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81521166065 Relay Valve Compatible with MAN

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81521166065 Relay Valve for MAN Trucks

303.01.0004

Summary

This brake relay valve is designed for heavy commercial vehicle braking systems, featuring M22x1,5 and M16x1,5 VOSS port configurations. It is compatible with MAN systems and ensures reliable pressure management up to 10 bar. Equivalent to OE MAN 81521166065.

Product identifiers
EAN Code8699031064345
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Compatible OEM Codes

  • MAN
    • 81.52116-9071
    • 81.52116-9065
    • 81.52116-6065
    • 81.52116-6062
    • 81.52116-6061
    • 81.52116-6059
  • WABCO
    • 973 006 000 0
  • SCANIA
    • 1935644
  • RENAULT TRUCKS
    • 7701012770
  • IVECO
    • 08137884
  • DAF
    • 1505412

Description

What does a relay valve do?

This relay valve plays a critical role in the pneumatic brake system by managing air pressure distribution to ensure efficient braking performance. Built with high-strength components, it maintains precise control under heavy-duty operating conditions.

Vehicle compatibility

This component is compatible with MAN vehicles. It is specifically engineered to function within the complex pneumatic circuits of heavy commercial vehicles, ensuring consistent pressure regulation.

Installation and maintenance

Installation requires careful attention to the port connections, which include M22x1,5 VOSS and M16x1,5 VOSS interfaces. Technicians should verify that all connections are secure and that the system pressure does not exceed the maximum 10 bar limit during testing.

System inspection

Regular inspection of the valve ports and air lines is recommended to prevent leaks and maintain optimal braking response across the entire vehicle system.

OE cross-reference

303.01.0004 (Relay Valve Relay Valves) is the equivalent of the MAN OE number. This part directly replaces MAN OE number 81521166065.

Technical Specifications

Technical Specifications
Port 1M22x1,5 VOSS
Port 2M16x1,5 VOSS
Port 4M16x1,5 VOSS
PressureMAX 10 BAR

Other OEMs

DAF

  • 1505412

IVECO

  • 08137884

MAN

  • 81521169071
  • 81521169065
  • 81521166065
  • 81521166062
  • 81521166061
  • 81521166059
  • 81.52116.9071
  • 81.52116.9065
  • 81.52116.6065
  • 81.52116.6062
  • 81.52116.6061
  • 81.52116.6059
  • 81.52116-9071
  • 81.52116-9065
  • 81.52116-6065
  • 81.52116-6062
  • 81.52116-6061
  • 81.52116-6059

RENAULT TRUCKS

  • 7701012770

SCANIA

  • 1935644

WABCO

  • 9730060000
  • 973.006.000.0
  • 973 006 000 0

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
DAF
IVECO
MAN
RENAULT TRUCKS
SCANIA
WABCO

FAQ

What is the function of this relay valve?
The relay valve regulates air pressure within the braking system to ensure timely and consistent application of brakes in heavy commercial vehicles.
Which vehicle brands is this part compatible with?
This specific component is designed to be compatible with MAN vehicles and their associated pneumatic braking systems.
What are the technical port specifications?
The unit features M22x1,5 VOSS for Port 1, and M16x1,5 VOSS for both Port 2 and Port 4, supporting a maximum pressure of 10 bar.
How can I identify if a replacement is needed?
Technicians should look for symptoms such as inconsistent braking response or air leaks around the M22 or M16 VOSS connection points.
What are the OE reference numbers of this part?
303.01.0004 directly replaces MAN OE number 81521166065.