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81521166068 Relay Valve Compatible with MAN

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81521166068 Relay Valve for MAN

303.01.0003

Summary

This heavy-duty relay valve is designed for MAN heavy commercial vehicles. It features M22x1.5 and M16x1.5 VOSS port configurations and operates at a maximum pressure of 10 BAR to ensure reliable pneumatic brake system performance. Equivalent to OE MAN 81521166068.

Product identifiers
EAN Code8699031064338
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Compatible OEM Codes

  • MAN
    • 81.52116-9067
    • 81.52116-6069
    • 81.52116-6068
    • 81.52116-6067
  • MERCEDES BENZ
    • 004 429 11 44
    • 004 429 06 44
  • WABCO
    • 973 006 001 0
  • SCANIA
    • 1935645
  • RENAULT TRUCKS
    • 5021170458
  • DAF
    • 1505150
  • ALEXANDER DENNIS
    • DP002130

Description

What does a relay valve do?

This relay valve plays a critical role in the pneumatic braking system by controlling the application of brake pressure to the actuators. Built with high-strength components, it ensures precise air distribution and rapid response times under heavy-duty operating conditions.

Vehicle compatibility and specifications

This component is specifically designed for compatibility with MAN trucks. It features technical specifications including M22x1.5 VOSS ports (Port 1 and Port 2) and an M16x1.5 VOSS port (Port 4), supporting a maximum operating pressure of 10 BAR.

Installation and maintenance

For workshop technicians, verifying port sizes and pressure ratings is essential during installation to prevent system leaks or pressure drops. Regular inspection of the pneumatic connections and valve seating ensures continued reliability within the brake circuit.

Troubleshooting and selection

Consult your authorized distributor to confirm exact fitment for your specific vehicle model.

OE cross-reference

303.01.0003 (Relay Valve Relay Valves) is the equivalent of the MAN OE number. This part directly replaces MAN OE number 81521166068.

Technical Specifications

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

Other OEMs

ALEXANDER DENNIS

  • DP002130

DAF

  • 1505150

MAN

  • 81521169067
  • 81521166069
  • 81521166068
  • 81521166067
  • 81.52116.6068
  • 81.52116.6067
  • 81.52116-9067
  • 81.52116-6069
  • 81.52116-6068
  • 81.52116-6067

MERCEDES BENZ

  • A0044291144
  • A0044290644
  • 0044291144
  • 0044290644
  • 004.429.1144
  • 004.429.11.44
  • 004.429.0644
  • 004.429.06.44
  • 004 429 1144
  • 004 429 0644
  • 004 429 11 44
  • 004 429 06 44

RENAULT TRUCKS

  • 5021170458

SCANIA

  • 1935645

WABCO

  • 9730060010
  • 973.006.001.0
  • 973 006 001 0

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
ALEXANDER DENNIS
DAF
MAN
MERCEDES BENZ
RENAULT TRUCKS
SCANIA
WABCO

FAQ

What is the function of this relay valve?
The relay valve manages air pressure within the braking system, ensuring that braking force is applied accurately and promptly to the vehicle's brakes.
What are the port specifications for this component?
The unit features two M22x1.5 VOSS ports (Port 1 and Port 2) and one M16x1.5 VOSS port (Port 4) for standard pneumatic connections.
What is the maximum operating pressure?
This component is engineered to operate safely at a maximum pressure of 10 BAR within the brake system.
Which vehicle types is this compatible with?
This specific part is designed to be compatible with MAN heavy commercial vehicles.
What are the OE reference numbers of this part?
303.01.0003 directly replaces MAN OE number 81521166068.