Caterpillar Rectangular Sealing Ring, PAI 321311 (OEM 6I3549)
Used In These Kits
This part is included in 2 engine & overhaul kits — find yours below.
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331627Caterpillar 3176 / 3176C Central/Lower Gasket Set In stock -
361608Caterpillar 3176 Liner 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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321342Caterpillar Rectangular Sealing Ring, PAI (OEM 4P9388), Pack of 6 In stock -
370205Cat / Caterpillar 3176 SERIES ROD BEARING In stock -
331561Cat / Caterpillar 3176 SERIES UPPER GASKET KIT In stock -
331219Caterpillar 3176/C10/C12 Oil Pan Gasket, PAI (OEM 1095308), Pack of 1 In stock -
305060Caterpillar C10 / 3176 Piston Ring Set In stock
| Brand | PAI Industries |
| Part Category | Seals & O-Rings |
| Engine Make | Caterpillar |
| Engine Model | 3176 |
| Condition | New |
| Stage / Tier | Standard |
PAI 321311 is a rectangular sealing ring made from Viton. PAI lists Caterpillar 3176 applications. The manufacturer identifies Caterpillar OEM reference 6I3549.
Compare the complete part number and listed application with your required part before ordering.
PAI Part #: 321311
OEM References:
- CATERPILLAR 6I-3549
- CATERPILLAR 6I3549
Applications:
- CATERPILLAR 3176 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 |
|---|
| 6I-3549 |
| 6I3549 |
| CATERPILLAR 6I-3549 |
| CATERPILLAR 6I3549 |
| PAI 321311 |
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.