BuyingApril 8, 20267 min
5.9L or 6.7L: buying a used Cummins in 2026
The honest trade-offs between the last common-rail 5.9L and the generations of 6.7L that followed it.
Chris BoydRead
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No filler articles. Every piece here comes from a truck that was actually on the lift — what failed, what we tested, and what we would put on our own rig.
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BuyingThe honest trade-offs between the last common-rail 5.9L and the generations of 6.7L that followed it.
Call the shop or send the details. We answer technical questions for customers and non-customers alike — it is how we end up writing half of these articles.