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Caterpillar · Models: 3406E / C15
321517 Cat / Caterpillar O-RING (Pack of 2)
Commercial diesel seals / o-rings. Match the listed part and engine identifiers before ordering.
2-Year WarrantyPAI Industries
$3.54
In Stock
PAI Part #321517
JAK'S Part #JAKS-321517
| Brand | PAI Industries |
| Part Category | Gaskets & Seals |
| Sub-Type | O-Ring |
| Engine Make | Caterpillar |
| Engine Model | 3406E · C15 |
Sold in a pack of 2. Price shown is for 2 pieces.
O-RING
Fits:
- CATERPILLAR 3406E SERIES
- CATERPILLAR C15 ENGINE
OEM cross-references:
- CATERPILLAR 6V5066
Warranty: 24 months
Discovery models are listed below. Confirm the complete application and any ESN/CPL or size restrictions before ordering.
Caterpillar 3406E C15
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.