Machinery & Truck PartsThe Cummins 6CT 8.3 is a 8.3 L (505 cu in) diesel engine with a inline-6, turbocharged, fully mechanical configuration. Typical output is approximately 215–300 HP (varies by rating), depending on rating and application. Its fuel system is mechanical bosch injection. Common applications include medium-heavy trucks, buses, agricultural and industrial equipment, marine. The engines listed below are actual in-stock units identified by year and stock number. Each used Cummins 6CT 8.3 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 6CT 8.3 Engine Specifications
| Displacement | 8.3 L (505 cu in) |
| Configuration | Inline-6, turbocharged, fully mechanical |
| Power | ~215–300 HP (varies by rating) |
| Fuel System | Mechanical Bosch injection |
| Common Uses | Medium-heavy trucks, buses, agricultural and industrial equipment, marine |
| Engine Family | Mechanical C series; distinct from the electronic ISC 8.3 |
What Uses the Cummins 6CT 8.3 Engine
Medium-heavy trucks, buses, agricultural and industrial equipment, marine
Cummins 6CT 8.3 Fitment and Model Comparison
The 6CT 8.3 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 6CT 8.3
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 6CT 8.3 Engines In Stock
4 in stock. Shop tested used Cummins 6CT 8.3 engines listed by year and stock number.
Cummins 6CT 8.3 Buying FAQ
How do I confirm a Cummins 6CT 8.3 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 6CT 8.3 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 6CT 8.3 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.
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