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WABCO Air Dryer 4324103550 WG9000360571
4324103550Original WABCO 4324103550 Air System Protector (single-chamber air dryer) with desiccant cartridge. Replaces SINOTRUK / CNHTC WG9000360571/1 on HOWO truck air brake systems. 10 bar cut-out, 13 bar max pressure, 24 V heater, -40 to +65 deg C.
WABCO Air Dryer 4324103550 – Air System Protector for HOWO / Sinotruk Trucks
The WABCO 4324103550 is a single-chamber air dryer, known as the Air System Protector, installed on the air supply line of HOWO and other Sinotruk (CNHTC) trucks. It removes water, oil and aerosol particles from the compressed air before the air reaches the brake valves, slave cylinders and air tanks, protecting the whole pneumatic brake system from corrosion and valve failures in hot, humid and dusty operating conditions.
This unit replaces the SINOTRUK / CNHTC part number WG9000360571/1 one to one. The integrated two-stage cartridge works as a water filter and an oil and aerosol filter, and the dried air is regenerated by a short purge cycle each time the compressor cuts out. The electric heater on the exhaust port prevents the purge valve from freezing in cold climates.
Technical Specifications
| Item | Specification |
|---|---|
| Brand | WABCO |
| Part number | 432 410 355 0 (nameplate confirmed) |
| Replaces | SINOTRUK / CNHTC WG9000360571/1 |
| Type | Single-chamber air dryer (Air System Protector) |
| Cartridge | Desiccant cartridge, two-stage: water filter + oil & aerosol filter |
| Cut-out pressure | 10.0 bar |
| Opening pressure | 13.0 bar |
| Max. operating pressure | 13.0 bar |
| Operational range | 0.7 bar |
| Port 21 | M22 x 1.5 |
| Port 22 | M12 x 1.5 |
| Port 4/23 | M16 x 1.5 |
| Heating connection | M27 x 1, 24 V heater |
| Temperature range | -40 to +65 deg C |
| Dimensions | 194 x 145 x 258 mm |
| Weight | 3.5 kg |
Key Features
- Genuine WABCO unit supplied in original WABCO packaging
- Nameplate part number 432 410 355 0 verified on the product
- Direct replacement for SINOTRUK WG9000360571/1 on HOWO air brake systems
- Two-stage cartridge keeps water and oil out of brake valves and air tanks
- 24 V electric exhaust heater for cold-weather operation
- Desiccant cartridge is replaceable, so the body can be reused
Signs Your Air Dryer Needs Replacement
- Water or oil found in the air tanks when draining
- Air pressure builds slowly or does not reach cut-out pressure
- Constant air leakage at the dryer exhaust while the compressor is loaded
- Rust or sludge in brake valves and relay valves caused by wet air
Ordering & Support
Confirm your existing part number against 4324103550 or WG9000360571/1 before ordering. Related products in our store: air compressor WG1500139006, drain valve WG9000361403, air horn solenoid valve WG9718710003 and four-circuit protection valve WG9000360600.
Genuine and OEM quality available. Bulk orders welcome.
Frequently Asked Questions
Is 4324103550 a direct replacement?
Original WABCO 4324103550 Air System Protector (single-chamber air dryer) with desiccant cartridge. Replaces SINOTRUK / CNHTC WG9000360571/1 on HOWO truck air brake systems. 10 bar cut-out, 13 bar max pressure, 24 V h... It replaces the OEM number directly for WABCO air brake and EBS systems. Share your chassis number and we will verify the match before shipment.
Can you supply 4324103550 in OEM quality?
Yes. OEM and original options can both be quoted, plus a cost-effective aftermarket alternative. Every option is checked against the OEM number before dispatch.
Do you have a minimum order quantity for 4324103550?
MOQ is 1 piece. Stock is dispatched in 2-3 working days, and for out-of-stock items we confirm a firm lead time (usually 5-10 working days) before you pay.
Can 4324103550 be sent by air express?
Yes - air express is available for urgent orders, with sea or rail freight for larger quantities. You receive inspection photos before dispatch and tracking after pickup.
Related Parts
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HOWO Brake Master Cylinder WG9000360530
HOWO Braking Lining AZ9231342068
Sitrak Disc Brake Pad WG9100444150 WVA29385
HOWO Chamber WG9000360600
HOWO Air Compressor 202V54100-7134/1
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