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303.02.0018.01 Knorr-Bremse compatible repair kit for protection valves

303.02.0018.01

Summary

This multi-circuit protection valve repair kit is designed for heavy commercial vehicle brake systems. It ensures reliable performance by renewing internal components within protection valves compatible with Knorr-Bremse systems to maintain balanced air supply. Equivalent to OE Knorr-Bremse AE4505S1.

Product identifiers
EAN Code8699031086958
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Compatible OEM Codes

  • KNORR-BREMSE
    • II38797FN50 S1
    • II36008 S1
    • II31163N S1
    • AE 4506 S1
    • AE 4505 S1

Description

This repair kit is engineered to restore the functionality of multi-circuit protection valves within heavy commercial vehicle brake systems. By renewing the internal components, the kit helps maintain the critical circuit-prioritization required for safe braking performance.

The kit is compatible with Knorr-Bremse systems and is designed to address air leaks or pressure imbalances. It provides a reliable solution for maintaining independent air supply to the service brake, parking brake, and auxiliary circuits without the need for a full valve replacement.

Technicians should inspect the valve during routine brake system maintenance. When replacing internal seals or diaphragms, ensure all components are clean and seated correctly to prevent pressure drops in the pneumatic circuits. Consult your authorized distributor for installation guidance.

OE cross-reference

303.02.0018.01 (Multi-circuit Protection Valve Repair Kit) is the equivalent of the Knorr-Bremse OE numbers. This part directly replaces Knorr-Bremse OE numbers AE4505S1, AE4506S1, II31163NS1, II36008S1, II38797FN50S1.

Other OEMs

KNORR-BREMSE

  • AE4506S1
  • AE4505S1
  • II38797FN50 S1
  • II36008 S1
  • II31163N S1
  • AE 4506 S1
  • AE 4505 S1

Related Products

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
KNORR-BREMSE

FAQ

What does a multi-circuit protection valve repair kit do?
The kit renews the internal components such as diaphragms and seals, restoring the independent and balanced air supply to the service and parking brake circuits.
Is this kit compatible with Knorr-Bremse systems?
Yes, this repair kit is designed to be compatible with Knorr-Bremse multi-circuit protection valves used in heavy commercial vehicle braking systems.
When should a repair kit be used?
A repair kit should be used when internal leaks are detected or when the valve fails to maintain proper circuit prioritization during pneumatic testing.
Does this kit include all necessary components?
The kit includes the essential internal elements required to restore the valve's original function, ensuring reliable pressure distribution across all circuits.
What are the OE reference numbers of this part?
303.02.0018.01 directly replaces Knorr-Bremse OE numbers AE4505S1, AE4506S1, II31163NS1, II36008S1, II38797FN50S1.