303.02.0032.02 Repair Kit for 4-Circuit Protection Valves
303.02.0032.02
Summary
This repair kit is designed for the maintenance of 4-circuit protection valves in pneumatic brake systems. It ensures reliable air distribution across multiple circuits for heavy commercial vehicles, compatible with WABCO systems and various heavy-duty vehicle makes including MAN, Neoplan, and King Long. Equivalent to OE WABCO 9347149222.
| EAN Code | 8683457020078 |
|---|
Ready to Order
Compatible OEM Codes
-
WABCO
- 934 714 922 2
Description
What does a 4-circuit protection valve repair kit do?
This repair kit serves as a comprehensive overhaul set for the 4-circuit protection valve within the pneumatic brake system of heavy commercial vehicles. By replacing internal wear components such as seals and diaphragms, this kit helps restore the valve to its original pressure balance and response speed, ensuring that air is correctly distributed to the front axle, rear axle, park brake, and auxiliary consumers.Vehicle and system compatibility
This component is essential for maintaining safety in heavy commercial vehicles, as it prevents a leak in one circuit from draining the pressure in others. It is compatible with WABCO systems and is used in vehicles from MAN, Neoplan, JAC, and King Long.Maintenance and installation guidance
For workshop technicians performing maintenance, using a high-strength repair kit allows for the efficient renewal of the valve housing without needing a complete assembly replacement. When inspecting the pneumatic system, technicians should check for pressure drops or leaks that indicate a need for internal component renewal to maintain optimal braking performance.Troubleshooting and selection
Consult your authorized distributor to ensure correct fitment for your specific braking system requirements.OE cross-reference
303.02.0032.02 (4-Circuit Protection Valve Repair Kit) is the equivalent of the WABCO OE number. This part directly replaces WABCO OE number 9347149222.Other OEMs
WABCO
- 9347149222
- 934 714 922 2
Related Products
Used In
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| JAC | |||
| KING LONG | |||
| MAN | |||
| NEOPLAN | |||
| WABCO |
FAQ
What is the purpose of a 4-circuit protection valve repair kit?
It provides the necessary seals and diaphragms to renew the internal components of a protection valve, restoring its ability to isolate air circuits during a leak.
Which vehicle types use these repair kits?
These kits are used in heavy commercial vehicles such as trucks, buses, and tractor units from manufacturers like MAN and Neoplan.
Can I use this kit on WABCO systems?
Yes, this kit is designed to be compatible with WABCO systems to restore factory pressure values.
How do I know if a repair kit is needed?
If there is a pressure drop in one circuit or if the braking response speed decreases, it may indicate that internal valve components need renewal.
What are the OE reference numbers of this part?
303.02.0032.02 directly replaces WABCO OE number 9347149222.