303.05.0023 Compatible WABCO Trailer Control Valve
303.05.0023
Summary
This trailer control valve is engineered for heavy-duty braking performance, featuring specialized port configurations including M22x1.5 and multiple M16x1.5 connections. It is compatible with WABCO systems to ensure reliable pneumatic control in commercial trailer braking circuits. Equivalent to OE WABCO 9730025300.
| EAN Code | 8683457009943 |
|---|
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Compatible OEM Codes
-
WABCO
- 973 002 530 0
Description
What does a trailer control valve do?
This trailer control valve plays a critical role in the pneumatic braking system by regulating air pressure to ensure precise braking force application. Built with high-strength components, it maintains consistent pressure distribution across the braking circuit even under heavy commercial loads.Compatibility and fitment
This component is designed to be compatible with WABCO systems. It is specifically engineered for use in heavy commercial vehicle trailers and industrial transport units where reliable air pressure modulation is required.Installation and maintenance
For proper installation, technicians should verify all port connections, including the M22x1.5 and M16x1.5 interfaces, to prevent air leaks. Regular inspection of the valve's pneumatic response and port integrity is recommended during scheduled maintenance intervals to ensure optimal braking performance.Troubleshooting guidance
When replacing this unit, ensure the pneumatic lines are depressurized and all seals are checked for wear to maintain system integrity.OE cross-reference
303.05.0023 (Trailer Control Valve) is the equivalent of the WABCO OE number. This part directly replaces WABCO OE number 9730025300.Technical Specifications
| Port 3 | M22x1,5 |
|---|---|
| Port 12 | M16x1,5 |
| Port 22 | M16x1,5 |
| Port 11 | M16x1,5 |
| Port 41 | M16x1,5 |
| Port 42 | M16x1,5 |
| Port 43 | M16x1,5 |
Other OEMs
WABCO
- 9730025300
- 973 002 530 0
Related Products
Repair Kits
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| WABCO |
FAQ
What is the function of this trailer control valve?
It regulates air pressure within the trailer's pneumatic braking system to ensure stable and predictable braking performance.
What port sizes does this component use?
The unit features a M22x1.5 port and several M16x1.5 ports (specifically ports 12, 22, 41, 42, and 43) for secure connection.
Is this part compatible with WABCO systems?
Yes, this component is designed to be compatible with WABCO systems used in heavy commercial trailers.
What should I check during installation?
Technicians should ensure all M-series threaded ports are clean and that seals are properly seated to prevent pressure loss in the brake circuit.
What are the OE reference numbers of this part?
303.05.0023 directly replaces WABCO OE number 9730025300.