121421 Cummins O-Ring
Used In These Kits
This part is included in 2 engine & overhaul kits — find yours below.
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131891UPPER GASKET KIT In stock -
131892UPPER GASKET KIT In stock - No kits match that search.
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 | Cummins |
| Condition | New |
| Stage / Tier | Standard |
Sold in a pack of 2. Price shown is for 2 pieces.
O-RING
PAI Part #: 121421
OEM References:
- CATERPILLAR 6V4315
- CUMMINS 145614
- CUMMINS 3021421
- CUMMINS 3026421
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 |
|---|
| 6V4315 |
| 145614 |
| 3021421 |
| 3026421 |
| CATERPILLAR 6V4315 |
| CUMMINS 145614 |
| CUMMINS 3021421 |
| CUMMINS 3026421 |
| PAI 121421 |
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.