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305.01.0074-S Air Processing Unit Compatible with Knorr-Bremse

305.01.0074-S

Summary

This air processing unit is engineered for heavy commercial vehicle brake systems. It functions as a complete unit to manage air drying and pressure regulation, ensuring reliable pneumatic performance in harsh operating environments. Compatible with Knorr-Bremse systems. Equivalent to OE Knorr-Bremse ZB4774S.

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Compatible OEM Codes

  • KNORR-BREMSE
    • ZB 4774 S

Description

What does an air processing unit do?

The air processing unit serves as a critical component within the pneumatic brake system of heavy commercial vehicles. By integrating filtration, moisture removal, and pressure regulation into a single housing, it ensures that compressed air from the compressor is prepared for distribution to the brake, suspension, and auxiliary circuits.

System compatibility

This unit is designed to meet the requirements of heavy-duty applications, providing consistent air quality and pressure stability. It is compatible with Knorr-Bremse systems, ensuring seamless integration into existing pneumatic architectures for trucks and buses.

Maintenance and inspection

Technicians should inspect the unit during routine maintenance to ensure optimal moisture removal and pressure regulation. Replacing the unit when failure symptoms occur can prevent moisture contamination in the pneumatic lines and ensure the continued safety of the vehicle's braking performance.

OE cross-reference

305.01.0074-S (Air Processing Unit) is the equivalent of the Knorr-Bremse OE number. This part directly replaces Knorr-Bremse OE number ZB4774S.

Technical Specifications

Technical Specifications
Sensor-

Other OEMs

KNORR-BREMSE

  • ZB4774 S
  • ZB 4774 S

Related Products

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
KNORR-BREMSE

FAQ

What is the primary function of this air processing unit?
It integrates air drying, filtration, and pressure regulation into one housing to prepare compressed air for the vehicle's braking and suspension circuits.
Which vehicle classes is this part compatible with?
This component is designed specifically for heavy commercial vehicles, including trucks and buses, requiring reliable pneumatic systems.
Is this part compatible with Knorr-Bremse systems?
Yes, this air processing unit is engineered to be compatible with Knorr-Bremse systems found in heavy-duty vehicles.
What are common signs of a failing air processing unit?
Technicians may notice moisture in the air lines or inconsistent pressure regulation within the braking or suspension circuits.
What are the OE reference numbers of this part?
305.01.0074-S directly replaces Knorr-Bremse OE number ZB4774S.