Caterpillar Piston Pin Retainer, PAI 311086 (OEM 1S9543), Pack of 2
Used In These Kits
This part is included in 7 engine & overhaul kits — find yours below.
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311091Cat / Caterpillar PISTON KIT In stock -
311094Cat / Caterpillar PISTON KIT In stock -
311096Cat / Caterpillar PISTON KIT In stock -
311098Caterpillar Piston Kit, PAI , Pack of 1 In stock -
311100Caterpillar Piston Kit, PAI , Pack of 1 In stock -
311102Caterpillar 3300 / 3306 Piston Kit In stock -
311193Caterpillar 3304/3306 Industrial Piston Kit, PAI , Pack of 1 In stock - No kits match that search.
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
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321227Caterpillar 3306 Liner Seal Kit, PAI (OEM 5P8768), Pack of 1 In stock -
311084Cat 3306 Piston Pin, PAI (OEM 7N9804), Pack of 1 In stock -
351504Caterpillar Taper Rod Pin Bushing, PAI (OEM 8N1849), Pack of 2 In stock -
341310Cat / Caterpillar OIL PUMP In stock -
305050Caterpillar Piston Ring Set, PAI (OEM 9S3068), Pack of 1 In stock
| Brand | PAI Industries |
| Part Category | Pistons & Rings |
| Engine Make | Caterpillar |
| Engine Model | 3300 · 3306 |
| Condition | New |
| Stage / Tier | Standard |
Pack of 2.
PAI 311086 is an internal retaining ring/wire form used as a piston pin retainer; PAI lists 1.872-inch diameter, 0.106-inch width and 0.092-inch thickness. This is the named component; no other piston, rod or cylinder kit components are represented. The manufacturer-designated reference is Caterpillar OEM 1S9543.
Compatible Engines
PAI lists Caterpillar 3300 Series; Caterpillar 3306 Engine applications. Match the original part number and listed application.
PAI lists these manufacturer references: Caterpillar 1S9543; Dana Corporation/Private Brand Sale 223-5502.
Compare the complete part number and required specification before ordering.
PAI Part #: 311086
OEM References:
- CATERPILLAR 1S9543
- DANA CORPORATION/PRIVATE BRAND SALE 223-5502
Applications:
- CATERPILLAR 3300 SERIES
- CATERPILLAR 3306 ENGINE
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 |
|---|
| 1S9543 |
| CATERPILLAR 1S9543 |
| DANA CORPORATION/PRIVATE BRAND SALE 223-5502 |
| PAI 311086 |
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.