303.05.0028 Trailer Control Valve for MAN
303.05.0028
Summary
This trailer control valve is engineered for heavy commercial vehicle air brake systems. It features precise port configurations including M22x1,5 and M16x1,5 connections to ensure reliable pneumatic operation in demanding environments. Equivalent to OE MAN 81523016156 and WABCO 9730025440.
| EAN Code | 8683457009998 |
|---|
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Compatible OEM Codes
-
WABCO
- 973 002 544 0
-
MAN
- 81.52301-6156
Description
What does a trailer control valve do?
This trailer control valve plays a critical role in the pneumatic braking system of heavy commercial vehicles. It manages air pressure distribution to ensure stable and predictable braking force across the vehicle combination. Constructed from high-strength components, it is designed to withstand constant pressure fluctuations and harsh road conditions.Vehicle compatibility and systems
The component is compatible with MAN vehicles and meets the requirements of WABCO systems. This ensures seamless integration into existing pneumatic architectures for tractor units and heavy-duty machinery. Consult your authorized distributor for exact fitment details.Installation and maintenance
Installation requires careful attention to the specific port sizes: Port 3 uses M22x1,5, while Ports 12, 22, 11, 41, 42, and 43 utilize M16x1,5 threads. Technicians should inspect all pneumatic lines and seals during replacement to maintain optimal system integrity and prevent air leaks.System maintenance
Maintaining correct air pressure regulation is essential for safe operation. Regularly checking the valve for any signs of moisture or debris can extend the service life of the entire braking system.OE cross-reference
303.05.0028 (Trailer Control Valve) is the equivalent of the MAN and WABCO OE numbers. This part directly replaces MAN OE number 81523016156. It also replaces WABCO OE number 9730025440.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
MAN
- 81523016156
- 81.52301-6156
WABCO
- 9730025440
- 973 002 544 0
Related Products
Repair Kits
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| MAN | |||
| WABCO |
FAQ
What is the function of this control valve?
It regulates air pressure within the braking system to ensure consistent and safe deceleration for heavy commercial vehicles.
Which vehicle brands are compatible?
This part is designed to be compatible with MAN vehicles and WABCO systems.
What are the specific port thread sizes?
The unit features a Port 3 with M22x1,5 threads, while Ports 12, 22, 11, 41, 42, and 43 use M16x1,5 threads.
What should I check during installation?
Ensure all M16x1,5 and M22x1,5 connections are properly seated and that there are no leaks in the pneumatic lines.
What are the OE reference numbers of this part?
303.05.0028 directly replaces MAN OE number 81523016156. It also replaces WABCO OE number 9730025440.