303.06.0128 MAN Compatible ALB Load Sensing Valve
303.06.0128
Summary
This high-strength ALB Load Sensing Valve is designed for heavy commercial vehicle brake systems, specifically compatible with MAN trucks. It features M22x1.5 Voss and M16x1.5 Voss port configurations to ensure accurate pressure regulation according to vehicle load. Equivalent to OE MAN 81521616389 and WABCO 4757111140.
| EAN Code | 8683457051454 |
|---|
Ready to Order
Compatible OEM Codes
-
WABCO
- 475 711 114 0
-
MAN
- 81.52161-6389
Description
What does an ALB Load Sensing Valve do?
This ALB Load Sensing Valve plays a critical role in the pneumatic braking system of heavy commercial vehicles by regulating brake pressure based on the actual load of the vehicle. By sensing weight through the suspension linkage, it prevents brake lock-up during light loads and ensures optimal stopping power when fully loaded. This component is manufactured using high-strength components to withstand demanding operational conditions.Vehicle compatibility and fitment
This specific valve is compatible with MAN trucks and is designed to meet the rigorous requirements of the heavy commercial vehicle sector. It functions seamlessly within the braking architecture, providing stable pressure modulation across various load levels. The design ensures reliable integration with existing pneumatic lines and braking control units.Technical specifications and installation
The technical configuration includes Port 1 as M22x1.5 Voss, Port 2 as dual M22x1.5 Voss, and Port 4 as M16x1.5 Voss. For proper installation, technicians should verify that the empty pressure port settings (1.2 BAR for 41/42 and 4.1 BAR for Port 2) and full pressure settings (7.5 BAR for Port 2 and 4.8 BAR for 41/42) match the specific vehicle requirements during assembly.Maintenance and troubleshooting
Regular inspection of the sensing arm and valve body is recommended to prevent pressure fluctuations or uneven braking performance. Maintaining clean connections at the Voss ports helps ensure long-term reliability in heavy-duty service environments.OE cross-reference
303.06.0128 (ALB Load Sensing Valve) is the equivalent of the MAN and WABCO OE numbers. This part directly replaces MAN OE number 81521616389. It also replaces WABCO OE number 4757111140.Technical Specifications
| Empty Pressure Port 41/42 | 1,2 BAR |
|---|---|
| Empty Pressure Port 2 | 4,1 BAR |
| Full Pressure Port 2 | 7,5 BAR |
| Full Pressure Port 41/42 | 4,8 BAR |
| Port 1 | M22x1,5 Voss |
| Port 2 | M22x1,5 Voss(x2) |
| Port 4 | M16x1,5 Voss |
Other OEMs
MAN
- 81521616389
- 81.52161-6389
WABCO
- 4757111140
- 475 711 114 0
Related Products
Repair Kits
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| MAN | |||
| WABCO |
FAQ
What is the main function of an ALB Load Sensing Valve?
The valve adjusts the pneumatic brake pressure according to the weight of the vehicle load to ensure safe and balanced braking performance.
Which vehicles are compatible with this valve?
This component is specifically designed to be compatible with MAN trucks within heavy commercial vehicle applications.
What are the port specifications for this unit?
The unit features M22x1.5 Voss ports (Port 1 and Port 2) and an M16x1.5 Voss port (Port 4) for standard pneumatic connections.
How can I identify if a load sensing valve needs replacement?
Technicians should look for symptoms such as uneven braking or inconsistent pressure regulation under varying load conditions.
What are the OE reference numbers of this part?
303.06.0128 directly replaces MAN OE number 81521616389. It also replaces WABCO OE number 4757111140.