Caterpillar Dowel Pin, PAI 345028 (OEM 4N0684), Pack of 5
Used In These Kits
This part is included in 4 engine & overhaul kits — find yours below.
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
| Brand | PAI Industries |
| Part Category | Crankshaft |
| Engine Make | Caterpillar |
| Engine Model | 3406 · 3406E · C15 · C16 · C18 |
| Condition | New |
| Stage / Tier | Standard |
PAI 345028 is a dowel pin for Caterpillar applications. PAI specifies a 0.375-inch diameter and 0.75-inch length. The manufacturer designates product-level OEM 4N0684. PAI cross-references Caterpillar 4N0684. PAI lists these application categories: Caterpillar 3406E Series, Caterpillar C15 Engine, Caterpillar C16 Engines, Caterpillar C18 Engine, Caterpillar 3406 Engines. Confirm the complete required part number before ordering.
Pack of 5.
PAI Part #: 345028
OEM References:
- CATERPILLAR 4N0684
Applications:
- CATERPILLAR 3406E SERIES
- CATERPILLAR C15 ENGINE
- CATERPILLAR C16 ENGINES
- CATERPILLAR C18 ENGINE
- CATERPILLAR 3406 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 |
|---|
| 4N0684 |
| CATERPILLAR 4N0684 |
| PAI 345028 |
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.








