Shopping for: Confirm the part against your engine serial number and application before ordering.
Change engine
Caterpillar · Models: C9
321459 Cat / Caterpillar C9 ENGINES O-RING
Commercial diesel seals / o-rings. Match the listed part and engine identifiers before ordering.
2-Year WarrantyPAI Industries
$5.14
In Stock
PAI Part #321459
JAK'S Part #JAKS-321459
Complete The Rebuild
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
| Brand | PAI Industries |
| Part Category | Gaskets & Seals |
| Sub-Type | O-Ring |
| Engine Make | Caterpillar |
| Engine Model | C9 |
O-RING
Fits:
- CATERPILLAR C9 ENGINES
OEM cross-references:
- CATERPILLAR 1090074
- CATERPILLAR 109-0074
Warranty: 24 months
Discovery models are listed below. Confirm the complete application and any ESN/CPL or size restrictions before ordering.
Caterpillar C9
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.