121251 Cat / Caterpillar O-RING (Pack of 10)
Used In These Kits
This part is included in 13 engine & overhaul kits — find yours below.
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131263Cummins LOWER GASKET SET In stock -
131539LOWER GASKET KIT In stock -
131684Cummins QSC ENGINES UPPER GASKET SET In stock - 131685LOWER GASKET KIT View ›
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131726LOWER GASKET KIT In stock -
131799LOWER GASKET KIT In stock -
131899LOWER GASKET KIT In stock -
132039Cummins N14 ENGINES FUEL PUMP GASKET KIT In stock -
331144Caterpillar Overhaul Gasket Kit In stock -
331470-156Caterpillar C13 Cover Gasket Kit In stock -
331473-156Caterpillar C13 Valve Cover Gasket Kit In stock -
331503Cat / Caterpillar UPPER GASKET KIT In stock - 331504UPPER GASKET KIT View ›
- No kits match that search.
| Brand | PAI Industries |
| Part Category | Gaskets & Seals |
| Sub-Type | O-Ring |
| Engine Make | Caterpillar |
| Engine Model | C7 |
Sold in a pack of 10. Price shown is for 10 pieces.
O-RING
Fits:
- CATERPILLAR 3100 SERIES
- CATERPILLAR C7 ENGINE
OEM cross-references:
- CUMMINS 3034412
- MACK 6635-71150912
- CATERPILLAR 7J0204
Warranty: 24 months
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.