321239 Caterpillar / Cummins 3406E / C15 / C16 O-Ring
Used In These Kits
This part is included in 44 engine & overhaul kits — find yours below.
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131482-152Cummins TURBOCHARGER GASKET KIT In stock -
131684Cummins QSC ENGINES UPPER GASKET SET In stock -
131743Cummins UPPER GASKET KIT In stock -
131814Cummins UPPER GASKET KIT In stock -
131815UPPER GASKET KIT In stock -
131816UPPER GASKET KIT In stock -
131864Cummins ISB ENGINES LOWER GASKET KIT In stock -
141440Cummins EGR COOLER INSTALLATION KIT In stock -
321411Caterpillar C15 / C15 Acert Oil Cooler Gasket Kit In stock -
331128Cat / Caterpillar OVERHAUL GASKET KIT In stock -
331144Caterpillar Overhaul Gasket Kit In stock -
331198Cat / Caterpillar UPPER GASKET KIT In stock - 331200UPPER GASKET KIT View ›
- 331220ENGINE OVERHAUL GASKET KIT View ›
- 331321LOWER GASKET KIT View ›
- 331327FUEL PUMP GASKET KIT View ›
- 331328UPPER GASKET KIT View ›
- 331334GASKET KIT View ›
- 331378OIL COOLER GASKET KIT View ›
- 331389OIL COOLER GASKET KIT View ›
- 331391OIL COOLER GASKET KIT View ›
- 331413OIL COOLER GASKET KIT View ›
- 331449ENGINE OVERHAUL GASKET KIT View ›
- 331470-151INTAKE GASKET KIT View ›
- 331473-151INTAKE GASKET KIT View ›
- 331497COMPRESSOR GASKET SET View ›
- 331499OIL COOLER GASKET KIT View ›
- 331502TURBOCHARGER INSTALLATION GASKET KIT View ›
- 331503UPPER GASKET KIT View ›
- 331504UPPER GASKET KIT View ›
- 331511FRONT GASKET KIT View ›
- 331515FRONT COVER GASKET KIT View ›
- 331516LOWER GASKET KIT View ›
- 331517COMPRESSOR GASKET KIT View ›
- 331538REAR COVER GASKET KIT View ›
- 331539GASKET KIT View ›
- 331554LOWER GASKET SET View ›
- 331557LOWER GASKET SET View ›
- 331561UPPER GASKET KIT View ›
- 331581UPPER GASKET SET View ›
- 331583TURBOCHARGER INSTALLATION KIT View ›
- 331586OIL COOLER GASKET SET View ›
- 331611SINGLE CYLINDER HEAD GASKET SET View ›
- 331648UPPER GASKET KIT View ›
- No kits match that search.
| Brand | PAI Industries |
| Part Category | Seals & O-Rings |
| Sub-Type | O-Ring |
| Engine Make | Caterpillar · Cummins |
| Engine Model | 3406E · C15 · C16 · C18 · 3400 · 3100 · C7 · 3300 · ISX |
| Condition | New |
| Stage / Tier | Standard |
Cataloged cross-reference numbers for this product. Confirm fitment before ordering.
| Number |
|---|
| 06-3710 |
| 063710 |
| 2U5316 |
| 3J7354 |
| 4J2209 |
| 5E6738 |
| 77-3100 |
| 77-4866 |
| 77-5022 |
| 773100 |
| 774866 |
| 775022 |
| 7X5362 |
| 7X8720 |
| 8T4461 |
| 95-1759 |
| 951759 |
| 98-3894 |
| 983894 |
| 3883963 |
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.