Shopping for: Confirm the part against your engine serial number and application before ordering.
Change engine
111638 PISTON KIT
Commercial diesel piston. Match the listed part and engine identifiers before ordering.
2-Year WarrantyPAI Industries
$240.85$263.84
Save $22.99
In Stock
PAI Part #111638
JAK'S Part #JAKS-111638
Included Components
What’s In This Kit
Browse 3 included components with current product details and availability.
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111637Cummins Piston In stock -
111087PISTON PIN In stock -
111269Cummins 6C 8.3 Retainer In stock - No included components match that search.
Kit Membership
Used In These Kits
This part is included in 1 engine & overhaul kits — find yours below.
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111639PISTON KIT In stock - No kits match that search.
Complete The Rebuild
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
| Brand | PAI Industries |
| Part Category | Pistons, Rings & Rods |
| Sub-Type | Piston |
PISTON KIT
OEM cross-references:
- 111637 4932720
- 111087 3950549
- 111269 3901996
Warranty: 24 months
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.