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Room 1212-G107, Unit 2, Building 1, Block A, Shenglong Plaza, No. 80 Weiyang Road, Weiyang District, Xi'an City, Shaanxi Province
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WG9000360571
Sinotruk HOWO
| Attribute | Description |
|---|---|
| Part Name | Air Dryer Assembly / Air Drying Unit / Desiccant Air Dryer |
| OEM Number | WG9000360571 |
| Alternate Format | WG9000360571/1 (updated variant) |
| Working Pressure | 1.0 MPa (nominal operating pressure) Max burst pressure: ~1.8–2.0 MPa |
| Operating Temperature Range | -40°C to +100°C (suitable for extreme climates) |
| Type | Integrated air dryer with control hole for automatic regeneration cycle |
| Design Type | Modular unit with replaceable internal desiccant filter cartridge |
| Inlet/Outlet Connection | Standard air brake fittings (G1/2" or 3/4" NPT threads) |
| Material | |
| • Housing: High-strength corrosion-resistant steel or aluminum alloy | |
| • Internal Core: Molecular sieve (desiccant), coalescing filter media | |
| • Seals: Oil- and heat-resistant NBR/FKM rubber | |
| Function | |
| • Removes water vapor from compressed air | |
| • Filters oil, dust, and particulates | |
| • Prevents ice formation in winter | |
| • Protects brake valves, ABS, and suspension systems | |
| Drain Type | Automatic electrically controlled purge or manual release (depending on model) |
| Condition | Brand new (OEM fresh stock or premium aftermarket) |
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Professional Installation Required
Involves disconnection of high-pressure air lines and electrical connectors.
Must be performed by certified technicians familiar with pneumatic systems.
Replace Desiccant Cartridge Regularly
The internal dryer core (e.g., WG9000360521) should be replaced annually or every 80,000–100,000 km.
Exhausted desiccant loses drying capacity — leads to water carryover.
Check Drain Functionality
Test automatic purge function during air build-up cycle.
Listen for "blow-down" sound at end of compression.
Ensure Correct Airflow Direction
Match inlet/outlet ports — reverse installation causes malfunction.
Follow flow arrow on housing.
Use Proper Mounting Hardware
Install securely to prevent vibration damage.
Use rubber bushings if provided for noise isolation.
Inspect for Leaks After Installation
Apply soapy water to connections — check for bubbles.
Even small leaks reduce system efficiency.
Avoid Contamination During Service
Keep open ports covered until reconnected.
Never install in dusty or humid environments without protection.
Verify Electrical Connections (if applicable)
Some models include heater or solenoid drain — ensure plug is tight and undamaged.
Check fuse and circuit before start-up.
Do Not Bypass the Dryer
Operating without a functional dryer risks complete brake system failure over time.
Storage Advice
Store upright in dry indoor environment.
Seal openings with caps to prevent debris entry.
SINOTRUK HOWO Full Series Heavy Truck Air Dryer
| OEM Part Number | Part Full Name | Applicable HOWO Models | Specification & Features |
|---|---|---|---|
| WG9000360521 | Single Tank Air Dryer Assembly with 4-circuit Protection Valve | Classic HOWO 336/371/420, HOWO A7, Golden Prince, Steyr King | Max working pressure 14bar, aluminum valve body, WABCO compatible, standard highway logistics model |
| WG9100368471 | Light Duty Air Dryer Assembly | Old 8×4 cargo truck, small HOWO dump truck, early HOWO chassis | Compact single tank, built-in oil-water separator, no heating plug, light mining vehicles |
| WG9000360548 | Euro 6 Integrated Air Processing Unit | HOWO TH7, TX, MAX tractor, Sitrak C5H | 6-circuit valve integrated, antifreeze heating device, large desiccant tank, match MC13 engine |
| WG9000360571 | Original WABCO Air Dryer Assembly | HOWO T7H, T5G, D7B, Sitrak C7H (MC07/MC11 MAN engine) | Genuine WABCO structure, double-layer oil filter, low temperature resistant seal, long haul truck |
| WG9000360417 | High Flow Heavy Load Air Dryer Assembly | T7H 6×4 tractor, 540HP mining dump truck | Oversized drying tank, dual oil passage, reinforced anti-vibration base, engineering overload vehicle |
| LG9700360015 | Light Commercial Truck Air Dryer Unit | HOWO Hanjiang, Shuaishuai light truck | Mini lightweight structure, low air consumption, light load chassis |
| 4324102470 | WABCO Air Dryer Desiccant Cartridge (Replacement Core) | All HOWO series universal replacement | Interchangeable with WG9000360521, aftermarket spare core |
