Caterpillar Part reference
This page covers Caterpillar part number 2422249, listed in the catalog as a breather for a hydraulic cylinder. The catalog also associates this number with Caterpillar AP-600D implement assemblies, including housing groups for the eccentric weight. Confirm the recorded conditions before ordering.
Recorded applications
Selected catalog references that list this part. A catalog association does not confirm fitment for every machine or configuration.
Catalog context
Model photoCheck the signed-in Part Book for available diagrams and the complete catalog breakdown.
| Part number | Description |
|---|---|
| 09***41 | ring-retaining |
| 2422249 | breather; (hydraulic cylinder) (current part) |
| 24***06 | shaft as |
| 24***12 | seal-shaft |
Selected entries from this catalog unit. Other part numbers are masked. Confirm the full breakdown and your machine configuration before ordering.
View model pageGeneral guidance
In general, a hydraulic cylinder breather is a vent fitting that lets air move in and out of a cylinder as its internal volume changes, while helping limit dirt and moisture entry. Keeping these vents clear helps the cylinder move smoothly and reduces contamination of the hydraulic fluid.
Use part number 2422249 as the reference for this item. The catalog associations listed for AP-600D housing groups are catalog occurrences, not confirmation that this breather fits every machine configuration. Check the serial number range, parent assembly details and hydraulic cylinder requirements against your equipment before ordering.
Catalog references
Model photo