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The AZ992553000020 Expansion Tank is a critical cooling system component engineered specifically for Sinotruk Sitrak parts systems, including the popular SITRAK C7H, C5H, and HOWO T7H heavy‑duty truck models. This expansion tank plays a vital role in maintaining the correct coolant level, accommodating thermal expansion, and ensuring efficient cooling system operation, thereby protecting the engine from overheating and extending its service life.
Engineered to meet the rigorous demands of long‑haul transportation and heavy‑duty applications, the AZ992553000020 expansion tank is manufactured from high‑quality, heat‑resistant materials that withstand extreme temperature variations and pressure fluctuations, guaranteeing consistent performance and reliability over millions of kilometers.
Expansion Tank
Расширительный бачок
Depósito de expansión
| Parameter | Specification / Value |
|---|---|
| OEM Number | AZ992553000020 |
| Product Name | Expansion Tank |
| Brand | SINOTRUK Sitrak |
| Material | High‑strength engineering plastic (PP + GF) |
| Capacity | 12 L (approx.) |
| Pressure Rating | 1.4 bar (20 psi) |
| Operating Temperature | -40°C to +120°C |
| Port Connections | Multiple hose barb and threaded ports |
| Mounting Type | Bolted bracket (OEM fitment) |
| Application | Engine coolant expansion and recovery |
| Compatible Models | SITRAK C7H, C5H, HOWO T7H, T5G, A7, and other SINOTRUK trucks |
| Service Life | 200,000+ km under normal operating conditions |
| Quality Standard | OEM‑grade, meets SINOTRUK factory specifications |
The AZ992553000020 Expansion Tank is a vital component of the engine cooling system in SINOTRUK Sitrak heavy‑duty trucks. This tank serves as a reservoir for excess coolant that expands as the engine heats up, and as a source of coolant to maintain the system at the correct level during operation. By absorbing thermal expansion and providing a convenient fill point, the expansion tank ensures that the cooling system remains free of air bubbles and operates at optimum efficiency.
Manufactured from glass‑fiber‑reinforced polypropylene (PP+GF), the AZ992553000020 expansion tank offers excellent durability, heat resistance, and dimensional stability. The translucent design allows for easy visual inspection of the coolant level, while the integrated pressure cap provides controlled pressurisation to raise the boiling point of the coolant and prevent cavitation. This genuine OEM component is a direct replacement for the original factory tank, ensuring a perfect fit and restoring the cooling system’s full functionality.
A properly functioning expansion tank is essential for preventing engine overheating and maintaining the longevity of cooling system components. The AZ992553000020 assembly eliminates the risk of coolant loss and air entrapment, ensuring that your SITRAK or HOWO truck operates reliably and efficiently in all driving conditions.
The AZ992553000020 expansion tank features a translucent body that allows for quick visual inspection of the coolant level without opening the system, simplifying routine maintenance and preventing overfill or low‑coolant conditions.
Manufactured from glass‑fiber‑reinforced polypropylene, the AZ992553000020 tank withstands high under‑hood temperatures, pressure cycles, and chemical exposure from coolant and road contaminants, ensuring long‑term reliability.
The tank is equipped with a precision pressure cap (1.4 bar) that maintains the cooling system at the optimal pressure, raising the boiling point of the coolant and preventing cavitation in the water pump.
Designed as a direct OEM replacement, the AZ992553000020 expansion tank comes with pre‑fitted mounting brackets and all necessary connections, allowing for a straightforward bolt‑on installation with minimal vehicle downtime.
Prevents Overheating: The AZ992553000020 expansion tank ensures that the cooling system maintains the correct coolant level and pressure, preventing overheating and protecting the engine from thermal damage.
Extends Engine Life: By maintaining a stable cooling system, the AZ992553000020 tank reduces thermal stress on the engine block, cylinder head, and gaskets, significantly extending the service life of your SITRAK or HOWO truck.
Leak‑Free Operation: The precision‑molded construction and high‑quality seals of the AZ992553000020 expansion tank eliminate coolant leaks, preventing fluid loss, engine bay contamination, and potential overheating.
Convenient Maintenance: The translucent body of the AZ992553000020 tank allows for quick and accurate coolant level checks, making routine maintenance faster and reducing the risk of low‑coolant conditions.
Reduces Downtime: As a direct OEM replacement, the AZ992553000020 expansion tank simplifies repairs, minimising vehicle off‑road time and keeping your fleet operational and profitable.
OEM Quality Assurance: The AZ992553000020 expansion tank meets or exceeds SINOTRUK’s original equipment specifications, guaranteeing a perfect fit and reliable performance that matches the original factory part.
Compatible Models:
The AZ992553000020 expansion tank is a direct cross‑reference for multiple OEM part numbers, ensuring broad applicability across the SINOTRUK truck range. Always verify compatibility using your vehicle’s VIN or existing tank part number.
Installation Tips & Best Practices:
The AZ992553000020 expansion tank is produced using high‑precision injection molding techniques that ensure consistent dimensions and excellent surface quality. The glass‑fiber‑reinforced polypropylene (PP+GF) material offers an outstanding balance of strength, heat resistance, and dimensional stability, even at elevated temperatures. The translucent design is achieved through careful material selection and molding process control, ensuring consistent clarity for easy coolant level inspection.
The integrated pressure cap is manufactured to exacting standards, with a calibrated pressure relief valve that maintains the cooling system at the optimal pressure. The hose connection ports are precision‑molded to ensure leak‑free sealing with the factory hoses, and the mounting brackets are reinforced to withstand the vibration and thermal cycling of heavy‑duty truck operation.
Each AZ992553000020 expansion tank undergoes rigorous quality testing, including pressure testing to verify integrity, thermal cycling tests to confirm durability, and visual inspections to ensure flawless finish. The tank is also tested for resistance to coolant chemicals and road contaminants, ensuring it meets the demanding requirements of SINOTRUK’s original equipment specifications and provides reliable service for hundreds of thousands of kilometers.
The AZ992553000020 Expansion Tank from SINOTRUK Sitrak is the definitive choice for fleet operators and owner‑drivers who demand uncompromising cooling system reliability, engine protection, and ease of maintenance. As a genuine OEM‑grade component, it guarantees a perfect fit, reliable performance, and peace of mind—backed by SINOTRUK’s engineering excellence and decades of experience in heavy commercial vehicle manufacturing.
Whether you are replacing a cracked or leaking expansion tank on a high‑mileage fleet truck or performing preventive maintenance on a SITRAK C7H, the AZ992553000020 tank delivers the performance and durability you need to keep your cooling system operating at peak efficiency. Its proven design, premium materials, and exacting tolerances make it the smart choice for any cooling system repair or preventive maintenance program.
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