301.01.0023 Unloader Valve for Mercedes-Benz & MAN
301.01.0023
Summary
Heavy-duty unloader valve featuring M22x1,5 and M12x1,5 port configurations. This component is compatible with Mercedes-Benz, MAN, DAF, and Iveco heavy commercial vehicles to ensure precise air pressure regulation within the brake system. Equivalent to OE DAF 105101, Faun 1612011 and Irisbus U402151462.
| EAN Code | 8683457011083 |
|---|
Ready to Order
Compatible OEM Codes
-
IVECO
- 1118956
- 1118681
- 10298460
- 03429296
- 03410538
- 03410537
-
DAF
- 302239
- 105101
-
WABCO
- 975 303 061 0
-
NOOTEBOOM
- 73105
-
MERITOR
- S9753030610
-
MERCEDES BENZ
- 000 431 18 06
-
MAN
- 81.81011-7110
-
IRISBUS
- U402151462
-
FAUN
- 1612011
Description
What does an unloader valve do?
This unloader valve plays a critical role in the pneumatic control of heavy commercial vehicle brake systems. By managing air pressure release through specific port sizes like M22x1,5 and M12x1,5, it ensures the system maintains the required operating thresholds. This component is engineered using high-strength components to withstand the demanding cycles of heavy-duty air brake systems.Compatible vehicles and systems
The valve is designed for a wide range of heavy commercial vehicles including Mercedes-Benz, MAN, DAF, Iveco, Faun, Kenworth, Irisbus, and Nooteboom. It is also compatible with WABCO and Meritor systems. This ensures reliable performance across diverse fleets and various vehicle applications.Installation and technical specifications
For professional technicians, verifying the cut-out pressure—which operates at 8.1 BAR / 0.2 BAR in this specification—is essential during installation. Ensuring that all ports (M22x1,5 and M12x1,5) are correctly seated will prevent pressure leaks and maintain system integrity during heavy-duty operations.Maintenance guidance
Consult your authorized distributor to confirm exact fitment for your specific vehicle model.OE cross-reference
301.01.0023 (Unloader Valve) is the equivalent of the DAF, Faun, Irisbus, Iveco, MAN, Mercedes-Benz, Meritor, Nooteboom and WABCO OE numbers. This part directly replaces DAF OE numbers 105101, 302239. It also replaces Faun OE number 1612011, Irisbus OE number U402151462, Iveco OE numbers 03410537, 03410538, 03429296, 10298460, 1118681, 1118956, MAN OE number 81810117110, Mercedes-Benz OE number 0004311806, Meritor OE number S9753030610, Nooteboom OE number 73105 and WABCO OE number 9753030610.Technical Specifications
| Port 1 | M22x1,5 |
|---|---|
| Port 4 | M12x1,5 |
| Port 21 | M22x1,5 |
| Port 22 | M12x1,5 |
| Port 23 | M12x1,5 |
| Cut-Out Pressure | 8,1 BAR / 0,2 BAR |
| Inflation Valve | - |
| Recycle Valve | - |
Other OEMs
DAF
- 302239
- 105101
FAUN
- 1612011
IRISBUS
- U402151462
IVECO
- 1118956
- 1118681
- 10298460
- 03429296
- 03410538
- 03410537
KENWORTH
- S975-303-061-0
MAN
- 81810117110
- 81.81011-7110
MERCEDES BENZ
- A0004311806
- 0004311806
- 000 431 18 06
MERITOR
- S9753030610
NOOTEBOOM
- 73105
WABCO
- 9753030610
- 975 303 061 0
Related Products
Repair Kits
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| DAF | |||
| FAUN | |||
| IRISBUS | |||
| IVECO | |||
| KENWORTH | |||
| MAN | |||
| MERCEDES BENZ | |||
| MERITOR | |||
| NOOTEBOOM | |||
| WABCO |
FAQ
What is the function of this unloader valve?
It regulates air pressure within the brake system by releasing air once a specific cut-out pressure threshold is reached.
Which vehicle brands are compatible?
This part is suitable for Mercedes-Benz, MAN, DAF, Iveco, Faun, Kenworth, Irisbus, and Nooteboom vehicles.
What are the port specifications for this component?
The unit features M22x1,5 ports (Port 1 and 21) and M12x1,5 ports (Port 4, 22, and 23) for precise connection.
How can I verify if this fits my truck?
Always check the compatibility list or consult your authorized distributor to ensure match with your vehicle's OE requirements.
What are the OE reference numbers of this part?
301.01.0023 directly replaces DAF OE numbers 105101, 302239. It also replaces Faun OE number 1612011, Irisbus OE number U402151462, Iveco OE numbers 03410537, 03410538, 03429296, 10298460, 1118681, 1118956, MAN OE number 81810117110, Mercedes-Benz OE number 0004311806, Meritor OE number S9753030610, Nooteboom OE number 73105 and WABCO OE number 9753030610.