121366 Cummins / Mack ISX / MP7 / MP8 O-Ring
Used In These Kits
This part is included in 8 engine & overhaul kits — find yours below.
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050580Cummins O-Ring Plug In stock -
050585Cummins ISX Drain Plug In stock -
131639LOWER GASKET KIT In stock -
131815UPPER GASKET KIT In stock -
131838Cummins ISX SERIES OIL PAN GASKET KIT In stock -
132076Cummins ISX12 CUMMINS Oil Pan Gasket Kit In stock -
132090Cummins ISX12 CUMMINS LOWER GASKET KIT Confirm lead time -
831140Mack LOWER GASKET SET 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 · Mack |
| Engine Model | ISX · MP7 · MP8 |
| Condition | New |
| Stage / Tier | Standard |
Sold in a pack of 5. Price shown is for 5 pieces.
O-RING
PAI Part #: 121366
OEM References:
- CUMMINS 3678606
- MACK 446GC2159M
- VOLVO 968209
Applications:
- CUMMINS ISX SERIES
- MACK MP7 ENGINES
- MACK MP8 ENGINES
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 |
|---|
| 3678606 |
| 446GC2159M |
| 968209 |
| CUMMINS 3678606 |
| MACK 446GC2159M |
| VOLVO 968209 |
| PAI 121366 |
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.