- ADDRESS:Jinan City, Shandong Province
- Wanda Plaza, Jinan, Shandong, China
- +8617615809553
- info@deruna.com


The H0356F0203KA0 Air Control Unit is a complete, integrated air dryer and control assembly engineered to deliver clean, dry, and regulated compressed air for the pneumatic systems of SINOTRUK Howo heavy-duty trucks. As a trusted supplier of genuine Sinotruk howo parts, we offer this complete air control unit as a direct OEM replacement, manufactured to the exacting standards of the original equipment. The H0356F0203KA0 unit combines a high-efficiency desiccant dryer, a pressure regulator, a safety valve, and a purge control system in a single compact housing, ensuring that the air supplied to the brake system, suspension, and auxiliary circuits is free from moisture, oil, and particulate contamination, thereby extending component life and enhancing overall system reliability.
This H0356F0203KA0 air control unit plays a pivotal role in maintaining the integrity of the vehicle’s air system by continuously removing water vapor and contaminants from the compressor discharge air. Its integrated regeneration feature automatically purges collected moisture, ensuring consistent drying performance over the entire service life. The unit’s robust aluminum construction, corrosion-resistant internal coatings, and high-quality sealing elements guarantee dependable operation in extreme temperatures and harsh operating environments.
OEM direct replacement • Integrated desiccant dryer • Pressure regulation • Automatic purge regeneration
The H0356F0203KA0 is a fully integrated air treatment and control module designed for SINOTRUK Howo trucks. It combines the functions of an air dryer, pressure regulator, and purge valve into a single, serviceable unit that mounts directly onto the vehicle’s chassis or engine frame rail. This design simplifies installation, reduces air line connections, and minimizes potential leak points.
The core of the unit is a desiccant bed that adsorbs water vapor from the compressed air as it passes through. The pressure regulator maintains a stable outlet pressure (typically 8.5–9.5 bar) for the brake and auxiliary systems. A built-in purge valve automatically vents a small amount of compressed air during the compressor unload cycle to regenerate the desiccant, ensuring continuous drying efficiency.
The unit’s housing is cast from lightweight, corrosion-resistant aluminum alloy, with a protective e-coat finish for additional durability. All internal seals and diaphragms are made from high-grade nitrile rubber that withstands oil, ozone, and temperature extremes. The H0356F0203KA0 is designed to operate in temperatures ranging from -40°C to +80°C, making it suitable for global applications.
This air control unit is a direct OEM replacement, offering identical mounting bolt pattern, port sizes, and electrical connections (if applicable) as the original. Its robust construction and advanced drying technology ensure that the truck’s air system remains free from moisture and contaminants, prolonging the life of valves, brake chambers, and suspension components.
The H0356F0203KA0 air control unit is specifically designed for SINOTRUK Howo heavy-duty trucks, including popular models such as Howo A7, T7H, and other series that utilize this integrated dryer in their air brake and suspension systems. It is a direct replacement for the OEM unit, offering identical mounting, port sizes, and electrical connections.
This unit is suitable for a wide range of applications, including long-haul transport, regional distribution, construction, mining, and off-road operations, where reliable, moisture-free air is essential for brake safety and suspension performance. It is also compatible with many aftermarket air systems that require a regulated and dried air supply.
The H0356F0203KA0 is often used in conjunction with the vehicle’s air compressor, air tanks, and leveling valves. Always verify the pressure settings and port configurations before installation to ensure compatibility with the specific truck model.
When replacing, inspect the mounting bracket, air lines, and electrical harness for any wear or damage, and replace any deteriorated components to ensure optimal system performance.
Installing the H0356F0203KA0 air control unit requires basic mechanical skills and standard workshop tools. Before starting, ensure the vehicle’s air system is completely depressurized and the engine is off.
Remove the old unit by disconnecting the air inlet and outlet lines, the purge line (if separate), and any electrical connections. Clean the mounting surface and inspect the bracket for any corrosion or damage.
Position the new H0356F0203KA0 onto the bracket and secure it with the original mounting bolts, torqued to the manufacturer’s specification. Reconnect the air lines, ensuring they are clean and free from debris. Use new sealing washers or O-rings where required. If the unit has an electrical connector (for heater or purge control), plug it in securely.
After installation, slowly pressurize the system and check all connections for leaks using a soapy water solution. Verify the outlet pressure with a gauge and adjust the regulator if necessary. Run the engine and observe the unit’s operation during compressor loading and unloading cycles.
Regular maintenance includes periodic replacement of the desiccant cartridge (if serviceable) at recommended intervals (typically 1–2 years or 200,000 km), inspection of the purge valve for proper operation, and checking the pressure regulator setting. Replace the H0356F0203KA0 if the drying efficiency drops significantly or if internal components become worn.
The H0356F0203KA0 air control unit is manufactured in an ISO 9001-certified facility under strict quality control standards. Each unit undergoes 100% functional testing, including pressure decay tests, leak tests, and regulator calibration checks to ensure it meets OEM performance specifications.
The desiccant material is carefully selected and tested for adsorption capacity, crush strength, and dust generation. The aluminum housing is pressure-tested and inspected for porosity and dimensional accuracy. All rubber components are tested for hardness, tensile strength, and oil/ozone resistance.
Our commitment to quality ensures that the H0356F0203KA0 delivers reliable, moisture-free air, reducing the risk of corrosion, freeze-ups, and brake system failures. With a comprehensive warranty, this air control unit offers peace of mind for fleet operators and owner-operators alike.
Choose genuine quality for your air system protection – choose the H0356F0203KA0.
The H0356F0203KA0 air control unit is an essential component for maintaining the reliability and safety of your SINOTRUK Howo truck’s pneumatic systems. Its integrated drying, regulation, and purge functions ensure that the air supplied to brakes, suspension, and auxiliary equipment is clean and dry, preventing corrosion, freezing, and premature wear.
By choosing this OEM-grade unit, you avoid the risks associated with inferior aftermarket products, such as poor drying efficiency, inconsistent pressure, and short service life. The H0356F0203KA0 is engineered to deliver dependable performance, reducing maintenance costs and unplanned downtime.
Fleet operators will benefit from improved brake system reliability, reduced valve and chamber replacements, and extended compressor life. Owner-operators will gain confidence in their vehicle’s air supply, knowing that the critical drying and regulation functions are handled by a genuine part.
Invest in the H0356F0203KA0 Air Control Unit and experience the difference that a genuine SINOTRUK Howo part makes. Its proven reliability and engineering excellence make it the smart choice for professionals who demand the best for their vehicles.
Order your H0356F0203KA0 today and ensure your truck’s air system performs at its best for miles to come.