Best Used Diesel Pickup Truck To Buy (2027)

: Widely considered the most reliable diesel pickup ever made. It is prized for its mechanical simplicity and the Bosch P7100 "P-pump," which can easily surpass 500,000 miles.

: GM replaced the problematic Bosch CP4 pump with a more durable Denso system for this generation, significantly improving fuel system reliability. best used diesel pickup truck to buy

For buyers who need current technology, advanced towing assists, and refined interiors, these modern models have shown the best reliability track records. : Widely considered the most reliable diesel pickup

These older trucks are highly sought after because they lack the complex emissions systems (DEF, DPF, SCR) that often cause reliability issues in newer models. For buyers who need current technology, advanced towing

Before buying, use these red-flag indicators to avoid expensive repairs:

: 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)

: 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