81521169074 Relay Valve for MAN Vehicles
303.01.0002
Summary
This high-strength relay valve is engineered for MAN heavy commercial vehicles. It features M22x1.5 and M16x1.5 VOSS port configurations and operates at a maximum pressure of 8.5 BAR to ensure reliable brake system performance. Equivalent to OE MAN 81521169074.
| 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 brake system, managing air pressure distribution to ensure efficient braking response. Built with heavy-duty grade materials, it is designed to withstand the high-pressure demands of heavy commercial vehicle braking cycles.Vehicle and engine compatibility
This component is specifically designed for use in MAN trucks. It maintains precise control within the pneumatic circuit, ensuring that braking force is delivered accurately across the vehicle's air lines.Installation and maintenance
The unit features M22x1.5 VOSS ports for primary connections and an M16x1.5 VOSS port, accompanied by an integrated silencer for optimal air exhaust management. Technicians should verify port thread specifications and maximum operating pressure of 8.5 BAR during installation to ensure system integrity.System performance
Regular inspection of the port connections and silencer functionality is recommended to prevent air leaks and maintain consistent braking performance throughout the vehicle service life.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 81521169074.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 manages air pressure within the braking system to ensure the correct amount of pressure reaches the brake chambers, improving response times.
What are the technical port specifications?
The unit is equipped with M22x1.5 VOSS ports (Port 1 and 2) and an M16x1.5 VOSS port (Port 4), designed for high-pressure stability.
What is the maximum operating pressure?
This relay valve is rated for a maximum operating pressure of 8.5 BAR to ensure safe and reliable operation in heavy commercial vehicles.
Which vehicle brands are compatible?
This specific component is designed to be compatible with MAN heavy commercial vehicles and their braking systems.
What are the OE reference numbers of this part?
303.01.0002 directly replaces MAN OE number 81521169074.