Caterpillar O-Ring, PAI 321404 (OEM 227-5904)
Used In These Kits
This part is included in 3 engine & overhaul kits — find yours below.
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
-
331313Caterpillar 3100/C7 Block Side Cover Gasket, PAI (OEM 4Y9652), Pack of 3 In stock -
331311Caterpillar 3116 Compressor Mounting Gasket, PAI (OEM 1359819), Pack of 5 In stock -
321434Caterpillar O-Ring, PAI (OEM 1853241), Pack of 5 In stock -
3312803 Meter Valve Cover Gasket Roll, PAI (OEM 5P5678-3), Pack of 1 In stock -
121312Viton O-Ring, PAI (OEM 3347937), Pack of 6 In stock
| Brand | PAI Industries |
| Part Category | Seals & O-Rings |
| Sub-Type | O-Ring |
| Engine Make | Caterpillar |
| Engine Model | 3100 · C7 |
| Condition | New |
| Stage / Tier | Standard |
PAI 321404 is an o-ring. PAI lists Caterpillar 3100 Series and C7 applications. The manufacturer identifies Caterpillar OEM reference 227-5904.
Compare the complete part number and listed application with your required part before ordering.
PAI Part #: 321404
OEM References:
- CATERPILLAR 227-5904
- CATERPILLAR 2275904
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 |
|---|
| 227-5904 |
| 2275904 |
| CATERPILLAR 227-5904 |
| CATERPILLAR 2275904 |
| PAI 321404 |
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.