Caterpillar O-Ring, PAI 321298 (OEM 0617540), Pack of 5
Used In These Kits
This part is included in 11 engine & overhaul kits — find yours below.
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181950Cummins 3.3 ENGINE WATER PUMP KIT In stock -
321380Caterpillar C10/C12 Oil Cooler Installation O-Ring Kit, PAI (OEM 1433009), Pack of 1 In stock -
321407Caterpillar C10/C12 Oil Cooler Installation O-Ring Kit, PAI (OEM 1933322), Pack of 1 In stock -
321411Caterpillar C15 ACERT Oil Cooler Gasket Kit, PAI (OEM 3483682), Pack of 1 In stock -
321485Caterpillar 3176 Oil Cooler Gasket Kit, PAI (OEM 7X7974), Pack of 1 In stock -
331391Cat / Caterpillar OIL COOLER GASKET KIT In stock -
331392Cat / Caterpillar OIL COOLER GASKET KIT In stock -
331395Cat / Caterpillar OIL COOLER GASKET KIT In stock -
331598Cat / Caterpillar 3176C ENGINES OIL COOLER GASKET KIT In stock -
331623Cat / Caterpillar C10 ENGINE OIL COOLER O-RING KIT In stock -
331629Cat / Caterpillar 3176 SERIES OIL COOLER GASKET 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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121308HNBR O-Ring, PAI (OEM 3678756), Pack of 5 In stock -
321294Caterpillar O-Ring, PAI (OEM 3P0650), Pack of 10 In stock -
321278Caterpillar HNBR O-Ring, PAI (OEM 1090077), Pack of 5 In stock -
121292EPDM O-Ring, PAI (OEM 3102500), Pack of 5 In stock -
321405Caterpillar O-Ring, PAI (OEM 2N5243), Pack of 5 In stock
| Brand | PAI Industries |
| Part Category | Seals & O-Rings |
| Sub-Type | O-Ring |
| Engine Make | Caterpillar |
| Engine Model | 3406E · C15 · C16 · C18 · 3400 |
| Condition | New |
| Stage / Tier | Standard |
Pack of 5.
PAI 321298 is an o-ring. PAI lists Viton material. The listed durometer is 75. Listed cross section is 0.139 inch. Listed inside diameter is 1.484 inches. The manufacturer designates product-level OEM 0617540.
Compatible Engines
PAI lists Caterpillar 3406E Series; Caterpillar C15 Engine; Caterpillar C16 Engines; Caterpillar C18 Engine; Caterpillar 3400 Series. Match the complete required part number and listed application before ordering.
Manufacturer product cross-references
Caterpillar 061-7540
Caterpillar 0617540
Caterpillar 61-7540
Caterpillar 617540
Caterpillar 6V6754
Cummins 4982115
Cummins C0700003040
Mack 6120-C0700003040
Compare the complete part number, material and required seal specification before ordering.
PAI Part #: 321298
OEM References:
- CATERPILLAR 061-7540
- CATERPILLAR 0617540
- CATERPILLAR 61-7540
- CATERPILLAR 617540
- CATERPILLAR 6V6754
- CUMMINS 4982115
- CUMMINS C0700003040
- MACK 6120-C0700003040
Applications:
- CATERPILLAR 3406E SERIES
- CATERPILLAR C15 ENGINE
- CATERPILLAR C16 ENGINES
- CATERPILLAR C18 ENGINE
- CATERPILLAR 3400 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 |
|---|
| 061-7540 |
| 0617540 |
| 61-7540 |
| 617540 |
| 6V6754 |
| 4982115 |
| C0700003040 |
| 6120-C0700003040 |
| CATERPILLAR 061-7540 |
| CATERPILLAR 0617540 |
| CATERPILLAR 61-7540 |
| CATERPILLAR 617540 |
| CATERPILLAR 6V6754 |
| CUMMINS 4982115 |
| CUMMINS C0700003040 |
| MACK 6120-C0700003040 |
| PAI 321298 |
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.
















