Caterpillar C15 Monosteel Piston, PAI 311194 (OEM Ref 3466615)
Used In These Kits
This part is included in 1 engine & overhaul kits — find yours below.
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311195Cat / Caterpillar C15 ENGINE PISTON KIT (C15) Ships from supplier · Lead time confirmed when you order - No kits match that search.
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
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331155Cat / Caterpillar C15 ENGINE OIL PAN GASKET KIT Ships from supplier · Lead time confirmed when you order -
305045Cat / Caterpillar C15 ENGINE PISTON RING SET Ships from supplier · Lead time confirmed when you order -
331712Cat / Caterpillar GASKET KIT Ships from supplier · Lead time confirmed when you order -
331165Cat / Caterpillar C15 ENGINE UPPER GASKET KIT Ships from supplier · Lead time confirmed when you order
| Engine family | Caterpillar C15 |
| Brand | PAI Industries |
| Part Category | Pistons, Rings & Rods |
| Sub-Type | Piston |
| Engine Make | Caterpillar |
| Engine Model | C15 |
PAI 311194 is a monosteel piston for the listed Caterpillar C15 application. The manufacturer specifies a 16:1 compression ratio and a 137.16 mm bore. This listing identifies the piston, separately from PAI piston-kit number 311195.
OEM reference: Caterpillar 3466615. Compare the complete part number and listed application with your required part before ordering.
Fits:
- CATERPILLAR C15 ENGINE
OEM cross-references:
- CATERPILLAR 346-6615
- CATERPILLAR 3466615
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 346-6615 |
| CATERPILLAR 3466615 |
| PAI 311194 |
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.





