301.01.0002 Compatible Unloader Valve
301.01.0002
Summary
This unloader valve is designed for heavy-duty brake systems, featuring M22x1,5 and M12x1,5 port sizes. It ensures precise pressure management with an 8.1 BAR cut-out pressure. Compatible with Mercedes-Benz, MAN, Scania, and WABCO systems. Equivalent to OE DAF 285768, Faun 99708458257 and Irisbus U403004451.
| EAN Code | 8699031064369 |
|---|
Ready to Order
Compatible OEM Codes
-
MERCEDES BENZ
- 003 431 38 06
- 003 431 36 06
- 002 431 87 06
- 002 431 52 06
- 002 431 46 06
- 002 431 15 06
-
NEOPLAN
- 1102733544131
- 1102733544130
- 1102732544114
- 110273201
-
DAF
- 75038R
- 75038A
- 75038
- 285768
-
MAN
- N2.50999-9114
- 84.52101-9017
- 84.52101-6017
-
WABCO
- 975 303 474 0
-
VAN HOOL
- 637214100
-
TEREX
- 00024212
-
STEYR
- 99100360090
-
SCANIA
- 1935691
-
RENAULT TRUCKS
- 5021170478
-
IVECO
- 500002011
-
IRISBUS
- U403004451
-
FAUN
- 99708458257
Description
What does an unloader valve do?
This unloader valve plays a critical role in the air brake system by regulating air pressure to ensure consistent performance. Built with high-strength components, it manages the air supply from the compressor to the rest of the pneumatic circuit, preventing overpressure through a precise 8.1 BAR cut-out pressure mechanism.Compatible vehicles and systems
This component is widely used in heavy commercial vehicles such as Mercedes-Benz, MAN, Scania, DAF, Iveco, and Renault Trucks. It is also compatible with Faun, Irisbus, Neoplan, Steyr, Terex, and Van Hool vehicles. This part is specifically engineered to function within WABCO systems to maintain optimal braking reliability.Installation and maintenance
Installation requires attention to the M22x1,5 and M12x1,5 port configurations to ensure a secure connection. Technicians should inspect the inflation valve status during routine maintenance to prevent air leaks or pressure fluctuations in the braking system.System reliability
Regular checks of the unloader valve can help prevent compressor overload and ensure stable air pressure throughout the vehicle's pneumatic circuits.OE cross-reference
301.01.0002 (Unloader Valve) is the equivalent of the DAF, Faun, Irisbus, Iveco, MAN, Mercedes-Benz, Neoplan, Renault Trucks, Scania, Steyr, Terex, Van Hool and WABCO OE numbers. This part directly replaces DAF OE numbers 285768, 75038, 75038A, 75038R. It also replaces Faun OE number 99708458257, Irisbus OE number U403004451, Iveco OE number 500002011, MAN OE numbers 84521016017, 84521019017, N2509999114, Mercedes-Benz OE numbers 0024311506, 0024314606, 0024315206, 0024318706, 0034313606, 0034313806, Neoplan OE numbers 110273201, 1102732544114, 1102733544130, 1102733544131, Renault Trucks OE number 5021170478, Scania OE number 1935691, Steyr OE number 99100360090, Terex OE number 00024212, Van Hool OE number 637214100 and WABCO OE number 9753034740.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 | OK |
| Recycle Valve | - |
Other OEMs
DAF
- 0285768
- 0075038
- 75038R
- 75038A
- 75038
- 285768
FAUN
- 99708458257
IRISBUS
- U403004451
IVECO
- 500002011
MAN
- N2509999114
- 84521019017
- 84521016017
- 84.52101.6017
- N2.50999-9114
- 84.52101-9017
- 84.52101-6017
MERCEDES BENZ
- A0034313806
- A0034313606
- A0024318706
- A0024315206
- A0024314606
- A0024311506
- 0034313806
- 0034313606
- 003.431.3806
- 003.431.38.06
- 003.431.3606
- 003.431.36.06
- 003 431 3806
- 003 431 3606
- 0024318706
- 0024315206
- 0024314606
- 002.431.8706
- 002.431.87.06
- 002.431.5206
- 002.431.52.06
- 002.431.4606
- 002.431.46.06
- 002 431 8706
- 002 431 5206
- 002 431 4606
- 003 431 38 06
- 003 431 36 06
- 002 431 87 06
- 002 431 52 06
- 002 431 46 06
- 002 431 15 06
NEOPLAN
- 1102733544131
- 1102733544130
- 1102732544114
- 110273201
RENAULT TRUCKS
- 5021170478
SCANIA
- 1935691
STEYR
- 99100360090
TEREX
- 00024212
VAN HOOL
- 637214100
WABCO
- 9753034740
- 975.303.474.0
- 975 303 474 0
Related Products
Repair Kits
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| DAF | |||
| FAUN | |||
| IRISBUS | |||
| IVECO | |||
| MAN | |||
| MERCEDES BENZ | |||
| NEOPLAN | |||
| RENAULT TRUCKS | |||
| SCANIA | |||
| STEYR | |||
| TEREX | |||
| VAN HOOL | |||
| WABCO |
FAQ
What is the function of this unloader valve?
It regulates air pressure within the braking system by releasing air at a specific cut-out pressure of 8.1 BAR to protect the pneumatic circuit.
Which vehicle brands are compatible with this part?
It is designed for heavy commercial vehicles including Mercedes-Benz, MAN, Scania, DAF, Iveco, Renault Trucks, and others like Neoplan and Irisbus.
What are the technical port specifications?
The unit features specific port sizes including M22x1,5 and M12x1,5 to ensure correct fitment in standard heavy-duty air systems.
Can this be used in WABCO systems?
Yes, this unloader valve is compatible with WABCO systems used in various heavy-duty truck and bus applications.
What are the OE reference numbers of this part?
301.01.0002 directly replaces DAF OE numbers 285768, 75038, 75038A, 75038R. It also replaces Faun OE number 99708458257, Irisbus OE number U403004451, Iveco OE number 500002011, MAN OE numbers 84521016017, 84521019017, N2509999114, Mercedes-Benz OE numbers 0024311506, 0024314606, 0024315206, 0024318706, 0034313606, 0034313806, Neoplan OE numbers 110273201, 1102732544114, 1102733544130, 1102733544131, Renault Trucks OE number 5021170478, Scania OE number 1935691, Steyr OE number 99100360090, Terex OE number 00024212, Van Hool OE number 637214100 and WABCO OE number 9753034740.