Caterpillar Viton O-Ring, PAI 321234 (OEM 5P8118), Pack of 4
Used In These Kits
This part is included in 2 engine & overhaul kits — find yours below.
-
131634UPPER GASKET KIT In stock -
331586Cat / Caterpillar 3306 ENGINE OIL COOLER GASKET SET In stock - No kits match that search.
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 | 3300 |
| Condition | New |
| Stage / Tier | Standard |
PAI 321234 is a viton o-ring for Caterpillar applications. PAI specifies Viton construction. The manufacturer designates product-level OEM 5P8118. PAI cross-references Caterpillar 5P8118. PAI lists these application categories: Caterpillar 3300 Series. Confirm the complete required part number before ordering.
Pack of 4.
Manufacturer product cross-references
Caterpillar 8U3013
Cummins 3000273
PAI Part #: 321234
OEM References:
- CATERPILLAR 5P8118
- CATERPILLAR 8U3013
- CUMMINS 3000273
Applications:
- CATERPILLAR 3300 SERIES
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 |
|---|
| 5P8118 |
| 8U3013 |
| 3000273 |
| CATERPILLAR 5P8118 |
| CATERPILLAR 8U3013 |
| CUMMINS 3000273 |
| PAI 321234 |
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.







