Caterpillar C15/C16 Piston Kit, PAI 311109, Pack of 1
What’s In This Kit
Browse 4 included components with current product details and availability.
-
311108Caterpillar Piston Crown, PAI (OEM 2212305), Pack of 1 In stock -
311155Caterpillar Piston Skirt, PAI (OEM 1326663), Pack of 1 In stock -
311004Cat 3406 Piston Pin, PAI (OEM 1687246), Pack of 1 In stock -
GRI-2703Internal Retaining Ring, PAI (OEM 97AX126), Pack of 12 In stock - No included components match that search.
Used In These Kits
This part is included in 1 engine & overhaul kits — find yours below.
-
301069Cat / Caterpillar C15 ENGINE CYLINDER KIT In stock - No kits match that search.
| Brand | PAI Industries |
| Part Category | Pistons & Rings |
| Sub-Type | Piston |
| Engine Make | Caterpillar |
| Engine Model | 3406E · C15 · C16 · C18 |
| Condition | New |
| Stage / Tier | Standard |
Pack of 1.
PAI 311109 is a piston kit. Manufacturer application: Caterpillar C15/C16. Manufacturer bore specification: 5.40 inches / 137.16 mm. Manufacturer marks Oversized: No.
Manufacturer application table: CATERPILLAR 3406E SERIES; CATERPILLAR C15 ENGINE; CATERPILLAR C16 ENGINES; CATERPILLAR C18 ENGINE.
Manufacturer-listed top-level kit components: 1 x PAI 311108 piston crown (component OEM reference 2212305); 1 x PAI 311155 piston skirt (component OEM reference 1326663); 1 x PAI 311004 piston pin (component OEM reference 1687246); 2 x PAI GRI-2703 internal retainer ring (component OEM reference 97AX126). 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 #: 311109
OEM References:
- Part Number OEM Number
- 311108 2212305
- 311155 1326663
- 311004 1687246
- GRI-2703 97AX126
Applications:
- CATERPILLAR 3406E SERIES
- CATERPILLAR C15 ENGINE
- CATERPILLAR C16 ENGINES
- CATERPILLAR C18 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 |
|---|
| 311108 2212305 |
| 311155 1326663 |
| 311004 1687246 |
| GRI-2703 97AX126 |
| PAI 311109 |
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.





