Caterpillar Part reference
Catalog part 0304044 is listed as a spring in the Caterpillar catalog. It also appears within a hydraulic system motor group associated with a Caterpillar PR-450C catalog entry. That association is a catalog occurrence and does not confirm fitment for every machine configuration, so the recorded conditions should be checked 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
LockedCheck the signed-in Part Book for available diagrams and the complete catalog breakdown.
| Part number | Description |
|---|---|
| 00***55 | ring-retaining |
| 0304044 | spring (current part) |
| 03***51 | washer |
| 03***88 | piston |
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 spring is a resilient mechanical element that stores and releases energy as it is compressed, extended or twisted, helping to return parts to position or maintain load. In heavy equipment, springs are commonly used in valves, linkages and hydraulic assemblies, where their exact construction and dimensions depend on the specific application.
Use part number 0304044 as the reference when requesting this item. Before ordering, confirm that the catalog occurrence for the PR-450C hydraulic motor group matches your machine and its recorded conditions, since the listed association does not establish compatibility for every configuration.
