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Cummins · Models: ISB / QSB
505135 Cummins QSB / ISB Ring Set
Commercial diesel piston. Match the listed part and engine identifiers before ordering.
2-Year WarrantyPAI Industries
$32.29$32.62
Save $0.33
In Stock
PAI Part #505135
JAK'S Part #JAKS-505135
Kit Membership
Used In These Kits
This part is included in 4 engine & overhaul kits — find yours below.
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111508PISTON KIT In stock -
111529PISTON KIT In stock -
111548PISTON KIT In stock -
111618Cummins ISB Piston 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 |
| Engine Make | Cummins |
| Engine Model | ISB · QSB |
| Condition | New |
| Stage / Tier | Standard |
Discovery models are listed below. Confirm the complete application and any ESN/CPL or size restrictions before ordering.
Cummins ISB QSB
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.