Caterpillar Part reference
This Caterpillar catalog listing covers part number 0041963, described as an O-ring seal with a 55.24mm inside diameter. It appears in the catalog under the steering system and hydraulic system groups for Caterpillar D350E and AP-1000B equipment, as recorded in the catalog occurrences. Confirm the recorded conditions before relying on any association.
Recorded applications
Selected catalog references that list this part. A catalog association does not confirm fitment for every machine or configuration.
Catalog context
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| Part number | Description |
|---|---|
| 0041963 | seal-o-ring; (55.24mm id) (current part) |
| 03***05 | seal-o-ring |
| 2U***90 | filter group-oil |
| 2U***91 | filter element-oil; (standard efficiency) |
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, an O-ring is a circular elastomer seal that sits in a groove and is compressed to block fluid or gas leakage between mating parts. Its inside diameter is the measurement across the open center of the ring, which is the key dimension for matching it to a groove or shaft.
Use part number 0041963 when ordering this O-ring seal. The catalog association with the listed D350E and AP-1000B occurrences does not confirm fitment for every machine configuration, so check the recorded serial number and configuration conditions for those occurrences before ordering.
Catalog references
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