Caterpillar Piston Crown, PAI 311129 (OEM 1684540), Pack of 1
Used In These Kits
This part is included in 1 engine & overhaul kits — find yours below.
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311134Caterpillar 3400 / 3406C Piston Kit Confirm lead time - No kits match that search.
| Brand | PAI Industries |
| Part Category | Pistons, Rings & Rods |
| Sub-Type | Piston Crown / Skirt |
| Engine Make | Caterpillar |
| Engine Model | 3406C |
Pack of 1.
PAI 311129 is a piston crown. The manufacturer lists a 5.40-inch bore. PAI describes Caterpillar 3406C applications. This listing identifies the named component.
Compatible Engines
PAI lists Caterpillar 3400 Series; Caterpillar 3406C Engines applications. Match the required part number and listed application.
Manufacturer references: Caterpillar 0R9847; Caterpillar 168-4540; Caterpillar 1684540.
Compare the full part number and required specification before ordering.
Fits:
- CATERPILLAR 3400 SERIES
- CATERPILLAR 3406C ENGINES
OEM cross-references:
- CATERPILLAR 0R9847
- CATERPILLAR 168-4540
- CATERPILLAR 1684540
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 0R9847 |
| CATERPILLAR 168-4540 |
| CATERPILLAR 1684540 |
| PAI 311129 |
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.