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301.02.0040 LIEBHERR Complete, Air Dryer Valve — LIEBHERR

301.02.0040

Summary

●Heater: 24 V ●Port 1: M22x1,5 ●Port 21: M22x1,5 ●Pressure: 8,1 BAR ●Port 22: M12x1,5 ●Port 4/23: -

EAN Code8699031075372
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Description

The high-strength components of this air dryer valve assembly ensure reliable pneumatic performance in demanding heavy commercial vehicle environments. Designed for the brake system, this complete unit provides essential moisture and contaminant filtration to maintain stable air pressure.

301.02.0040 is the OE-equivalent of the LIEBHERR 502658308 complete, air dryer valve used in MAN, NISSAN UD TRUCK, and WABCO compatible systems. This part is engineered to meet the strict requirements of heavy-duty truck applications and specialized vehicle architectures.

Workshop technicians can rely on the precise dimensions of the port specifications—including Port 1 (M22x1,5) and Port 21 (M22x1,5)—for seamless assembly. The unit is designed for a 24 V heater system and maintains optimal operation at a pressure of 8,1 BAR to ensure long-term system integrity during routine maintenance cycles.

Technical Specifications

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

Other OEMs

LIEBHERR

  • 502658308

MAN

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

NISSAN UD TRUCK

  • 475409X402

WABCO

  • 432 410 200 0
  • 432.410.200.0
  • 4324102000

Related Products

Vehicles Used

BrandModelEngine
KENWORTH
LIEBHERR
MAN
MAN NEOPLAN
MERITOR
NEOPLAN
NISSAN UD TRUCK
PETERBILT
WABCO

FAQ

Which vehicle makes is this part compatible with?
This complete air dryer valve is compatible with MAN (81.52102-6 way to go), LIEBHERR (5026583), NISSAN UD TRUCK (475409X4), and WABCO (432 410 200 0) systems.
What are the technical port specifications for this unit?
The unit features Port 1 at M22x1,5, Port 21 at M22x1,5, and Port 22 at M12x1,5 for precise installation in heavy commercial vehicles.
Does this component operate on a standard voltage?
Yes, this complete air dryer valve is designed for a 24 V heater system to ensure proper functionality in heavy-duty truck systems.
Can this part be used as an OE equivalent for MAN models?
Yes, it serves as an equivalent for several MAN references including 81.521 own series such as 81.521 than 6; as well as NISSAN UD TRUCK models.
What is the operating pressure for this air dryer valve?
The component is engineered to operate effectively at a pressure of 8,1 BAR within the pneumatic braking system.