303.01.0008 Relay Valve
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303.01.0008 Relay Valve — SCANIA

303.01.0008

Summary

The 303.01.0008 Relay Valve is a precision-engineered component designed for heavy commercial vehicle brake systems. It features Port 1 (M22x1,5), Port 3 (M22x1,5), Port 21 (M16x1,5), Port 22 (M16x1,5), and Port 4 (M16x1,5) configurations, engineered to operate at a maximum pressure of 13 BAR for reliable pneumatic performance.

EAN Code8699031083629
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Description

This relay valve is engineered to provide reliable pneumatic control within the braking system of heavy-duty vehicles. Designed to handle high-pressure demands, it ensures consistent signal modulation and rapid response during braking operations. The component is built with high-strength components to maintain structural integrity under rigorous heavy commercial vehicle service conditions.

303.01.0008 is the OE-equivalent relay valve used in DAF (1504903), MAN (ZG.04656-0002), ProVia (PRO 011 002 0), SCANIA (1342598, 1350118, 1425183, 1935660), and WABCO (973 011 050 0) systems. This part is specifically engineered to meet the technical requirements of these major manufacturers to ensure seamless integration and safety.

Workshop technicians should verify all port connections before installation to ensure optimal performance. The unit features specific thread sizes including M22x1,5 for primary ports and M16x1,5 for secondary ports, supporting a maximum operating pressure of up to 13 BAR. Regular inspections of the pneumatic lines and port seals are recommended during routine heavy commercial vehicle maintenance to prevent pressure drops.

Technical Specifications

Port 1M22x1,5
Port 3M22x1,5
Port 21M16x1,5
Port 22M16x1,5
PressureMAX 13 BAR
Port 4M16x1,5

Other OEMs

DAF

  • 1504903

MAN

  • ZG.04656-0002
  • ZG.04656.0002
  • ZG046560002

ProVia

  • PRO 011 002 0

SCANIA

  • 1342598
  • 1350118
  • 1425183
  • 1935660

WABCO

  • 973 011 050 0
  • 973.011.050.0
  • 9730110500

Related Products

Repair Kits

Vehicles Used

BrandModelEngine
DAF
MAN
PACCAR
ProVia
SCANIA
WABCO

FAQ

What are the technical specifications for the connection ports?
The valve features Port 1 and Port 3 with M22x1,5 threads, while Ports 21, 22, and 4 utilize M16x1,5 threads for secure pneumatic connections.
Is this relay valve compatible with SCANIA vehicles?
Yes, this part is compatible with SCANIA models using OEM codes such as 1342598, 135 own 118, 1425183, and 193566.
Can this part be used as an equivalent for WABCO systems?
Yes, it is a direct OE-equivalent for WABCO system code 973 011 050 0.
What is the maximum operating pressure for this unit?
The relay valve is designed to operate safely at a maximum pressure of up to 13 BAR.
Which other manufacturers are compatible with this part?
This component is compatible with DAF (code 15049 much), MAN (code ZG.04656-0```json way), and ProVia (code PRO 011 0^2).