303.01.0008 Relay Valve for DAF, MAN, Scania
303.01.0008
Summary
This relay valve is engineered for heavy commercial vehicle brake systems, featuring M22x1.5 and M16x1.5 port configurations and a maximum operating pressure of 13 BAR. It ensures rapid air pressure transfer for reliable braking performance in DAF, MAN, and Scania applications. Equivalent to OE DAF 1504903, MAN ZG046560002 and Provia PRO0110020.
| EAN Code | 8699031083629 |
|---|
Ready to Order
Compatible OEM Codes
-
SCANIA
- 1935660
- 1425183
- 1350118
- 1342598
-
WABCO
- 973 011 050 0
-
ProVia
- PRO 011 002 0
-
MAN
- ZG.04656-0002
-
DAF
- 1504903
Description
What does a relay valve do?
This relay valve functions as a critical component within the compressed air brake system of heavy commercial vehicles. It operates by facilitating a rapid air pressure transfer triggered by a pilot signal, ensuring that braking force is applied precisely and without delay to the brake chambers. Designed with high-strength components, it provides the durability required for demanding service environments.Vehicle compatibility and fitment
This part is compatible with DAF, MAN, and Scania trucks. It is also fitted to other heavy commercial vehicles within the same class. The component is designed to meet the rigorous demands of professional fleet maintenance and workshop servicing.Installation and maintenance
Installation requires careful attention to the port connections, specifically the M22x1.5 and M16x1.5 threads, to ensure a secure seal. Technicians should verify that the maximum operating pressure does not exceed 13 BAR during system testing to maintain optimal functionality and safety.Troubleshooting guidance
When inspecting brake systems, technicians should check for any delays in signal transmission or air leaks around the valve body to identify potential failures early.OE cross-reference
303.01.0008 (Relay Valve Relay Valves) is the equivalent of the DAF, MAN, Provia, Scania and WABCO OE numbers. This part directly replaces DAF OE number 1504903. It also replaces MAN OE number ZG046560002, Provia OE number PRO0110020, Scania OE numbers 1342598, 1350118, 1425183, 1935660 and WABCO OE number 9730110500.Technical Specifications
| Port 1 | M22x1,5 |
|---|---|
| Port 3 | M22x1,5 |
| Port 21 | M16x1,5 |
| Port 22 | M16x1,5 |
| Pressure | MAX 13 BAR |
| Port 4 | M16x1,5 |
Other OEMs
DAF
- 1504903
MAN
- ZG046560002
- ZG.04656.0002
- ZG.04656-0002
ProVia
- PRO 011 002 0
SCANIA
- 1935660
- 1425183
- 1350118
- 1342598
WABCO
- 9730110500
- 973.011.050.0
- 973 011 050 0
Related Products
Repair Kits
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| DAF | |||
| MAN | |||
| ProVia | |||
| SCANIA | |||
| WABCO |
FAQ
What is the primary function of this relay valve?
It facilitates rapid air pressure transfer via a pilot signal to ensure timely brake engagement in heavy commercial vehicle air systems.
Which vehicle brands are compatible with this part?
This component is designed for use in DAF, MAN, and Scania trucks and related heavy-duty applications.
What are the technical port specifications?
The unit features Port 1 and Port 3 with M22x1.5 threads, while Ports 21, 22, and 4 utilize M16x1.5 threads.
What is the maximum operating pressure?
The relay valve is rated for a maximum operating pressure of 13 BAR within the pneumatic braking system.
What are the OE reference numbers of this part?
303.01.0008 directly replaces DAF OE number 1504903. It also replaces MAN OE number ZG046560002, Provia OE number PRO0110020, Scania OE numbers 1342598, 1350118, 1425183, 1935660 and WABCO OE number 9730110500.