Caterpillar Viton O-Ring, PAI 321255 (OEM 3P1156), Pack of 5
Used In These Kits
This part is included in 3 engine & overhaul kits — find yours below.
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
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331507Caterpillar 3100/C7 Oil Cooler Gasket, PAI (OEM 2337655), Pack of 1 In stock -
331314Cat Tube Pump Gasket, PAI (OEM 7W5340), Pack of 5 In stock -
341405Cat / Caterpillar OIL COOLER In stock -
331506Caterpillar C7 Oil Cooler Gasket, PAI (OEM 2337654), Pack of 1 In stock -
336014Caterpillar 3100/C7 Front Crankshaft Seal, PAI (OEM 1192921), Pack of 1 In stock
| Brand | PAI Industries |
| Part Category | Seals & O-Rings |
| Sub-Type | O-Ring |
| Engine Make | Caterpillar |
| Engine Model | 3100 · C7 |
| Condition | New |
| Stage / Tier | Standard |
PAI 321255 is a viton o-ring for Caterpillar applications. PAI specifies Viton construction. The manufacturer designates product-level OEM 3P1156. PAI cross-references Caterpillar 3P1156. PAI lists these application categories: Caterpillar 3100 Series, Caterpillar C7 Engine. Confirm the complete required part number before ordering.
Pack of 5.
Manufacturer product cross-references
Caterpillar 8T9430
Fuller 15093
Mack 3088-15093
PAI Part #: 321255
OEM References:
- CATERPILLAR 3P1156
- CATERPILLAR 8T9430
- FULLER 15093
- MACK 3088-15093
Applications:
- CATERPILLAR 3100 SERIES
- CATERPILLAR C7 ENGINE
Warranty: 2.0 year(s)
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 |
|---|
| 3P1156 |
| 8T9430 |
| 15093 |
| 3088-15093 |
| CATERPILLAR 3P1156 |
| CATERPILLAR 8T9430 |
| FULLER 15093 |
| MACK 3088-15093 |
| PAI 321255 |
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.