644521 Levelling Valve for DAF Trucks
303.07.0008
Summary
This heavy-duty levelling valve is designed for DAF heavy commercial vehicles. It features M12x1.5 port sizes, a 90 mm lever, and a 6.2 mm lever opening to ensure precise air suspension height regulation. Equivalent to OE DAF 644521.
| EAN Code | 8699031064185 |
|---|
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Compatible OEM Codes
-
DAF
- 644521
-
BOSCH
- 0 500 005 006
Description
What does a levelling valve do?
This levelling valve plays a critical role in the air suspension system by maintaining the correct vehicle ride height. It operates through a mechanical linkage to regulate air pressure within the bellows, ensuring stability and load distribution under heavy commercial vehicle operating conditions.Vehicle compatibility
This component is specifically designed for compatibility with DAF vehicles. It ensures precise height adjustment for the chassis or cabin suspension, helping to maintain optimal vehicle posture during various load configurations.Installation and maintenance
The unit is engineered with technical specifications including M12x1.5 port sizes and a 90 mm lever with a 6.2 mm opening. For proper installation, technicians should verify that all pneumatic connections are secure and the lever movement is unobstructed to ensure accurate sensor feedback.System performance
Regular inspection of the lever linkage and port seals is recommended to prevent air leaks or inaccurate height readings in the suspension system.OE cross-reference
303.07.0008 (Levelling Valve) is the equivalent of the DAF OE number. This part directly replaces DAF OE number 644521.Technical Specifications
| Port 1 | M12x1,5 |
|---|---|
| Port 2 | M12x1,5 (x2) |
| Port 3 | M12x1,5 |
| Lever | 90 mm |
| Lever Opening | 6,2 mm |
Other OEMs
BOSCH
- 0500005006
- 0.500.005.006
- 0 500 005 006
DAF
- 644521
Related Products
Repair Kits
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| BOSCH | |||
| DAF |
FAQ
What is the function of this levelling valve?
It regulates air pressure in the suspension system to maintain constant vehicle ride height regardless of the load.
Which vehicle types are compatible?
This part is designed for use in DAF heavy commercial vehicles, specifically within their air suspension systems.
What are the technical port specifications?
The valve features M12x1.5 port sizes (Port 1, Port 2, and Port 3) to ensure standard pneumatic integration.
How can I identify a failing levelling valve?
Symptoms may include uneven vehicle leaning, inconsistent ride height, or visible air leaks near the lever or ports.
What are the OE reference numbers of this part?
303.07.0008 directly replaces DAF OE number 644521.