303.07.0033 Compatible Levelling Valve
303.07.0033
Summary
This levelling valve is engineered for heavy-duty suspension stability. It features M12x1,5 port configurations and a 10 BAR pressure rating to ensure precise pneumatic regulation within the suspension system. Equivalent to OE Knorr-Bremse SV1323.
| EAN Code | 8683457012110 |
|---|
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Compatible OEM Codes
-
KNORR-BREMSE
- SV 1323
Description
What does a levelling valve do?
This levelling valve plays a critical role in maintaining the correct ride height and stability within pneumatic suspension systems. By regulating air pressure distribution, it ensures the vehicle maintains its intended stance even under varying load conditions, utilizing high-strength components for long-term durability.System compatibility
The component is compatible with Knorr-Bremse systems and is designed to meet rigorous heavy commercial vehicle requirements. It functions within the pneumatic suspension circuit to manage air distribution across the bellows or springs.Installation and maintenance
Installation requires attention to the specific port sizes, including the M12x1,5 connections (Port 1, Port 4, and two M12x1,5 ports at Port 21). Technicians should verify the 10 BAR pressure rating and ensure all connections are secure to prevent pneumatic leaks during operation.Troubleshooting guidance
Regular inspection of the valve housing and port seals is recommended to prevent pressure drops. Maintaining correct air quality in the system helps preserve the integrity of the internal mechanisms.OE cross-reference
303.07.0033 (Levelling Valve) is the equivalent of the Knorr-Bremse OE number. This part directly replaces Knorr-Bremse OE number SV1323.Technical Specifications
| Port 1 | M12x1,5 |
|---|---|
| Port 4 | M12x1,5 |
| Port 21 | M12x1,5 (x2) |
| Pressure | 10 BAR |
| Inner Hole Diameter | 21 / Ø 1,20 |
| Lever | - |
| Lever mm | ----- |
Other OEMs
KNORR-BREMSE
- SV1323
- SV 1323
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| KNORR-BREMSE |
FAQ
What is the function of this levelling valve?
This valve regulates air pressure within the suspension system to maintain a consistent vehicle height regardless of load changes.
What are the technical port specifications?
The unit features M12x1,5 ports (Port 1, Port 4, and two at Port 21) and operates at a rated pressure of 10 BAR.
Is this compatible with Knorr-Bremse systems?
Yes, this component is designed to be compatible with Knorr-Bremse systems used in heavy commercial vehicle suspensions.
What symptoms indicate a faulty levelling valve?
Inconsistent ride height, uneven vehicle leaning, or air leaks near the connection ports can indicate that the valve requires replacement.
What are the OE reference numbers of this part?
303.07.0033 directly replaces Knorr-Bremse OE number SV1323.