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Home/Cummins B-Series Parts — ISB, 6BT, 4BT & QSB/111521HP Cummins ISB ENGINES HIGH PERFORMANCE PISTON
Cummins · Models: ISB
111521HP Cummins ISB ENGINES HIGH PERFORMANCE PISTON
Commercial diesel pistons. Match the listed part and engine identifiers before ordering.
3-Year HP WarrantyPAI Industries
$158.39$172.27
Save $13.88
In Stock
PAI Part #111521HP
JAK'S Part #JAKS-111521HP
| Brand | PAI Industries |
| Engine Make | Cummins |
| Engine Model | ISB |
HIGH PERFORMANCE PISTON
Fits:
- CUMMINS ISB ENGINES
OEM cross-references:
- CUMMINS 3966678
- CUMMINS 3970192
Discovery models are listed below. Confirm the complete application and any ESN/CPL or size restrictions before ordering.
Cummins ISB
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.