81521166074 Relay Valve for MAN Trucks
303.01.0002
Summary
This relay valve for MAN heavy commercial vehicles features high-strength components with M22x1.5 VOSS and M16x1.5 VOSS ports. It operates at a maximum pressure of 8.5 BAR and includes an integrated silencer to ensure efficient pneumatic brake system performance. Equivalent to OE MAN 81521166074.
| EAN Code | 8699031064321 |
|---|
Ready to Order
Compatible OEM Codes
-
MAN
- 81.52116-9075
- 81.52116-6076
- 81.52116-6075
- 81.52116-6074
-
MERCEDES BENZ
- 004 429 80 44
- 004 429 63 44
-
WABCO
- 973 006 003 0
-
SCANIA
- 1935646
-
ProVia
- PRO 011 003 0
-
DAF
- 1518267
Description
What does a relay valve do?
This relay valve serves as a critical component within the pneumatic braking system, managing air pressure distribution to ensure reliable braking response. Built with high-strength components, it is designed to withstand the rigorous demands of heavy commercial vehicle operations while maintaining consistent pressure regulation.Vehicle and engine compatibility
This specific unit is compatible with MAN trucks and meets the technical requirements for heavy-duty service. It features specialized M22x1.5 VOSS ports and an M16x1.5 VOSS port, ensuring precise air flow management within the vehicle's brake circuit.Installation and maintenance
For proper maintenance, technicians should inspect the silencer and port connections during routine inspections to prevent air leaks. Ensuring that the pressure remains within the 8.5 BAR limit helps maintain optimal braking performance and extends the service life of the pneumatic system components.System performance and selection
When replacing this component, verify that all port connections are secured to prevent pressure drops during braking maneuvers. Consult your authorized distributor for further technical guidance.OE cross-reference
303.01.0002 (Relay Valve Relay Valves) is the equivalent of the MAN OE number. This part directly replaces MAN OE number 81521166074.Technical Specifications
| Port 1 | M22x1,5 VOSS |
|---|---|
| Port 2 | M22x1,5 VOSS |
| Port 4 | M16x1,5 VOSS |
| Silencer | OK |
| Pressure | MAX 8.5 BAR |
| Port 3 | - |
Other OEMs
DAF
- 1518267
MAN
- 81521169075
- 81521169074
- 81521166076
- 81521166075
- 81521166074
- 81.52116.9075
- 81.52116.9074
- 81.52116.6076
- 81.52116.6075
- 81.52116.6074
- 81.52116-9075
- 81.52116-6076
- 81.52116-6075
- 81.52116-6074
MERCEDES BENZ
- A0044298044
- A0044296344
- 0044298044
- 0044296344
- 004.429.8044
- 004.429.80.44
- 004.429.6344
- 004.429.63.44
- 004 429 8044
- 004 429 6344
- 004 429 80 44
- 004 429 63 44
ProVia
- PRO 011 003 0
SCANIA
- 1935646
WABCO
- 9730060030
- 973.006.003.0
- 973 006 003 0
Related Products
Repair Kits
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| DAF | |||
| MAN | |||
| MERCEDES BENZ | |||
| ProVia | |||
| SCANIA | |||
| WABCO |
FAQ
What is the function of this relay valve?
It regulates air pressure within the pneumatic brake system to ensure consistent and responsive braking for heavy commercial vehicles.
What are the port specifications for this unit?
This component features M22x1.5 VOSS ports for primary connections and an M16x1.5 VOSS port, designed for high-pressure stability.
What is the maximum operating pressure?
The component is engineered to operate safely at a maximum pressure of 8.5 BAR within the vehicle's braking circuit.
How can I know if this valve fits my truck?
Check the compatibility list or verify that your current valve uses M22x1.5 and M16x1.5 VOSS threading patterns.
What are the OE reference numbers of this part?
303.01.0002 directly replaces MAN OE number 81521166074.