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81521026023 Air Dryer Valve Compatible with MAN

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81521026023 Compatible Air Dryer Valve for MAN

301.02.0039

Summary

This 24V air dryer valve is engineered for MAN heavy commercial vehicle brake systems. It features M22x1.5 and M12x1.5 port configurations and is designed to operate at 8.1 BAR to ensure reliable moisture removal and system protection. Equivalent to OE MAN 81521026023.

Product identifiers
EAN Code8699031075327
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Compatible OEM Codes

  • MAN
    • 99.10036-0471
    • 88.52102-6001
    • 81.52102-6048
    • 81.52102-6029
    • 81.52102-6027
    • 81.52102-6023
    • 81.52101-6029
  • NEOPLAN
    • 1102734544140
    • 110273400
    • 11017447
  • IRISBUS
    • 980829
    • 500004419
  • WABCO
    • 432 410 102 0
  • SCANIA
    • 1932680
  • NISSAN UD TRUCK
    • 47540D6400
  • MERCEDES BENZ
    • 29AD002
  • LIEBHERR
    • 502656508
  • KÖGEL
    • 322795
  • DAF
    • 1505967

Description

What does an air dryer valve do?

This air dryer valve plays a critical role in maintaining the integrity of the pneumatic brake system by managing air quality. By regulating pressure and ensuring the removal of contaminants, it protects downstream components from moisture-related corrosion and freezing, which is vital for heavy commercial vehicle safety.

Vehicle and engine compatibility

This specific unit is compatible with MAN vehicles and ensures consistent performance under demanding operating conditions. It features a 24 V heater to prevent moisture buildup in cold climates, with port sizes including M22x1.5 and M12x1.5, facilitating seamless integration into the existing pneumatic circuit.

Installation and maintenance

For workshop technicians, proper installation involves verifying the M22x1.5 and M12x1.5 thread matches and ensuring the 8.1 BAR operating pressure is within specification. Regular inspection of the valve housing and connections helps prevent air leaks and ensures long-term reliability of the braking system.

Troubleshooting guidance

Consult your authorized distributor.

OE cross-reference

301.02.0039 (Air Dryer Valve Air Dryer Valves) is the equivalent of the MAN OE number. This part directly replaces MAN OE number 81521026023.

Technical Specifications

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

Other OEMs

DAF

  • 1505967

IRISBUS

  • 980829
  • 500004419

KÖGEL

  • 322795

LIEBHERR

  • 502656508

MAN

  • 99100360471
  • 88521026001
  • 81521026048
  • 81521026029
  • 81521026027
  • 81521026023
  • 81521016029
  • 99.10036-0471
  • 88.52102-6001
  • 81.52102-6048
  • 81.52102-6029
  • 81.52102-6027
  • 81.52102-6023
  • 81.52101-6029

MERCEDES BENZ

  • A00029AD002
  • 29AD002

NEOPLAN

  • 1102734544140
  • 110273400
  • 11017447

NISSAN UD TRUCK

  • 47540D6400

SCANIA

  • 1932680

WABCO

  • 4324101020
  • 432.410.102.0
  • 432 410 102 0

Related Products

Repair Kits

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
DAF
IRISBUS
KÖGEL
LIEBHERR
MAN
MERCEDES BENZ
NEOPLAN
NISSAN UD TRUCK
SCANIA
WABCO

FAQ

What is the primary function of this air dryer valve?
It manages the air quality in the braking system by helping to remove moisture and contaminants, preventing corrosion in pneumatic lines.
Is this valve compatible with MAN vehicles?
Yes, this component is designed for compatibility with MAN heavy commercial vehicle systems.
What are the technical port specifications for this unit?
The valve features M22x1.5 ports (Port 1 and Port 21) and an M12x1.5 port (Port 22).
What voltage is required for the integrated heater?
This air dryer valve is equipped with a 24 V heater to assist in preventing moisture freeze-up.
What are the OE reference numbers of this part?
301.02.0039 directly replaces MAN OE number 81521026023.