Cummins Marine Engines From Smallest to Biggest | Guide
September 3, 2026
- Cummins Marine Engine Lineup: From Compact Auxiliaries to Heavy-Duty Commercial Power
- Cummins QSK95
- Cummins Marine Engine Parts
- Request a Quote
- Cummins Marine Engines From Smallest to Biggest
- Cummins 4B
- Cummins 4BT
- Cummins 4BTA
- Cummins B4.5
- Cummins 6BT
- Cummins 6BTA
- Cummins QSB5.9
- Cummins QSB6.7 / QSB7
- Cummins 6CTA8.3
- Cummins QSC8.3
- Cummins QSL9
- Cummins QSM11
- Cummins NT855
- Cummins NTA855
- Cummins X15
- Cummins KTA19
- Cummins QSK19
- Cummins VTA28
- Cummins KTA38
- Cummins QSK38
- Cummins KTA50
- Cummins QSK50
- Cummins QSK60
- 1. Cummins 4B, 4BT & 4BTA: Compact Legacy Workhorses
- 2. Cummins B4.5: Modern Compact Four-Cylinder Power
- 4BT
- 4BTA
- 3. Cummins 6BT & 6BTA: The Famous 5.9-Litre Workhorse
- Cummins 6BT Marine Engine Parts
- Cummins 6BTA Marine Engine Parts
- Cummins QSB6.7
- 4. Cummins QSB5.9: The 5.9-Litre Platform Moves Into a New Generation
- Cummins QSB5.9 Marine Engine
- 5. Cummins QSB6.7 / QSB7: Compact Modern Marine Power
- Cummins QSB6.7 / QSB7 Marine Engine
- 6. Cummins 6CTA8.3: The Legacy 8.3-Litre Step
- Cummins 6CTA8.3 Marine Engine Parts
- 7. Cummins QSC8.3: More Output Without Going Huge
- Cummins QSC8.3 Marine Engine
- 8. Cummins QSL9: Why Displacement Does Not Tell the Whole Story
- Cummins QSL9 Marine Engine
- 9. Cummins QSM11: The Familiar 11-Litre Marine Platform
- Cummins QSM11 Marine Engine
- 10. Cummins NT855 & NTA855: Heavy-Duty Legacy Six-Cylinder Engines
- 11. Cummins X15: Modern 15-Litre Commercial Power
- Cummins X15 Marine Engine
- 12. Cummins KTA19: The Big Mechanical Inline Six
- Cummins KTA19 Marine Engine
- 13. Cummins QSK19: Similar Size Class, Different Generation
- Cummins QSK19 Marine Engine
- 14. Cummins VTA28: Moving Into V12 Territory
- Cummins VTA28 Marine Engine
- 15. Cummins KTA38: Heavy-Duty V12 Power
- Cummins KTA38 Marine Engine
- 16. Cummins QSK38: Later-Generation Heavy Commercial V12
- Cummins QSK38 Marine Engine
- 17. Cummins KTA50: Entering V16 Territory
- Cummins KTA50 Marine Engine
- 18. Cummins QSK50: Later-Generation 50-Litre V16 Power
- Cummins QSK50 Marine Engine
- 19. Cummins QSK60: Very High-Output Commercial Marine Power
- Cummins QSK60 Marine Engine
- 20. Cummins QSK95: The Giant at the Top
- Cummins QSK95 Marine Engine
- From Cummins B-Series to QSK95: What Actually Changes?
- Engine Displacement
- Cylinder Configuration
- Fuel-System Technology
- Cummins QSK
- Maintenance Scale
- Why the Biggest Cummins Marine Engine Is Not Automatically the Best
- Why Cummins Marine Duty Ratings Matter
- Mechanical vs Electronic Cummins Marine Engines
- Legacy & Earlier Cummins Marine Engine Families
- Later Cummins Marine Engine Families
- Which Cummins Marine Engine Is Best for a Yacht?
- Which Cummins Engine Is Best for a Workboat?
- What work does the vessel actually perform?
- Which Cummins Engines Are Used in Tugboat Applications?
- Which Cummins Engines Are Common in Fishing Vessels?
- Which Cummins Engines Are Used for Marine Auxiliary Applications?
- Cummins Marine Spare Parts From Small Engines to QSK95
- Cummins Fuel-System Parts
- Cummins Cooling-System Parts
- Cummins Turbocharger & Air-System Parts
- Cummins Internal Engine Components
- Cummins Electrical & Electronic Components
- QSK engines
- Cummins Overhaul Parts
- Cummins Marine Engine Parts Catalogue
- Marine Engine Spare Parts Catalogue
- Why the Cummins Engine Serial Number Matters
- Identify the engine correctly.
- Engine model + ESN + CPL + existing part number
- Cummins Marine Parts Shipped Worldwide
- The vessel needs the correct part where the vessel is.
- Frequently Asked Questions About Cummins Marine Engines
- What is the smallest Cummins marine engine?
- What is the biggest Cummins marine engine covered in this guide?
- How many cylinders does the Cummins QSB6.7 have?
- How many cylinders does the Cummins QSK95 have?
- How big is the Cummins QSK19?
- How big is the Cummins QSK38?
- How big is the Cummins QSK50?
- Is Cummins QSK19 the same as KTA19?
- Is Cummins QSK38 the same as KTA38?
- Is Cummins QSK50 the same as KTA50?
- Is the Cummins 6CTA8.3 the same as the QSC8.3?
- Is the Cummins 6BTA the same as the QSB5.9?
- Why can a smaller Cummins engine have more horsepower than a larger engine?
- Which Cummins marine engine is best for a yacht?
- Which Cummins marine engine is best for a workboat?
- Which Cummins engines can be used in tugboat applications?
- Is a larger Cummins marine engine automatically more reliable?
- Can I replace a smaller Cummins engine with a larger one?
- Can you supply parts for older Cummins marine engines?
- Cummins Q-Series and QSK engines
- Do you supply Cummins engine overhaul parts?
- Can you ship Cummins marine parts directly to a marina or shipyard?
- What information should I send when requesting Cummins marine parts?
- Browse Cummins Marine Engine Parts by Engine Type
- Cummins 4B Marine Engine Parts
- Cummins 4BT Marine Engine Parts
- Cummins 4BTA Marine Engine Parts
- Cummins QSB5.9 Marine Engine Parts
- Cummins QSB6.7 / QSB7 Marine Engine Parts
- Cummins QSC8.3 Marine Engine Parts
- Cummins QSL9 Marine Engine Parts
- Cummins QSM11 Marine Engine Parts
- Cummins NT855 Marine Engine Parts
- Cummins NTA855 Marine Engine Parts
- Cummins X15 Marine Engine Parts
- Cummins KTA19 Marine Engine Parts
- Cummins QSK19 Marine Engine Parts
- Cummins VTA28 Marine Engine Parts
- Cummins KTA38 Marine Engine Parts
- Cummins QSK38 Marine Engine Parts
- Cummins KTA50 Marine Engine Parts
- Cummins QSK50 Marine Engine Parts
- Cummins QSK60 Marine Engine Parts
- Cummins QSK95 Marine Engine Parts
- Request Cummins Marine Engine Parts
- Cummins B-Series engine
- request@alfamarinespareparts.com
- Worldwide parts supply for marinas, shipyards, yachts, fishing vessels, workboats, commercial vessels, tugboats, offshore operators, marine workshops and vessel-management companies.