Caterpillar 3406B Piston Kit, PAI 311271, Pack of 1
What’s In This Kit
Browse 3 included components with current product details and availability.
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311270Caterpillar 3406B Piston In stock -
311005Cat 3406 Piston Pin, PAI (OEM 8N1608), Pack of 1 In stock -
311006Cat Piston Pin Retainer, PAI (OEM 7E5665), Pack of 2 In stock - No included components match that search.
Used In These Kits
This part is included in 1 engine & overhaul kits — find yours below.
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301063Cat Caterpillar 3406B Series Cylinder Kit 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 | Pistons & Rings |
| Sub-Type | Piston |
| Engine Make | Caterpillar |
| Engine Model | 3406B |
| Condition | New |
| Stage / Tier | Standard |
Pack of 1.
PAI 311271 is a piston kit. Manufacturer application: Caterpillar 3406B. Manufacturer bore specification: 5.40 inches / 137.16 mm. Manufacturer marks Oversized: No.
Manufacturer application table: CATERPILLAR 3406B SERIES.
Manufacturer-listed top-level kit components: 1 x PAI 311270 piston (component OEM reference 7E8885); 1 x PAI 311005 piston pin (component OEM reference 8N1608); 2 x PAI 311006 piston pin retainer (component OEM reference 7E5665). Component references identify the listed components, not the complete kit.
Compare the complete kit number and listed specifications with the required part before ordering.
PAI Part #: 311271
OEM References:
- Part Number OEM Number
- 311270 7E8885
- 311005 8N1608
- 311006 7E5665
Applications:
- CATERPILLAR 3406B SERIES
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 |
|---|
| 311270 7E8885 |
| 311005 8N1608 |
| 311006 7E5665 |
| PAI 311271 |
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.








