Machinery & Truck PartsThe Cummins ISL is a 8.9 L (543 cu in) diesel engine with a inline-6, turbocharged, electronically controlled configuration. Typical output is approximately 330–425 HP (varies by rating/application), depending on rating and application. Its fuel system is electronic high-pressure common rail (cm-series ecm). Common applications include motorhomes/rvs, transit and shuttle buses, refuse/dump/fire vocational trucks, medium-heavy trucks. The engines listed below are actual in-stock units identified by year and stock number. Each used Cummins ISL engine is inspected and tested before shipping, includes warranty coverage, and can ship nationwide with freight quoted to the destination ZIP code. Call (800) 696-5459 with the original vehicle or equipment details to confirm fitment.
Cummins ISL Engine Specifications
| Displacement | 8.9 L (543 cu in) |
| Configuration | Inline-6, turbocharged, electronically controlled |
| Power | ~330–425 HP (varies by rating/application) |
| Fuel System | Electronic high-pressure common rail (CM-series ECM) |
| Common Uses | Motorhomes/RVs, transit and shuttle buses, refuse/dump/fire vocational trucks, medium-heavy trucks |
What Uses the Cummins ISL Engine
Motorhomes/RVs, transit and shuttle buses, refuse/dump/fire vocational trucks, medium-heavy trucks
Cummins ISL Fitment and Model Comparison
The ISL belongs to a specific Cummins engine family and should not be selected only by displacement or visual similarity. Compare the engine serial information, year, rating, electronics or fuel system, flywheel housing, mounts, oil pan, cooling package, and included accessories with the engine being replaced.
What to Check When Buying a Used Cummins ISL
Confirm the engine identification and original application first. Review the listing photos and ask about testing, cold-start behavior where applicable, visible leaks, oil and coolant condition, included electronics, turbocharger or fuel-system components, flywheel housing, mounts, oil pan, and accessories. Warranty coverage is included, but call to review the terms for the specific stock number.
Cummins ISL Engines In Stock
2 in stock. Shop tested used Cummins ISL engines listed by year and stock number.
Cummins ISL Buying FAQ
How do I confirm a Cummins ISL engine fits?
Have the vehicle or equipment year, make, model, application, engine serial information, and listing stock number ready. Call (800) 696-5459 so the parts team can compare the exact engine and included components.
Is warranty coverage included with a used Cummins ISL engine?
Yes. The engine is inspected and tested before shipping and includes warranty coverage. Call to review the terms for the specific stock number before ordering.
Can a Cummins ISL engine ship nationwide?
Yes. Nationwide freight is available and quoted to the destination ZIP code. Call with the stock number and delivery location for a freight quote.
More Used Cummins Engines
All used Cummins engines · Used Cummins ISB 5.9 engines · Used Cummins ISB 6.7 engines · Used Cummins ISC 8.3 engines · Used Cummins 6BT 5.9 engines · All Truck Engines · Transmissions · Truck Parts · Contact