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The integrity of a truck’s air brake system depends on moisture-free compressed air. The WG9000360521/2 Air Dryer Filter is the critical desiccant cartridge that ensures this dryness. As a fundamental chassis component, it is a key element in the range of durable Sinotruk howo parts. The WG9000360521/2 is installed within the vehicle’s air dryer unit. It actively removes water vapor, oil mist, and contaminants from the compressed air supply. This process protects sensitive valves, brake chambers, and air lines from corrosion and freezing.
WG9000360521/2 Air Dryer Filter Cartridge
Картридж фильтра осушителя воздуха WG9000360521/2
Cartucho del Filtro del Secador de Aire WG9000360521/2
The WG9000360521/2 is a replaceable filtration and drying unit. It sits inside the air dryer assembly on the truck’s frame. Hot, moisture-laden air from the compressor enters the dryer.
This air is forced through the bed of desiccant inside the WG9000360521/2. The desiccant material adsorbs water molecules and traps oil aerosols. The result is clean, dry compressed air.
This dry air is then stored in the system’s reservoirs. It is used for all brake applications and pneumatic accessories. The cartridge is the final purification stage.
High-Capacity Moisture Adsorption
Utilizes premium-grade desiccant beads with a vast surface area. This ensures maximum water vapor removal, achieving a very low dew point.
Effective Oil and Contaminant Removal
Integrated multi-layer filtration captures oil mist, carbon particles, and pipe scale. This prevents sludge formation in air valves and tanks.
Optimized for Efficient Air Flow
Designed to maintain low air pressure drop across the cartridge. This ensures quick system pressure recovery and minimal compressor workload.
Supports Reliable Regeneration Cycles
The desiccant in the WG9000360521/2 is formulated for effective purge reactivation. This restores drying capacity and extends service life.
| Parameter / Feature | Specification / Description |
|---|---|
| OEM Part Number | WG9000360521/2 |
| Component Name | Air Dryer Filter Cartridge (Desiccant Cartridge) |
| Brand & Application | SINOTRUK Howo. For use in the vehicle’s air dryer unit within the pneumatic system. |
| Filter Type | Desiccant cartridge with integrated particulate and coalescing filter layers. |
| Primary Desiccant Material | High-grade activated alumina or molecular sieve beads for optimal moisture adsorption. |
| Operating Pressure Range | Designed for standard truck air system pressures (typically up to 150 psi / 10.3 bar). |
| Housing Compatibility | Engineered to fit specific SINOTRUK Howo air dryer models, ensuring a perfect seal. |
| Product Condition | New, 100% Genuine OEM Part. Factory-sealed to preserve desiccant freshness. |
The air brake system is a closed pneumatic circuit. The air compressor is its heart, pumping air into the system. This compressed air is hot and saturated with moisture.
It flows directly into the air dryer, which houses the WG9000360521/2 cartridge. Here, the air is cooled, and contaminants are removed. The desiccant captures the remaining water vapor.
The resulting dry, clean air is stored in the supply reservoirs. It is then available for brake applications and auxiliary devices. Every pneumatic function relies on this purified air.
Periodically, the dryer enters a regeneration purge cycle. A burst of dry air back-flushes the WG9000360521/2 cartridge. This releases trapped moisture out of the system.
Excessive moisture ejection from air tank drain valves is a primary indicator. Visible water or oily fluid is expelled during routine draining. This means the WG9000360521/2 is saturated.
The air dryer purge valve may cycle more frequently than normal. This is the system’s attempt to regenerate an overloaded desiccant bed. It indicates reduced drying capacity.
Slow air pressure buildup after engine start can occur. A severely clogged cartridge creates high restriction. The compressor struggles to pressurize the system.
In cold climates, frozen air lines are a dangerous consequence. Moisture in the lines freezes, blocking air flow to brakes. This can cause a complete loss of braking function.
Safety first: fully depressurize the entire air system. Drain all air reservoirs using the manual drain valves. Ensure zero pressure remains in the dryer housing.
Locate the air dryer, usually mounted on the frame rail. Using the correct tools, loosen and remove the cartridge housing or bowl. Carefully extract the old WG9000360521/2 filter.
Thoroughly clean the housing interior. Inspect and replace all O-rings and gaskets with the new ones provided. Install the new WG9000360521/2 cartridge, ensuring proper orientation.
Reassemble the housing and tighten to the specified torque. Re-pressurize the system and check meticulously for air leaks. Perform an initial manual purge to activate the new desiccant.
Adhere strictly to the OEM’s recommended service intervals. For the WG9000360521/2, replacement is typically advised annually. Alternatively, replace every 150,000 to 200,000 kilometers.
Operating conditions drastically affect service life. High-humidity regions, frequent short trips, and heavy compressor use shorten it. In such cases, inspect every six months.
Proactive replacement is far more economical than repairing downstream damage. A failed $50 valve caused by moisture costs much more. The WG9000360521/2 is a preventive investment.
Keep a maintenance log for each vehicle. Document the date and mileage of each filter change. This data helps optimize future intervals and supports warranty claims.
Water causes internal corrosion of steel air tanks and lines. Rust particles then travel through the system. These abrasive particles score sealing surfaces and jam valves.
Moisture mixes with compressor oil to form acidic, sticky sludge. This sludge accumulates in the smallest orifices of ABS modulators and relay valves. It leads to sluggish or failed brake release.
In freezing temperatures, water turns to ice. Ice can block air lines entirely or restrict flow in critical valves. This creates a direct and immediate safety hazard.
The WG9000360521/2 cartridge is the primary defense against these issues. Its proper function is not optional; it is a critical safety requirement. It protects the entire pneumatic investment.
The WG9000360521/2 is a multi-stage filter. The first stage is often a coalescing filter. It condenses oil aerosols and captures large particulates.
The main chamber contains thousands of desiccant beads. These beads are made of activated alumina or molecular sieve. They have a microscopic porous structure that traps water molecules.
A final protective filter layer may be present. It prevents any desiccant dust from escaping into the air system. This ensures only clean air exits the cartridge.
The entire assembly is contained in a robust metal or composite canister. High-quality seals at both ends prevent air bypass. Every WG9000360521/2 is engineered for maximum contact time and efficiency.
For fleet operators, air system reliability is paramount. Unscheduled downtime for brake repairs is extremely costly. It involves parts, labor, and lost revenue from an idle truck.
Incorporating the WG9000360521/2 into a scheduled maintenance plan prevents this. It is a classic example of “pay a little now, save a lot later.” The cost of the cartridge is minimal.
Bulk purchasing of genuine filters ensures consistency and lower unit cost. Training mechanics on the importance of proper installation is crucial. A poorly installed filter is as bad as a failed one.
Monitoring purge cycle frequency can provide early warnings. An increase suggests the filter is nearing the end of its service life. This allows for planned replacement during routine service.
A clean, dry air system operates more efficiently. The compressor does not need to cycle as frequently to maintain pressure. This reduces fuel consumption and wear on the compressor.
Extending the life of air system components reduces waste. Fewer valves, chambers, and tanks end up in landfills. The WG9000360521/2 contributes to sustainable fleet operations.
By removing oil mist, it reduces the amount of contaminated condensate. This makes draining air tanks a cleaner and less environmentally impactful task. It also protects workshop drains.
Properly functioning brakes are inherently safer. This prevents accidents and their associated environmental costs. The humble filter cartridge plays a role in this broader safety picture.
The Air Dryer Filter Cartridge, part number WG9000360521/2, is a non-negotiable safety component for SINOTRUK Howo trucks. Its function in removing moisture and contaminants is fundamental to reliable brake operation and the longevity of the entire pneumatic system.
Ensure safety, prevent costly repairs, and maximize uptime by using the genuine WG9000360521/2 filter. Its OEM-engineered design, high-quality desiccant, and perfect fit guarantee the dry, clean air your braking system demands. Make this critical maintenance item a cornerstone of your preventive service program.
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