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301.01.0021 Unloader Valves — DAF / IVECO / SCANIA

301.01.0021

Summary

Port 1: M22x1,5 | Port 21: M22x1,5 | Cut-Out Pressure: 9,5 BAR / 0,2 BAR | Plugged: OK | Inflation Valve: OK | Recycle Valve: OK | Port 22: FITTING/KÖR TAPA. High-strength components for heavy-duty brake systems.

EAN Code8683457011069
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Description

The heavy-duty unloader valve is a critical component within the pneumatic brake system, ensuring precise pressure regulation and system stability. Designed with high-strength components, this part manages the inflation and recycling processes to maintain optimal operating pressures during vehicle operation.

301.01.0021 is the OE-equivalent of the DAF 1505480, IVECO 02517678, 02517784, 02521210, RENAULT TRUCKS 5000809518, SCANIA 1935692, and WABCO 975 303 480 0 unloader valves used in heavy commercial vehicles. This part is engineered to meet the rigorous standards of modern commercial transport systems.

Workshop technicians should ensure that the M22x1,5 port connections are securely seated to prevent pressure leaks. This component is designed for seamless integration into existing pneumatic circuits, supporting reliable performance in demanding environments. Regular maintenance of the brake system and checking the cut-out pressure settings is recommended for optimal safety and longevity.

Technical Specifications

Port 1M22x1,5
Port 4-
Port 21M22x1,5
Port 23-
PluggedOK
Cut-Out Pressure9,5 BAR / 0,2 BAR
Inflation ValveOK
Recycle ValveOK
Port 22FITTING/KÖR TAPA

Other OEMs

DAF

  • 1505480

IVECO

  • 02517678
  • 02517784
  • 02521210

RENAULT TRUCKS

  • 5000809518

SCANIA

  • 1935692

WABCO

  • 975 303 480 0
  • 9753034800

Related Products

Vehicles Used

BrandModelEngine
DAF
IVECO
PACCAR
RENAULT TRUCKS
SCANIA
WABCO

FAQ

What are the compatible OEM numbers for this unloader valve?
This part is compatible with DAF 1505480, IVECO 02517678, 02517784, 02521210, RENAULT TRUCKS 500 own_code 500_series (specifically 500_series/R_TRUCKS), SCANIA 1935692, and WABCO 975 303 480 0.
Which vehicle makes can use this product?
This unloader valve is designed for heavy commercial vehicles from DAF, IVECO, PACCAR, RENAULT TRUCKS, and SCANIA.
What are the port specifications for installation?
The unit features Port 1 (M22x1,5) and Port 21 (M22x1,5). Port 22 is provided as a FITTING/KÖR TAPA.
Does this part meet heavy-duty requirements?
Yes, it is constructed with heavy-duty grade materials to ensure durability in pneumatic brake systems.
What is the cut-out pressure for this component?
The specified cut-out pressure for this unloader valve is 9,5 BAR / 0,2 BAR.