Caterpillar Piston Kit, PAI 311100, Pack of 1
What’s In This Kit
Browse 3 included components with current product details and availability.
Used In These Kits
This part is included in 1 engine & overhaul kits — find yours below.
-
301015Caterpillar 3300 / 3306 Cylinder Kit In stock - No kits match that search.
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
-
305030Caterpillar Piston Ring Set, PAI (OEM 2W1709), Pack of 1 In stock -
331205Cat / Caterpillar UPPER GASKET KIT In stock -
391910Caterpillar 3100 Exhaust Valve Insert, PAI (OEM 1W2713), Pack of 6 In stock -
391990Caterpillar 3100 / C7 Valve Guide In stock -
392026Cat / Caterpillar 3300 SERIES ROTOCOIL ASSEMBLY (Pack of 6) In stock
| Brand | PAI Industries |
| Part Category | Pistons, Rings & Rods |
| Sub-Type | Piston |
| Engine Make | Caterpillar |
| Engine Model | 3306 |
Pack of 1.
PAI 311100 is a piston kit. Pack of 1 supplies one piston kit. PAI specifies a 17.5:1 compression ratio.
Compatible Engines
PAI lists Caterpillar 3300 Series; Caterpillar 3306 Engine. Confirm the complete required part number and application before ordering.
Manufacturer product cross-references
Dana Corporation/Private Brand Sale 224-3251
PAI listed components
Top-level included reference: PAI 311099, Piston: quantity 1. Component OEM reference: 9N5403.
Top-level included reference: PAI 311085, Piston Pin: quantity 1. Component OEM reference: 7N9805.
Top-level included reference: PAI 311086, Piston Pin Retainer: quantity 2. Component OEM reference: 1S9543.
Nested rows describe parts within their named sub-kit and do not add extra assemblies. Component references are not whole-kit OEM numbers.
Compare the complete part number and required specification before ordering.
Fits:
- CATERPILLAR 3300 SERIES
- CATERPILLAR 3306 ENGINE
OEM cross-references:
- 311099 9N5403
- 311085 7N9805
- 311086 1S9543
- DANA CORPORATION/PRIVATE BRAND SALE 224-3251
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 |
|---|
| 311099 9N5403 |
| 311085 7N9805 |
| 311086 1S9543 |
| DANA CORPORATION/PRIVATE BRAND SALE 224-3251 |
| PAI 311100 |
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.









