303.09.0001 Load Unloading Valve for WABCO systems
303.09.0001
Summary
This load unloading valve features M22x1,5 ports and an adjustment range for empty pressure between 1,4 - 2,8 BAR. It is designed for heavy commercial vehicle air brake systems and is compatible with Scania, MAN, and WABCO systems. Equivalent to OE DAF 0700125, Kögel 77372 and Krone 500945364.
| EAN Code | 8683457004689 |
|---|
Ready to Order
Compatible OEM Codes
-
DAF
- 0719704
- 0719702R
- 0719702A
- 0719702
- 0700126
- 0700125
-
MAN
- 82.52161-6002
- 81.52161-9225
- 81.52161-6225
-
WABCO
- 475 604 011 0
-
VAN HOOL
- 637203620
-
SETRA
- 8283462000
-
SCHMITZ CARGOBULL
- INS0120036
-
SCANIA
- 1010125
-
RENAULT TRUCKS
- AG46729001
-
OTOKAR
- AIF0892
-
NOOTEBOOM
- 308042
-
KRONE
- 500945364
-
KÖGEL
- 77372
Description
What does a load unloading valve do?
This load unloading valve serves as a critical component within the pneumatic brake system of heavy commercial vehicles. It manages air pressure regulation by automatically releasing excess air once specific pressure thresholds are reached, ensuring stable system operation under varying loads. Constructed from high-strength components, it provides reliable performance in demanding service conditions.Compatible vehicles and engines
This component is widely used in various heavy commercial vehicles, including those from Scania, MAN, DAF, Renault Trucks, and Otokar. It is also fitted to Kögel, Krone, Nooteboom, Setra, and Van Hool models. This part is compatible with WABCO systems to ensure precise pressure control across the entire pneumatic circuit.Installation and maintenance
Installation involves securing the M22x1,5 ports and verifying the lever position at 0°. Technicians should monitor the adjustment range for empty pressure (1,4 - 2,8 BAR) and half pressure (3,4 - 4,3 BAR) to ensure optimal braking performance and prevent system over-pressurization during routine maintenance.System performance guidance
Regular inspections of the valve connections are recommended to prevent leaks and maintain air system integrity. For proper fitment, always verify compatibility with the specific vehicle application and existing pneumatic architecture.OE cross-reference
303.09.0001 (Load Unloading Valve) is the equivalent of the DAF, Kögel, Krone, MAN, Nooteboom, Otokar, Renault Trucks, Scania, Schmitz Cargobull, Setra, Van Hool and WABCO OE numbers. This part directly replaces DAF OE numbers 0700125, 0700126, 0719702, 0719702A, 0719702R, 0719704. It also replaces Kögel OE number 77372, Krone OE number 500945364, MAN OE numbers 81521616225, 81521619225, 82521616002, Nooteboom OE number 308042, Otokar OE number AIF0892, Renault Trucks OE number AG46729001, Scania OE number 1010125, Schmitz Cargobull OE number INS0120036, Setra OE number 8283462000, Van Hool OE number 637203620 and WABCO OE number 4756040110.Technical Specifications
| Port 1 | M22x1,5 |
|---|---|
| Port 2 | M22x1,5 |
| Adjustment Range Empty Pressure | 1,4 - 2,8 BAR |
| Adjustment Range Half Pressure | 3,4 - 4,3 BAR |
| Lever Position | 0° |
Other OEMs
DAF
- 0719704
- 0719702R
- 0719702A
- 0719702
- 0700126
- 0700125
KÖGEL
- 77372
KRONE
- 500945364
MAN
- 82521616002
- 81521619225
- 81521616225
- 82.52161-6002
- 81.52161-9225
- 81.52161-6225
NOOTEBOOM
- 308042
OTOKAR
- AIF0892
RENAULT TRUCKS
- AG46729001
SCANIA
- 1010125
SCHMITZ CARGOBULL
- INS0120036
SETRA
- 8283462000
VAN HOOL
- 637203620
WABCO
- 4756040110
- 475.604.011.0
- 475 604 011 0
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| DAF | |||
| KÖGEL | |||
| KRONE | |||
| MAN | |||
| NOOTEBOOM | |||
| OTOKAR | |||
| RENAULT TRUCKS | |||
| SCANIA | |||
| SCHMITZ CARGOBULL | |||
| SETRA | |||
| VAN HOOL | |||
| WABCO |
FAQ
What is the function of this load unloading valve?
It regulates air pressure within the brake system by releasing air when specific pressure thresholds are met, ensuring stable pneumatic operation.
What are the technical port specifications?
This valve features M22x1,5 ports on both Port 1 and Port 2 to ensure secure integration into heavy-duty air systems.
What is the pressure adjustment range?
The unit features an adjustment range for empty pressure of 1,4 - 2,8 BAR and a half pressure range of 3,4 - 4,3 BAR.
Is this part compatible with WABCO systems?
Yes, this component is designed to be compatible with WABCO systems used in various heavy commercial vehicle applications.
What are the OE reference numbers of this part?
303.09.0001 directly replaces DAF OE numbers 0700125, 0700126, 0719702, 0719702A, 0719702R, 0719704. It also replaces Kögel OE number 77372, Krone OE number 500945364, MAN OE numbers 81521616225, 81521619225, 82521616002, Nooteboom OE number 308042, Otokar OE number AIF0892, Renault Trucks OE number AG46729001, Scania OE number 1010125, Schmitz Cargobull OE number INS0120036, Setra OE number 8283462000, Van Hool OE number 637203620 and WABCO OE number 4756040110.