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81521026029 Air Dryer Valve for MAN Trucks

301.02.0040

Summary

This air dryer valve is designed for MAN heavy commercial vehicles. It features a 24 V heater and high-strength components including M22x1,5 and M12x1,5 ports to ensure reliable moisture removal within the air brake system. Equivalent to OE MAN 81521026029.

Product identifiers
EAN Code8699031075372
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Compatible OEM Codes

  • MAN
    • 81.52102-6081
    • 81.52102-6063
    • 81.52102-6062
    • 81.52102-6057
    • 81.52102-6029
    • 81.52102-6028
    • 81.52102-6027
  • WABCO
    • 432 410 200 0
  • NISSAN UD TRUCK
    • 475409X402
  • LIEBHERR
    • 502658308

Description

This air dryer valve plays a critical role in the air brake system by removing moisture and contaminants from the compressed air. By preventing water buildup, it protects downstream pneumatic components from corrosion and freezing, ensuring consistent braking performance for heavy commercial vehicles.

This specific component is compatible with MAN vehicles. It is engineered to meet rigorous operating standards, featuring a 24 V heater to prevent ice formation in cold climates and specific port configurations including M22x1,5 and M12x1,5 threads to ensure a secure fit within the pneumatic circuit.

For optimal performance, technicians should verify that all port connections are clean and that the 8.1 BAR pressure regulation remains within the manufacturer's specified range. Regular inspection of the valve housing and electrical connections for the heater is recommended during routine brake system maintenance.

Consult your authorized distributor.

OE cross-reference

301.02.0040 (Air Dryer Valve Air Dryer Valves) is the equivalent of the MAN OE number. This part directly replaces MAN OE number 81521026029.

Technical Specifications

Technical Specifications
Heater24 V
Port 1M22x1,5
Port 21M22x1,5
Pressure8,1 BAR
Port 22M12x1,5
Port 4/23-

Other OEMs

LIEBHERR

  • 502658308

MAN

  • 81521026081
  • 81521026063
  • 81521026062
  • 81521026057
  • 81521026029
  • 81521026028
  • 81521026027
  • 81.52102.6081
  • 81.52102.6063
  • 81.52102.6062
  • 81.52102.6057
  • 81.52102.6029
  • 81.52102.6028
  • 81.52102.6027
  • 81.52102-6081
  • 81.52102-6063
  • 81.52102-6062
  • 81.52102-6057
  • 81.52102-6029
  • 81.52102-6028
  • 81.52102-6027

NISSAN UD TRUCK

  • 475409X402

WABCO

  • 4324102000
  • 432.410.200.0
  • 432 410 200 0

Related Products

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
LIEBHERR
MAN
NISSAN UD TRUCK
WABCO

FAQ

What is the function of this air dryer valve?
It removes moisture and contaminants from compressed air to protect the air brake system from corrosion and freezing.
Which vehicle makes is this part compatible with?
This component is designed for use in MAN heavy commercial vehicles.
Does this valve include a heater?
Yes, this model features a 24 V heater to assist in preventing moisture freeze-up during operation.
What are the connection specifications?
The unit features M22x1,5 and M12x1,5 ports to ensure precise integration into the vehicle's pneumatic lines.
What are the OE reference numbers of this part?
301.02.0040 directly replaces MAN OE number 81521026029.