Caterpillar C18 Intermediate Piston Ring, PAI 305088 (OEM Ref 1871503)
Used In These Kits
This part is included in 1 engine & overhaul kits — find yours below.
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305089Caterpillar C18 Piston Ring Set Confirm lead time - No kits match that search.
| Engine family | Caterpillar C18 |
| Brand | PAI Industries |
| Part Category | Pistons, Rings & Rods |
| Sub-Type | Piston Ring Set |
| Engine Make | Caterpillar |
| Engine Model | C18 |
PAI 305088 is an intermediate piston ring for the listed Caterpillar C18 application. The manufacturer specifies steel construction, a 145.000 mm bore and middle wiper-ring position.
OEM reference: Caterpillar 1871503. Compare the complete part number and listed applications with your required part before ordering.
Fits:
- CATERPILLAR C18 ENGINE
OEM cross-references:
- CATERPILLAR 187-1503
- CATERPILLAR 1871503
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 187-1503 |
| CATERPILLAR 1871503 |
| PAI 305088 |
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.

