Caterpillar Part reference
Catalog part 0300167 is listed as ring; (back up) in the Caterpillar catalog. The catalog also associates it with hydraulic system entries for Caterpillar 55 and Caterpillar 816F parent assemblies, shown here only as catalog occurrences, so 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
LockedCheck the signed-in Part Book for available diagrams and the complete catalog breakdown.
| Part number | Description |
|---|---|
| 00***93 | seal-o-ring (id=52.07mm); (52.07-mm id) |
| 0300167 | ring; (back up) (current part) |
| 03***33 | seal-o-ring; (12.42mm id) |
| 03***43 | seal-o-ring |
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 back-up ring is a support ring placed alongside a seal in a hydraulic or mechanical groove to help the seal resist extrusion under pressure and keep its shape. Its exact material, dimensions and supplied contents are not stated in the catalog data provided here.
Use the existing part number 0300167 when requesting this item. Before ordering, compare the catalog occurrences against your machine's serial number, configuration and the assembly you are servicing, since listed associations do not establish universal fitment.
Catalog references
Locked