2001 – 2006 · 1 body style available
GMT800
2007 – 2014 · 1 body style available
GMT900
2015 – 2019 · 1 body style available
K2XX
2020 – 2024 · 1 body style available
T1XX
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Still deciding on the GMC Sierra 3500 HD?
Answer a few quick questions and see your top 3 used cars, with the years to shop.
Four severity levels
CriticalDeal-breakers
MajorCostly soon
CautionKeep an eye on
OKLow concern
Every Squeezed guide sorts findings from Critical to OK, so you see the deal-breakers on the Sierra 3500 HD before anything else.
Frequently asked questions
What generations of the GMC Sierra 3500 HD are there?
GMT800 (2001 to 2006); GMT900 (2007 to 2014); K2XX (2015 to 2019); T1XX (2020 to 2024).
Should I get a pre-purchase inspection on a used GMC Sierra 3500 HD?
Yes. A Squeezed guide is the triage before the inspection: it shows what to check and what to ask the seller, so you know which listings are worth a mechanic's time.