: These mid-size trucks offer significant towing capacity for their class (up to 7,700 lbs) and excellent efficiency for daily driving. Critical Inspection Checklist
: Many enthusiasts call this the "holy grail" of Duramax trucks. It was the last year before major emissions controls and is paired with a robust 6-speed Allison transmission. Modern Workhorses (2017–2025)
: On high-mileage diesels (200k+), documented oil and fuel filter changes are more important than the odometer reading. Top 10 Most Reliable Diesel Trucks in North America best used diesel pickup truck to buy
: GM replaced the problematic Bosch CP4 pump with a more durable Denso system for this generation, significantly improving fuel system reliability.
Finding the "best" used diesel pickup truck depends on whether you prioritize modern comfort and efficiency or legendary mechanical simplicity and long-term durability. Below are the top-rated used diesel trucks categorized by their reputations for reliability and capability as of 2026. : These mid-size trucks offer significant towing capacity
: After early turbocharger bugs were ironed out, the 6.7L has become a dependable heavy-towing powerhouse. 2022 models are particularly recommended for their upgraded 12-inch infotainment screens. Light-Duty & Mid-Size Alternatives
: This was the final year for the EcoDiesel in the Ram 1500 . While early generations (2014–2019) had widespread issues, later versions offer a more refined ride thanks to unique rear coil springs. Below are the top-rated used diesel trucks categorized
: On 2008+ models, check if the DPF/SCR systems are intact. Modifications ("deletes") may be illegal in certain regions and can lead to heavy fines.
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