Cat 3300 Oil Cooler Gasket, PAI 331278 (OEM 5S6051), Pack of 2
Used In These Kits
This part is included in 2 engine & overhaul kits — find yours below.
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
| Brand | PAI Industries |
| Part Category | Lubrication |
| Sub-Type | Oil Cooler Component |
| Engine Make | Caterpillar |
| Engine Model | 3300 |
| Condition | New |
| Stage / Tier | Standard |
Pack of 2.
PAI 331278 is an oil cooler gasket. PAI lists Caterpillar 3300 Series applications. It cross-references Caterpillar OEM 5S6051. PAI lists use with oil cooler 341402.
Compare the complete part number and listed application before ordering.
PAI Part #: 331278
OEM References:
- CATERPILLAR 5S6051
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 |
|---|
| 5S6051 |
| CATERPILLAR 5S6051 |
| PAI 331278 |
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.







