Caterpillar Rectangular Sealing Ring, PAI 321344 (OEM 1504105), Pack of 6
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.
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| Brand | PAI Industries |
| Part Category | Seals & O-Rings |
| Engine Make | Caterpillar |
| Engine Model | 3100 · C7 |
| Condition | New |
| Stage / Tier | Standard |
Pack of 6.
PAI 321344 is a rectangular sealing ring. PAI specifies Viton (90). Listed dimensions are 1.365-inch inside diameter, 0.105-inch cross section and 0.07-inch thickness. The manufacturer designates product-level OEM 1504105.
Compatible Engines
PAI lists Caterpillar 3100 Series; Caterpillar C7 Engine. Match the complete required part number and listed application before ordering.
Manufacturer product cross-references
Caterpillar 144-3483
Caterpillar 1443483
Caterpillar 150-4105
Caterpillar 1504105
Compare the complete part number, material and required seal specification before ordering.
PAI Part #: 321344
OEM References:
- CATERPILLAR 144-3483
- CATERPILLAR 1443483
- CATERPILLAR 150-4105
- CATERPILLAR 1504105
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 |
|---|
| 144-3483 |
| 1443483 |
| 150-4105 |
| 1504105 |
| CATERPILLAR 144-3483 |
| CATERPILLAR 1443483 |
| CATERPILLAR 150-4105 |
| CATERPILLAR 1504105 |
| PAI 321344 |
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.







