121250 Caterpillar 3406E / C15 / C16 O-Ring
Used In These Kits
This part is included in 31 engine & overhaul kits — find yours below.
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131743Cummins UPPER GASKET KIT In stock -
131746Cummins LOWER GASKET KIT In stock -
131811Cummins ISL SERIES LOWER GASKET KIT In stock -
131814Cummins UPPER GASKET KIT In stock -
331144Caterpillar Overhaul Gasket Kit In stock -
331379Cat / Caterpillar FRONT COVER GASKET KIT In stock -
331383Cat / Caterpillar FRONT COVER GASKET KIT In stock -
331422Cat / Caterpillar FRONT GASKET KIT In stock -
331453Cat / Caterpillar REAR GASKET KIT In stock -
331495Cat / Caterpillar FRONT COVER GASKET KIT In stock -
331509Cat / Caterpillar C13 ENGINE O-RING KIT In stock -
331510Caterpillar C13 Rear Gasket Kit In stock - 331511FRONT GASKET KIT View ›
- 331512OIL COOLER GASKET KIT View ›
- 331515FRONT COVER GASKET KIT View ›
- 331519LOWER GASKET SET View ›
- 331546OIL COOLER GASKET KIT View ›
- 331547FRONT GASKET KIT View ›
- 331548FRONT COVER GASKET KIT View ›
- 331554LOWER GASKET SET View ›
- 331557LOWER GASKET SET View ›
- 331562LOWER GASKET SET View ›
- 331565FRONT COVER GASKET KIT View ›
- 331591WATER PUMP GASKET SET View ›
- 331627CENTRAL/LOWER GASKET SET View ›
- 331628WATER PUMP GASKET KIT View ›
- 331634FRONT STRUCTURE GASKET KIT View ›
- 331653CRANKSHAFT SEALAND GASKET KIT View ›
- 331679FRONT COVER GASKET KIT View ›
- 331713FRONT GASKET KIT View ›
- 331751FRONT COVER GASKET KIT View ›
- 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 | Caterpillar |
| Engine Model | 3406E · C15 · C16 · C18 |
| Condition | New |
| Stage / Tier | Standard |
Cataloged cross-reference numbers for this product. Confirm fitment before ordering.
| Number |
|---|
| 061-9455 |
| 0619455 |
| 61-9455 |
| 619455 |
| 3073966 |
| 4333-21490R1 |
| 21490R1 |
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.