303.01.0008.03 Compatible Relay Valve Repair Kit
303.01.0008.03
Summary
This relay valve repair kit is designed to restore the performance of air brake relay valves. It ensures precise air delivery to brake chambers in DAF, Scania, and MAN trucks. Compatible with WABCO systems and Provia components, this kit provides a reliable solution for maintaining heavy commercial vehicle braking systems. Equivalent to OE WABCO 9730110500S2.
| EAN Code | 8683457002944 |
|---|
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Compatible OEM Codes
-
WABCO
- 973 011 050 0 S2
Description
What does a relay valve repair kit do?
A relay valve repair kit is a critical overhaul component that directly affects the speed and balance of rear axle brake response. By replacing worn internal elements, this kit helps ensure that air is delivered efficiently to the brake chambers, preventing delays in braking action. Using high-strength components helps maintain the integrity of the pneumatic circuit under heavy-duty operating conditions.Compatible vehicles and systems
This service kit is designed for use in heavy commercial vehicles, specifically providing fitment for DAF, Scania, and MAN trucks. It is engineered to be compatible with WABCO systems and Provia components, ensuring that the relay valve functions according to original specifications without requiring a full valve replacement.Maintenance and installation
When performing maintenance, technicians should carefully inspect the valve body to ensure correct matching. Replacing the internal seals and diaphragms can resolve common issues such as air leaks or slow brake response. For optimal results, ensure all surfaces are clean during the assembly of the new components.Troubleshooting brake response
Regular inspection of the pneumatic system can help identify when a rebuild is necessary. Maintaining these components helps prevent uneven braking across the axles and ensures the safety of the vehicle during heavy-duty operations.OE cross-reference
303.01.0008.03 (Relay Valve Repair Kit Relay Valves) is the equivalent of the WABCO OE number. This part directly replaces WABCO OE number 9730110500S2.Other OEMs
WABCO
- 9730110500S2
- 973 011 050 0 S2
Related Products
Used In
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| DAF | |||
| MAN | |||
| ProVia | |||
| SCANIA | |||
| WABCO |
FAQ
What is the purpose of a relay valve repair kit?
The kit provides necessary components to overhaul a relay valve, restoring its ability to deliver fast and balanced air to the brake chambers in heavy commercial vehicles.
Which vehicle brands can use this repair kit?
This kit is compatible with DAF, Scania, and MAN trucks, specifically designed for use within WABCO systems.
When should I replace the relay valve repair kit?
It should be replaced if you notice air leaks or a delay in the vehicle's braking response caused by worn internal seals or diaphragms.
Can this kit be used with any relay valve?
It is designed for specific WABCO systems; always verify compatibility with your specific valve type before installation.
What are the OE reference numbers of this part?
303.01.0008.03 directly replaces WABCO OE number 9730110500S2.