303.09.0002 Compatible Load Unloading Valve
303.09.0002
Summary
This load unloading valve is engineered for heavy commercial vehicle brake systems. It features M22x1,5 port sizes and an adjustment range for empty pressure of 0,8 - 2,2 BAR and half pressure of 2,8 - 3,7 BAR, ensuring precise air pressure regulation. Equivalent to OE DAF 700124, Iveco 01271399 and MAN 81521616174.
| EAN Code | 8683457010055 |
|---|
Ready to Order
Compatible OEM Codes
-
MAN
- 81.52161-9174
- 81.52161-6174
-
DAF
- 719701
- 700124
-
WABCO
- 475 604 010 0
-
VAN HOOL
- 637203620
-
NOOTEBOOM
- 308012
-
MERCEDES BENZ
- 000 566 18 26
-
IVECO
- 01271399
Description
What does a load unloading valve do?
This load unloading valve plays a critical role in the air brake system by managing air pressure distribution. It is manufactured with high-strength components to ensure reliable operation under heavy-duty conditions, maintaining consistent pressure regulation within the pneumatic circuit.Vehicle and system compatibility
The component is compatible with DAF, Iveco, MAN, Mercedes-Benz, Nooteboom, and Van Hool vehicles. It is also designed to work seamlessly with WABCO systems. This part ensures that the braking performance remains stable across varying load conditions in heavy-duty trucks and buses.Installation and technical parameters
Installation requires attention to the M22x1,5 port specifications and the 0° lever position to ensure correct integration into the pneumatic lines. Technicians should verify the adjustment ranges—0,8 - 2,2 BAR for empty pressure and 2,8 - 3,7 BAR for half pressure—to maintain optimal system safety.Maintenance and troubleshooting
Regular inspection of the valve helps prevent pressure fluctuations in the air brake system. Using high-strength components ensures long-term durability and minimizes maintenance downtime for fleet managers and workshop technicians.OE cross-reference
303.09.0002 (Load Unloading Valve) is the equivalent of the DAF, Iveco, MAN, Mercedes-Benz, Nooteboom, Van Hool and WABCO OE numbers. This part directly replaces DAF OE numbers 700124, 719701. It also replaces Iveco OE number 01271399, MAN OE numbers 81521616174, 81521619174, Mercedes-Benz OE number 0005661826, Nooteboom OE number 308012, Van Hool OE number 637203620 and WABCO OE number 4756040100.Technical Specifications
| Port 1 | M22x1,5 |
|---|---|
| Port 2 | M22x1,5 |
| Adjustment Range Empty Pressure | 0,8 - 2,2 BAR |
| Adjustment Range Half Pressure | 2,8 - 3,7 BAR |
| Lever Position | 0° |
Other OEMs
DAF
- 719701
- 700124
IVECO
- 01271399
MAN
- 81521619174
- 81521616174
- 81.52161-9174
- 81.52161-6174
MERCEDES BENZ
- A0005661826
- 000 566 18 26
NOOTEBOOM
- 308012
VAN HOOL
- 637203620
WABCO
- 4756040100
- 475 604 010 0
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| DAF | |||
| IVECO | |||
| MAN | |||
| MERCEDES BENZ | |||
| NOOTEBOOM | |||
| VAN HOOL | |||
| WABCO |
FAQ
What is the function of this load unloading valve?
It regulates air pressure within the brake system by automatically releasing air at specific thresholds to balance pressure based on vehicle load.
Which vehicle brands are compatible with this part?
This component is compatible with DAF, Iveco, MAN, Mercedes-Benz, Nooteboom, and Van Hool heavy commercial vehicles.
What are the technical port specifications?
The valve is equipped with two M22x1,5 ports and features a lever position of 0° for standard installation.
How do I check if the pressure adjustment is correct?
The adjustment range should be set between 0,8 - 2,2 BAR for empty pressure and 2,8 - 3,7 BAR for half pressure.
What are the OE reference numbers of this part?
303.09.0002 directly replaces DAF OE numbers 700124, 719701. It also replaces Iveco OE number 01271399, MAN OE numbers 81521616174, 81521619174, Mercedes-Benz OE number 0005661826, Nooteboom OE number 308012, Van Hool OE number 637203620 and WABCO OE number 4756040100.