17746 Views Updated 9 November 2026

II38617F S3 Knorr-Bremse Compatible Air Processing Unit Repair Kit

301.03.0070.05

Summary

This air processing unit repair kit is designed for the in-place overhaul of heavy commercial vehicle air treatment units. It provides high-strength components to maintain the regulation and distribution of compressed air within the brake system. Compatible with Knorr-Bremse systems. Equivalent to OE Knorr-Bremse II38617FS3.

Product identifiers
EAN Code	8683457012530

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Compatible OEM Codes

KNORR-BREMSE
- RPLA2100 S3
- LA 8646 S3
- LA 8645 S3
- LA 8644 S3
- LA 8643 S3
- LA 8642 S3
- LA 8641 S3
- LA 8640 S3
- LA 8639 S3
- LA 8638 S3
- LA 8637 S3
- LA 8636 S3
- LA 8635 S3
- LA 8627 S3
- LA 8625 S3
- LA 8617 S3
- LA 8610 S3
- LA 8609 S3
- LA 8608 S3
- LA 8607 S3
- LA 8606 S3
- LA 8605 S3
- LA 8600 S3
- K116880N50 S3
- K116879N52 S3
- K116879N50 S3
- K116878N52 S3
- K116878N50 S3
- K116877N52 S3
- K116877N50 S3
- K116876N52 S3
- K116876N50 S3
- K116875N52 S3
- K116875N50 S3
- K116874N52 S3
- K116874N50 S3
- K116873N52 S3
- K116873N50 S3
- K116872N52 S3
- K116872N50 S3
- K116871N52 S3
- K116871N50 S3
- K116870N52 S3
- K116870N50 S3
- K116869N52 S3
- K116869N50 S3
- K044300N50 S3
- K044300N03 S3
- K044300 S3
- K043684N50 S3
- K040608N50 S3
- K040607N50 S3
- K040607N03 S3
- K040607 S3
- K040606N50 S3
- K040606N03 S3
- K040605N50 S3
- K040605N03 S3
- K040604N50 S3
- K040604N03 S3
- K040604 S3
- K039120N50 S3
- K039120N03 S3
- II38617FN00 S3
- II38617FM5 S3
- II38617F S3
- II38610FM5 S3
- II38610F S3
- 484460186000 S3
- 286370 S3
- 274746 S3
- 1100586000R S3
- 1100586000 S3

Description

What does an air processing unit repair kit do?

This repair kit serves as a specialized service set for the in-place overhaul of units that dry, regulate, and distribute compressed air within a heavy commercial vehicle's air brake system. By utilizing high-strength components, this kit allows for the renewal of heavily loaded components without the necessity of a full unit replacement.

System compatibility and application

These kits are designed to restore optimal performance in pneumatic systems, ensuring that pressure regulation and air filtration remain within required tolerances. This is particularly useful when addressing symptoms such as pressure drift or moisture accumulation in the pneumatic lines. The kit is compatible with Knorr-Bremse systems.

Installation and maintenance guidance

For successful installation, technicians should ensure surface cleanliness and apply the correct lubricant during assembly. It is essential to follow the specific tightening torque requirements provided by the vehicle manufacturer to ensure long-term durability. Always verify compatibility with the existing air treatment unit before proceeding with the overhaul.

Maintenance and troubleshooting

Regular maintenance of the air processing unit helps prevent systemic failures in the braking circuit. Using a comprehensive kit ensures that all critical sealing elements and moving parts are renewed simultaneously, maintaining the integrity of the compressed air supply.

OE cross-reference

301.03.0070.05 (Air Processing Unit Repair Kit) is the equivalent of the Knorr-Bremse OE number. This part directly replaces Knorr-Bremse OE number II38617FS3.