303.05.0021 Trailer Control Valve
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303.05.0021 IVECO Compatible Trailer Control Valve

303.05.0021

Summary

The 303.05.0021 Trailer Control Valve is a high-precision component designed for heavy commercial vehicle brake systems. Featuring multiple M16x1,5 ports (Port 12, 22, 11, 41, 42, 44), it ensures reliable pneumatic control and durability in demanding environments.

EAN Code8683457009929
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Compatible OEM Codes

  • IVECO 4792629 4781489
  • WABCO 973 002 523 0
  • MERCEDES BENZ 002 431 17 05

Description

The 303.05.0021 is a specialized component engineered to regulate pneumatic flow within the brake system of heavy commercial vehicles. This part plays a critical role in managing air pressure distribution to ensure stable braking performance and safety during transit. Designed with high-strength components, it is built to withstand the rigorous operational demands of the heavy vehicle sector.

This product serves as the OE-equivalent for IVECO (4781489, 4792629), MERCEDES BENZ (002 431 17 05), and WABCO (973 002 523 0) systems. The 303.05.0021 is the OE equivalent of the WABCO Trailer Control Valve used in IVECO and MERCEDES BENZ heavy commercial vehicle applications. It is engineered for seamless integration with original braking hardware to maintain optimal system pressure.

Workshop technicians can rely on this unit for its precise fitment and standardized port sizes, specifically the M16x1,5 threading on ports 12, 2 2, 11, 41, 42, and 44. Proper installation and regular maintenance of the pneumatic lines are recommended to ensure long-term reliability in the field. This component is essential for maintaining the braking integrity of professional fleets.

Technical Specifications

Port 12M16x1,5
Port 22M16x1,5
Port 11M16x1,5
Port 41M16x1,5
Port 42M16x1,5
Port 44M16x1,5

Other OEMs

IVECO

  • 4792629
  • 4781489

MERCEDES BENZ

  • A0024311705
  • 002 431 17 05

WABCO

  • 9730025230
  • 973 002 523 0

Related Products

Repair Kits

Vehicles Used

BrandModelEngine
IVECO
MERCEDES BENZ
WABCO

FAQ

Which OEM numbers is this part compatible with?
This part is compatible with IVECO (4781489, 4792629), MERCEDES BENZ (002 431 17 05), and WABCO (973 002 523 0).
What are the technical port specifications for this valve?
The valve features six ports (Port 12, 22, 11, 41, 42, and 44), all utilizing an M16x1,5 thread size for secure connections.
Is this part suitable for heavy commercial vehicles?
Yes, it is designed specifically for the heavy commercial vehicle sector to ensure reliable pneumatic brake control.
Can I use this as an equivalent for WABCO systems?
Yes, it serves as a high-quality equivalent for WABCO system reference number 973 002 523 0.
Does this part require specific maintenance?
As a pneumatic component, it is recommended that workshop technicians check all M16x1,5 connections during routine brake system inspections.