321309 Caterpillar 3400 O-Ring
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
| Brand | PAI Industries |
| Part Category | Seals & O-Rings |
| Sub-Type | O-Ring |
| Engine Make | Caterpillar |
| Engine Model | 3400 |
| Condition | New |
| Stage / Tier | Standard |
Cataloged cross-reference numbers for this product. Confirm fitment before ordering.
| Number |
|---|
| 03-8761 |
| 03-9857 |
| 038761 |
| 039857 |
| 175-7896 |
| 1757896 |
| 185-1608 |
| 1851608 |
| 1G-8458 |
| 1G8458 |
| 1H-6203 |
| 1H-7339 |
| 1H6203 |
| 1H7339 |
| 203-0265 |
| 2030265 |
| 2U-5322 |
| 2U5322 |
| 5H-6497 |
| 5H6497 |
| 7R-7148 |
| 7R7148 |
| 8C-7432 |
| 8C7432 |
| 8T-7251 |
| 8T7251 |
| 9W-4959 |
| 9W4959 |
| 145586 |
No cross-reference numbers match that search.
Discovery models are listed below. Confirm the complete application and any ESN/CPL or size restrictions before ordering.
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.