321279 Caterpillar O-Ring
Used In These Kits
This part is included in 6 engine & overhaul kits — find yours below.
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331470-151Caterpillar 3126 Intake Gasket Kit In stock -
331470-152Caterpillar C13 Turbo Gasket Kit In stock -
331473-151Caterpillar C13 Intake Gasket Kit In stock -
331499Cat / Caterpillar OIL COOLER GASKET KIT In stock -
331501Cat / Caterpillar C13 ENGINE TURBOCHARGER INSTALLATION GASKET KIT In stock -
331567Cat / Caterpillar TURBOCHARGER INSTALLATION KIT In stock - No kits match that search.
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
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331276Caterpillar 3406E / C15 / C16 Oil Feed Gasket In stock -
331274Cat / Caterpillar TURBOCHARGER OIL DRAIN GASKET (Pack of 6) In stock -
340061Caterpillar 3406E / C15 / C16 Nut In stock -
321265Cat / Caterpillar O-RING (Pack of 10) In stock -
331277Cat / Caterpillar C15 ENGINE TURBO MOUNTING GASKET (Pack of 4) In stock
| Brand | PAI Industries |
| Part Category | Seals & O-Rings |
| Sub-Type | O-Ring |
| Engine Make | Caterpillar |
| Condition | New |
| Stage / Tier | Standard |
Cataloged cross-reference numbers for this product. Confirm fitment before ordering.
| Number |
|---|
| 6V-6353 |
| 6V6353 |
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.