Caterpillar O-Ring, PAI 321424 (OEM 1291653), Pack of 4
Used In These Kits
This part is included in 4 engine & overhaul kits — find yours below.
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 |
| Condition | New |
| Stage / Tier | Standard |
Pack of 4.
PAI 321424 is an o-ring. PAI lists Viton material. The listed durometer is 75. Listed cross section is 0.139 inch. Listed inside diameter is 1.734 inches. The manufacturer designates product-level OEM 1291653.
Manufacturer product cross-references
Caterpillar 129-1653
Caterpillar 1291653
Caterpillar 147-8290
Caterpillar 1478290
Caterpillar 8M4443
Compare the complete part number, material and required seal specification before ordering.
PAI Part #: 321424
OEM References:
- CATERPILLAR 129-1653
- CATERPILLAR 1291653
- CATERPILLAR 147-8290
- CATERPILLAR 1478290
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 |
|---|
| 129-1653 |
| 1291653 |
| 147-8290 |
| 1478290 |
| CATERPILLAR 129-1653 |
| CATERPILLAR 1291653 |
| CATERPILLAR 147-8290 |
| CATERPILLAR 1478290 |
| PAI 321424 |
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.