Caterpillar 3406 Buna N O-Ring, PAI 321505 (OEM 4J8997), Pack of 1
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
-
380162Caterpillar 3406B / 3406C Fuel Supply Pump Ships from supplier · Lead time confirmed when you order -
380159Caterpillar 3304 / 3306 Fuel Pump Ships from supplier · Lead time confirmed when you order -
380150Caterpillar 3300 Primer Pump Ships from supplier · Lead time confirmed when you order -
331269Caterpillar 3400 Primer Pump Gasket, PAI (OEM 1P0436), Pack of 5 Ships from supplier · Lead time confirmed when you order -
181807Cummins 855 ENGINES WATER PUMP Ships from supplier · Lead time confirmed when you order
| Engine family | Caterpillar 3406 (A/B/C) |
| Brand | PAI Industries |
| Part Category | Gaskets & Seals |
| Sub-Type | O-Ring |
| Engine Make | Caterpillar |
| Engine Model | 3406 |
PAI Industries 321505 o-ring for Caterpillar 3406. Replaces Caterpillar 4J8997. 24-month warranty.
Fits:
- CATERPILLAR 3406 ENGINES
OEM cross-references:
- CATERPILLAR 4J8997
- CATERPILLAR 8T7298
Warranty: 24 months
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 |
|---|
| CATERPILLAR 4J8997 |
| CATERPILLAR 8T7298 |
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.