301.01.0008 Unloader Valves
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301.01.0008 Unloader Valves — WABCO Compatible

301.01.0008

Summary

●Port 1: M22x1,5 ●Port 4: - ●Port 21: M22x1,5 ●Port 22: M12x1,5 ●Port 23: - ●Plugged: ✓ ●Cut-Out Pressure: 8,1 BAR / 0,2 BAR ●Inflation Valve: - ●Recycle Valve: ✓

EAN Code8683457010932
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Description

The technical function of this unloader valve is critical for maintaining precise pneumatic pressure within the brake system of heavy commercial vehicles. Designed with high-strength components, it ensures stable air regulation and system durability under demanding operating conditions.

301.01.0008 is the OE-equivalent of the WABCO 975 303 060 0 unloader valve used in CASE, DAF, FAUN, FREIGHTLINER, JOHN DEERE, KENWORTH, MACK, MERITOR, NEOPLAN, NISSAN UD TRUCK, PETERBILT, SCANIA, VDL, VOLVO, and WABCO systems. This part maintains strict compatibility with the specified OEM requirements for reliable performance.

Designed for the workshop technician, this component features Port 1 (M22x1,5) and Port 21 (M22x1,5) for secure assembly. The integrated recycle valve functionality and specific cut-out pressure of 8,1 BAR / 0,2 BAR make it an essential part for maintaining pneumatic system integrity during routine maintenance and service intervals.

Proper installation and regular inspection of the port connections are recommended to ensure optimal function within the brake system architecture.

Technical Specifications

Port 1M22x1,5
Port 4-
Port 21M22x1,5
Port 22M12x1,5
Port 23-
PluggedOK
Cut-Out Pressure8,1 BAR / 0,2 BAR
Inflation Valve-
Recycle ValveOK
Port 1-2-

Other OEMs

CASE

  • T103977

DAF

  • 100587
  • 658098

FAUN

  • 1614594

FREIGHTLINER

  • TDAS9753030600

JOHN DEERE

  • AL110648

KENWORTH

  • S9753030600

MACK

  • 6300-9753030600

MERITOR

  • S 9753030600

NEOPLAN

  • 1102441544303

NISSAN UD TRUCK

  • 475409X400

SCANIA

  • 2090400

VDL

  • 190409
  • 20190409

VOLVO

  • 12748716
  • 6778243

WABCO

  • 975 303 060 0
  • 9753030600

Related Products

Repair Kits

Vehicles Used

BrandModelEngine
CASE
DAF
FAUN
FREIGHTLINER
JOHN DEERE
KENWORTH
MACK
MERITOR
NEOPLAN
NISSAN UD TRUCK
PETERBILT
SCANIA
VDL
VOLVO
WABCO

FAQ

What are the compatible OEM numbers for this unloader valve?
This part is compatible with CASE T103977, DAF 100587, DAF 658098, FAUN 1614594, FREIGHTLINER TDAS9753030600, JOHN DEERE AL110648, KENWORTH S9753030600, MACK 6300-9753 own/9753/etc (full list includes WABCO 975 303 06 0 and VOLVO 6778243).
Which vehicle makes are compatible with this part?
It is designed for heavy commercial vehicles including SCANIA, VOLVO, DAF, MACK, KENWORTH, and VDL.
What is the cut-out pressure specification?
The unit operates with a cut-out pressure of 8,1 BAR / 0,2 BAR.
What are the port sizes for installation?
The unit features Port 1 at M22x1,5 and Port 21 at M22x1,5; Port 22 is M12x1,5.
Does this part include a recycle valve?
Yes, this unloader valve is equipped with a functional recycle valve.