303.02.0016.02 Multi-circuit Protection Valve Equivalent Kit
303.02.0016.02
Summary
This multi-circuit protection valve repair kit is designed for renewing the internal components of pneumatic brake valves. It is compatible with Iveco and DAF heavy commercial vehicles to ensure reliable circuit separation and air distribution within the braking system. Equivalent to OE Knorr-Bremse AE4502S2.
| EAN Code | 8683457018891 |
|---|
Ready to Order
Compatible OEM Codes
-
KNORR-BREMSE
- K050701N50 S2
- K050701N00 S2
- K048308N50 S2
- K048307N50 S2
- K011932N50 S2
- K011932004 S2
- K011931 S2
- K001001N50 S2
- II39010FN52 S2
- II39010FN50 S2
- II39010FN00 S2
- II39010F004 S2
- II39010F S2
- II38749FN52 S2
- II38749FN50 S2
- II38749FN00 S2
- II38749FM2 S2
- II38749F0041 S2
- II38749F004 S2
- II38749F S2
- II38745F S2
- II37679 S2
- II37464N52 S2
- II37464N50 S2
- AE 4565 S2
- AE 4563 S2
- AE 4562 S2
- AE 4561 S2
- AE 4560 S2
- AE 4546 S2
- AE 4544 S2
- AE 4534 S2
- AE 4529 S2
- AE 4528 S2
- AE 4528 S S2
- AE 4527 S2
- AE 4526 S2
- AE 4516 S2
- AE 4516 S S2
- AE 4503 S2
- AE 4502 S2
Description
What does a repair kit do?
This repair kit provides a complete set of replacement components designed to overhaul the multi-circuit protection valve within a heavy commercial vehicle's pneumatic brake system. By replacing internal elements, this kit helps maintain the essential function of managing multiple air lines from a single housing, ensuring that air is correctly distributed between the service brake, parking brake, and auxiliary circuits.Vehicle compatibility and fitment
The kit is compatible with Iveco and DAF vehicles. These components are engineered to restore internal sealing and circuit separation, which is critical for maintaining safety even if a leak develops in one of the individual circuits. Using a high-strength component set allows for efficient maintenance of the pneumatic system.Installation and maintenance guidance
During installation, technicians should ensure that all old seals and O-rings are completely removed to prevent contamination. It is recommended to inspect the valve housing for any debris or scoring before installing the new diaphragms and spring sets. Proper assembly ensures the valve continues to prioritize air supply correctly across all critical braking functions.System reliability and troubleshooting
Regular inspection of the multi-circuit protection valve can prevent significant pressure loss in the braking system. Replacing worn internal parts helps maintain the integrity of the pneumatic circuits throughout the vehicle's service life. Consult your authorized distributor for more information.OE cross-reference
303.02.0016.02 (Multi-circuit Protection Valve Repair Kit) is the equivalent of the Knorr-Bremse OE numbers. This part directly replaces Knorr-Bremse OE numbers AE4502S2, AE4503S2, AE4516SS2, AE4516S2, AE4526S2, AE4527S2, AE4528SS2, AE4528S2, AE4529S2, AE4534S2, AE4544S2, AE4546S2, AE4560S2, AE4561S2, AE4562S2, AE4563S2, AE4565S2, II37464N50S2, II37464N52S2, II37679S2, II38745FS2, II38749FS2, II38749F004S2, II38749F0041S2, II38749FM2S2, II38749FN00S2, II38749FN50S2, II38749FN52S2, II39010FS2, II39010F004S2, II39010FN00S2, II39010FN50S2, II39010FN52S2, K001001N50S2, K011931S2, K011932004S2, K011932N50S2, K048307N50S2, K048308N50S2, K050701N00S2, K050701N50S2.Other OEMs
KNORR-BREMSE
- AE4565S2
- AE4563S2
- AE4562S2
- AE4561S2
- AE4560S2
- AE4546S2
- AE4544S2
- AE4534S2
- AE4529S2
- AE4528SS2
- AE4528S2
- AE4527S2
- AE4526S2
- AE4516SS2
- AE4516S2
- AE4503S2
- AE4502S2
- K050701N50 S2
- K050701N00 S2
- K048308N50 S2
- K048307N50 S2
- K011932N50 S2
- K011932004 S2
- K011931 S2
- K001001N50 S2
- II39010FN52 S2
- II39010FN50 S2
- II39010FN00 S2
- II39010F004 S2
- II39010F S2
- II38749FN52 S2
- II38749FN50 S2
- II38749FN00 S2
- II38749FM2 S2
- II38749F0041 S2
- II38749F004 S2
- II38749F S2
- II38745F S2
- II37679 S2
- II37464N52 S2
- II37464N50 S2
- AE 4565 S2
- AE 4563 S2
- AE 4562 S2
- AE 4561 S2
- AE 4560 S2
- AE 4546 S2
- AE 4544 S2
- AE 4534 S2
- AE 4529 S2
- AE 4528 S2
- AE 4528 S S2
- AE 4527 S2
- AE 4526 S2
- AE 4516 S2
- AE 4516 S S2
- AE 4503 S2
- AE 4502 S2
Related Products
Used In
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| DAF | |||
| IVECO | |||
| KNORR-BREMSE |
FAQ
What is the purpose of this repair kit?
The kit restores the internal sealing and circuit separation of a multi-circuit protection valve, ensuring independent air supply to different braking circuits.
Which vehicles is this kit compatible with?
This specific repair kit is designed for use in Iveco and DAF heavy commercial vehicles.
Can I replace just one component from the kit?
It is recommended to replace all internal elements like diaphragms, O-rings, and springs as a complete set to ensure full system reliability.
How can I tell if my protection valve needs repair?
Signs may include air leaks in specific circuits or a failure to maintain pressure in auxiliary lines despite compressor operation.
What are the OE reference numbers of this part?
303.02.0016.02 directly replaces Knorr-Bremse OE numbers AE4502S2, AE4503S2, AE4516SS2, AE4516S2, AE4526S2, AE4527S2, AE4528SS2, AE4528S2, AE4529S2, AE4534S2, AE4544S2, AE4546S2, AE4560S2, AE4561S2, AE4562S2, AE4563S2, AE4565S2, II37464N50S2, II37464N52S2, II37679S2, II38745FS2, II38749FS2, II38749F004S2, II38749F0041S2, II38749FM2S2, II38749FN00S2, II38749FN50S2, II38749FN52S2, II39010FS2, II39010F004S2, II39010FN00S2, II39010FN50S2, II39010FN52S2, K001001N50S2, K011931S2, K011932004S2, K011932N50S2, K048307N50S2, K048308N50S2, K050701N00S2, K050701N50S2.