321387 O-RING (Pack of 10)
Used In These Kits
This part is included in 4 engine & overhaul kits — find yours below.
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
| Brand | PAI Industries |
| Part Category | Gaskets & Seals |
| Sub-Type | O-Ring |
Sold in a pack of 10. Price shown is for 10 pieces.
O-RING
OEM cross-references:
- CATERPILLAR 163-4565
- CATERPILLAR 1634565
- CATERPILLAR 238-5078
- CATERPILLAR 2385078
- CATERPILLAR 5P7812
- FULLER 13834
- MACK 3088-13834
- CUMMINS 3056415
Warranty: 24 months
These catalog references may identify this part or components in an assembly. A listed number alone does not confirm whole-assembly interchange or vehicle fitment. Confirm the required part before ordering.
| Number |
|---|
| CATERPILLAR 163-4565 |
| CATERPILLAR 1634565 |
| CATERPILLAR 238-5078 |
| CATERPILLAR 2385078 |
| CATERPILLAR 5P7812 |
| FULLER 13834 |
| MACK 3088-13834 |
| CUMMINS 3056415 |
| PAI 321387 |
No cross-reference numbers match that search.
Most PAI parts carry a 2-year unlimited-mileage PAI warranty — 3 years on the High Performance tier, 1 year on Excel by PAI. See Warranty & Returns for full coverage terms, or call a specialist to confirm the exact coverage on this part.
PAI published warranty tiers: High Performance — 3-Year · Genuine PAI — 2-Year · Excel — 1-Year, unlimited mileage. The badge beside the price shows this product's recorded term; when no badge is shown, confirm coverage with a specialist.