Answer
Dec 01, 2024 - 11:45 AM
The best years for the 5.9L Cummins engine are generally considered to be 2006-2007, particularly the 24-valve versions with the Common Rail fuel injection system. These models are highly favored for their balance of reliability, simplicity, and power. They lack the more complex emissions systems found in later engines, making them easier to maintain and modify.
Earlier models, like the 12-valve versions from 1994-1998, are also highly regarded for their mechanical simplicity and legendary durability, especially for off-road and towing applications.
