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303.02.0016.01 Knorr-Bremse compatible repair kit

303.02.0016.01

Summary

This multi-circuit protection valve repair kit is designed for the maintenance of pneumatic brake systems in DAF and Iveco heavy commercial vehicles. It ensures reliable circuit separation and air distribution, maintaining safety in critical braking components. Equivalent to OE Knorr-Bremse AE4502S1.

Product identifiers
EAN Code8699031080796
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Compatible OEM Codes

  • KNORR-BREMSE
    • K050701N50 S1
    • K050701N00 S1
    • K048308N50 S1
    • K048307N50 S1
    • K011932N50 S1
    • K011932004 S1
    • K011931 S1
    • K001001N50 S1
    • II39010FN52 S1
    • II39010FN50 S1
    • II39010FN00 S1
    • II39010F004 S1
    • II39010F S1
    • II38749FN52 S1
    • II38749FN50 S1
    • II38749FN00 S1
    • II38749FM2 S1
    • II38749F0041 S1
    • II38749F004 S1
    • II38749F S1
    • II38745F S1
    • II37679 S1
    • II37464N52 S1
    • II37464N50 S1
    • AE 4565 S1
    • AE 4563 S1
    • AE 4562 S1
    • AE 4561 S1
    • AE 4560 S1
    • AE 4546 S1
    • AE 4544 S1
    • AE 4534 S1
    • AE 4529 S1
    • AE 4528 S1
    • AE 4528 S S1
    • AE 4527 S1
    • AE 4526 S1
    • AE 4516 S1
    • AE 4516 S S1
    • AE 4503 S1
    • AE 4502 S1

Description

What does a repair kit do?

This multi-circuit protection valve repair kit provides a comprehensive set of replacement components designed to overhaul the multi-circuit protection valve within a heavy commercial vehicle's pneumatic brake system. By renewing internal elements, this kit helps maintain the vital function of managing multiple air lines from a single housing, ensuring that even if a leak occurs in one circuit, the remaining braking and auxiliary circuits remain operational.

Vehicle compatibility and application

The kit is compatible with DAF and Iveco vehicles, supporting the essential air distribution between the service brake, parking brake, and suspension systems. This allows workshop technicians to restore internal sealing and circuit separation effectively without the need to replace the entire valve assembly.

Installation and maintenance guidance

For proper maintenance, technicians should inspect the internal diaphragms, O-rings, and seals during routine pneumatic system service. Replacing these components helps prevent pressure loss and ensures that the circuit prioritization remains accurate under heavy-duty operating conditions. Consult your authorized distributor for more information.

OE cross-reference

303.02.0016.01 (Multi-circuit Protection Valve Repair Kit) is the equivalent of the Knorr-Bremse OE numbers. This part directly replaces Knorr-Bremse OE numbers AE4502S1, AE4503S1, AE4516SS1, AE4516S1, AE4526S1, AE4527S1, AE4528SS1, AE4528S1, AE4529S1, AE4534S1, AE4544S1, AE4546S1, AE4560S1, AE4561S1, AE4562S1, AE4563S1, AE4565S1, II37464N50S1, II37464N52S1, II37679S1, II38745FS1, II38749FS1, II38749F004S1, II38749F0041S1, II38749FM2S1, II38749FN00S1, II38749FN50S1, II38749FN52S1, II39010FS1, II39010F004S1, II39010FN00S1, II39010FN50S1, II39010FN52S1, K001001N50S1, K011931S1, K011932004S1, K011932N50S1, K048307N50S1, K048308N50S1, K050701N00S1, K050701N50S1.

Other OEMs

KNORR-BREMSE

  • AE4565S1
  • AE4563S1
  • AE4562S1
  • AE4561S1
  • AE4560S1
  • AE4546S1
  • AE4544S1
  • AE4534S1
  • AE4529S1
  • AE4528SS1
  • AE4528S1
  • AE4527S1
  • AE4526S1
  • AE4516SS1
  • AE4516S1
  • AE4503S1
  • AE4502S1
  • K050701N50 S1
  • K050701N00 S1
  • K048308N50 S1
  • K048307N50 S1
  • K011932N50 S1
  • K011932004 S1
  • K011931 S1
  • K001001N50 S1
  • II39010FN52 S1
  • II39010FN50 S1
  • II39010FN00 S1
  • II39010F004 S1
  • II39010F S1
  • II38749FN52 S1
  • II38749FN50 S1
  • II38749FN00 S1
  • II38749FM2 S1
  • II38749F0041 S1
  • II38749F004 S1
  • II38749F S1
  • II38745F S1
  • II37679 S1
  • II37464N52 S1
  • II37464N50 S1
  • AE 4565 S1
  • AE 4563 S1
  • AE 4562 S1
  • AE 4561 S1
  • AE 4560 S1
  • AE 4546 S1
  • AE 4544 S1
  • AE 4534 S1
  • AE 4529 S1
  • AE 4528 S1
  • AE 4528 S S1
  • AE 4527 S1
  • AE 4526 S1
  • AE 4516 S1
  • AE 4516 S S1
  • AE 4503 S1
  • AE 4502 S1

Related Products

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
DAF
IVECO
KNORR-BREMSE

FAQ

What is the function of this repair kit?
This kit restores the internal sealing and circuit separation of a multi-circuit protection valve, ensuring air is correctly distributed between braking and auxiliary circuits.
Which vehicle brands is this compatible with?
This specific kit is designed for use in DAF and Iveco heavy commercial vehicles.
Can this be used to fix air leaks in the brake system?
Yes, by replacing worn diaphragms and O-rings within the valve, this kit helps resolve leaks within the multi-circuit protection unit.
When should the valve components be replaced?
Technicians should consider using this kit during scheduled pneumatic system inspections or when signs of pressure loss in specific circuits are detected.
What are the OE reference numbers of this part?
303.02.0016.01 directly replaces Knorr-Bremse OE numbers AE4502S1, AE4503S1, AE4516SS1, AE4516S1, AE4526S1, AE4527S1, AE4528SS1, AE4528S1, AE4529S1, AE4534S1, AE4544S1, AE4546S1, AE4560S1, AE4561S1, AE4562S1, AE4563S1, AE4565S1, II37464N50S1, II37464N52S1, II37679S1, II38745FS1, II38749FS1, II38749F004S1, II38749F0041S1, II38749FM2S1, II38749FN00S1, II38749FN50S1, II38749FN52S1, II39010FS1, II39010F004S1, II39010FN00S1, II39010FN50S1, II39010FN52S1, K001001N50S1, K011931S1, K011932004S1, K011932N50S1, K048307N50S1, K048308N50S1, K050701N00S1, K050701N50S1.