Caterpillar O-Ring, PAI 321210 (OEM 5S1188), Pack of 6
Used In These Kits
This part is included in 2 engine & overhaul kits — find yours below.
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331228Caterpillar 3400 Upper Gasket Kit In stock -
331229Cat / Caterpillar 3400 SERIES UPPER 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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321211Caterpillar Silicone Air Intake O-Ring, PAI (OEM 4L8337), Pack of 6 In stock -
331212PAI Turbocharger Gasket for Caterpillar — Pack of 5 In stock -
321233Caterpillar Silicone O-Ring, PAI (OEM 5H7704), Pack of 4 In stock -
331213Cat / Caterpillar TURBOCHARGER OIL PRESSURE GASKET (Pack of 5) In stock -
331214Cat Turbo Oil Drain Gasket, PAI (OEM 126-2702), Pack of 5 In stock
| Brand | PAI Industries |
| Part Category | Seals & O-Rings |
| Sub-Type | O-Ring |
| Engine Make | Caterpillar |
| Engine Model | 3400 |
| Condition | New |
| Stage / Tier | Standard |
Sold in a pack of 6.
PAI 321210 is an o-ring made from Silicone. PAI lists Caterpillar 3400 applications. The manufacturer identifies Caterpillar OEM reference 5S1188.
Compare the complete part number and listed application with your required part before ordering.
PAI Part #: 321210
OEM References:
- CATERPILLAR 5S1188
Applications:
- 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 |
|---|
| 5S1188 |
| CATERPILLAR 5S1188 |
| PAI 321210 |
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.