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Disc Brake – Complete Heavy-Duty Brake Kit for Sitrak C7H

The Disc Brake system is a critical safety component for the Sitrak C7H, providing reliable and powerful braking performance. This comprehensive kit includes everything needed for a full brake service or replacement, from calipers and pads to brake chambers and specialized lubricants. For complete technical specifications and ordering details, please refer to the official Sinotruk Catalog, which provides comprehensive information on all available variants and compatible truck models for the Disc Brake.

This Disc Brake kit is designed to deliver consistent stopping power, even under the most demanding conditions. Its advanced materials and precision engineering ensure reduced brake fade, longer pad life, and improved safety. The Disc Brake system is a direct replacement for the original equipment, guaranteeing a perfect fit and seamless integration with the C7H’s existing brake infrastructure.

The Disc Brake system features high-performance components that work together to provide exceptional stopping power and durability. Each component in this Disc Brake kit has been rigorously tested to meet the highest standards of quality and reliability, making it the ideal choice for fleet operators and individual owners alike.

Disc Brake

Component Details of Disc Brake

Hexagon Head Bolt

The Hexagon Head Bolts in this Disc Brake kit are high-strength fasteners used to secure the caliper assemblies and other critical components. Manufactured from grade 10.9 alloy steel with a zinc-nickel coating, they provide exceptional clamping force and corrosion resistance. Two different sizes are included: M12x25 for specific mounting points and M20x65 for the main caliper attachment. These bolts are precisely matched to the C7H chassis, ensuring proper thread engagement and torque retention, which is vital for the safety and reliability of the Disc Brake system.

Spring Washer

The Spring Washers in the Disc Brake kit are split-ring type washers that provide a mechanical lock against loosening due to vibration. Made from high-carbon spring steel with a corrosion-resistant coating, they maintain constant tension on the fasteners, ensuring that the caliper and other components remain securely attached throughout the vehicle’s service life. Their use is essential for maintaining the integrity of the Disc Brake system, especially in heavy-duty applications where vibration is constant.

Pressure Plate with Electronic Wear Alarm

The Pressure Plate with Electronic Wear Alarm is an advanced component of the Disc Brake system that monitors brake pad wear and alerts the driver when replacement is needed. It consists of a steel backing plate with an integrated wear sensor that is connected to the vehicle’s ECU. When the pads reach a critical wear level, the sensor triggers a warning light on the dashboard, allowing timely maintenance. This feature enhances safety and prevents damage to the brake discs, making the Disc Brake kit a smart choice for modern trucking operations.

Brake Pad Assembly

The Brake Pad Assembly is a key friction component of the Disc Brake system, providing the stopping force by clamping onto the brake disc. It consists of a high-friction compound bonded to a steel backing plate, engineered to deliver consistent performance over a wide temperature range. The pads are designed for low dust and noise, offering excellent modulation and long service life. This Disc Brake kit includes four brake pad assemblies, ensuring complete coverage for both front or rear axles, depending on the application.

Caliper Assembly (Left)

The Left Caliper Assembly is a precision-engineered component that houses the brake pads and actuating mechanism. In the Disc Brake kit, it is a floating caliper design with a single piston, providing even pressure distribution across the brake pad. Manufactured from high-strength cast iron with a corrosion-resistant coating, it is designed to withstand the high temperatures and forces generated during braking. The left caliper is specifically contoured for the left side of the axle, ensuring proper fitment and alignment within the Disc Brake system.

Caliper Assembly (Right)

The Right Caliper Assembly is the symmetric counterpart to the left, designed for the right side of the axle. It shares the same robust construction, single-piston design, and high-quality materials, ensuring balanced braking performance across the axle. In the Disc Brake kit, both calipers are supplied with all necessary hardware for a complete installation, including mounting bolts and guide pins. The right caliper is precision-machined to match the left, providing consistent clamping force and even pad wear.

Brake Chamber 24/24 (Total Length 285, Cold Region)

The Brake Chamber is a critical actuator in the Disc Brake system, converting pneumatic pressure into mechanical force to apply the brakes. This 24/24 chamber has a total length of 285mm and is specially designed for cold region operation, featuring advanced sealing materials that remain flexible in sub-zero temperatures. The kit includes two chambers (left and right), each providing a service brake function and a spring-applied parking brake. Their robust construction and reliable performance ensure consistent braking even in extreme weather conditions, making this Disc Brake kit ideal for operators in harsh climates.

OMEGA 99 Special Grease for Disc Brakes

OMEGA 99 is a high-performance specialty grease formulated specifically for disc brake systems. It is used to lubricate the caliper guide pins, bushings, and other moving parts to ensure smooth operation and prevent corrosion. In the Disc Brake kit, this grease is essential for maintaining the longevity and performance of the caliper assemblies. Its high-temperature resistance and water-repellent properties make it ideal for heavy-duty applications, reducing wear and preventing sticking of the brake components.

Product Parameters of Disc Brake

No. Part No. Name
1Q151C1225TF2Hexagon Head Bolt
2Q40312Spring Washer
3WG4007443054Pressure Plate with Electronic Wear Alarm
4WG9100444150Brake Pad Assembly
5AZ4007444210Caliper Assembly (Left)
6Q151B2065TF2Hexagon Head Bolt
7812W50410-6886Brake Chamber 24/24 (Total Length 285, Cold Region)
8812W50410-6885Brake Chamber 24/24 (Total Length 285, Cold Region)
9AZ4007444220Caliper Assembly (Right)
10WG9007380005OMEGA 99 Special Grease for Disc Brakes

Why Choose Our Disc Brake?

Superior Stopping Power and Safety

The Disc Brake system delivers exceptional stopping power, reducing braking distances and improving overall vehicle safety. Its advanced friction materials and precision calipers provide consistent performance, even under heavy loads and extreme conditions, giving you confidence in every stop.

Complete Kit with All Components

This Disc Brake kit includes every component necessary for a full brake service – calipers, pads, chambers, bolts, washers, wear sensors, and lubrication. There is no need to source additional parts, saving time and ensuring compatibility.

Durable and Corrosion-Resistant Materials

All components of the Disc Brake system are manufactured from high-grade materials with advanced coatings to resist corrosion, wear, and high temperatures. This ensures long service life and reduced maintenance costs, making it a reliable choice for heavy-duty trucking.

OEM Quality and Precision Fitment

The Disc Brake kit is manufactured to the exact OEM specifications, guaranteeing a perfect fit on the Sitrak C7H. The precision-machined components and correctly sized fasteners ensure a hassle-free installation, reducing downtime and labor costs.

Online Catalog of SINOTRUK Parts

Learn More

Our online catalog provides comprehensive access to genuine SINOTRUK parts for all major vehicle lines — including HOWO, Sitrak, Steyr, and Yellow River series trucks. You can browse detailed specifications, original part numbers, and exploded-view diagrams for every assembly. Whether you are performing routine maintenance or planning a major overhaul, the catalog helps you quickly identify the correct components for your vehicle. When you become a SINOTRUK customer, we offer complimentary full‑access catalog services, ensuring you always have the latest product data and interchangeability information at your fingertips to support efficient fleet management and accurate parts ordering.

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