GMC Sierra HD
Every GMC Sierra HD generation in the Burbles catalogue — complete specs, rarity tiers, interactive 3D cards, and the collectors who have spotted them on the street.
- Lineage Span
- 2001–present 4 generations · 12 published trims
- Power Evolution
- 300 → 401 hp Base lead-trim output across eras
- Catalogue Rarity
- 4 Graded 4 Rare/Common
All 4 GMC Sierra HD Generations
Each generation deals in its rarity tier’s alloy with its engine disc, lead specs, and first spotter record. Click into any generation for full trims and market figures.

Heavy-duty truck segment with lower volumes than light-duty but strong durability and recent production. About 150,000 on North American roads today (estimate).

Cars.com's 2015 one-ton challenge was won by a Sierra 3500HD dually with the Duramax diesel.

J.D. Power's most dependable large pickup of 2013 was a 2010 Sierra 2500HD.

The Duramax diesel arrived in 2001 Chevrolet and GMC trucks, an Isuzu-built V8 making 300 hp and 520 lb-ft.
Collectors Who Spotted the GMC Sierra HD
No member has published a public street spot of the GMC Sierra HD yet — the First · Worldwide stamp is wide open.
GMC Sierra HD Generation-by-Generation Comparison
Lead figures across every published generation, newest to oldest. Select any generation to inspect all trims and engine options.
| Generation | Years | Tier & Rarity | Engine | Power & Torque | 0–60 mph | Weight | Trims | First Spotter |
|---|---|---|---|---|---|---|---|---|
| Sierra HD T1XX (2020–present)T1XX | 2020–present | Uncommon | 6.6L V8 | 401 hp · 464 lb-ft | — | — | 5 trims → | Unclaimed |
| Sierra HD K2XX (2015–2019)K2XX | 2015–2019 | Common | 6.6L V8 | 397 hp · 765 lb-ft | — | — | 2 trims → | Unclaimed |
| Sierra HD GMT900 (2007–2014)GMT900 | 2007–2014 | Common | 6.6L V8 | 365 hp · 660 lb-ft | — | — | 2 trims → | Unclaimed |
| Sierra HD GMT800 (2001–2007)GMT800 | 2001–2007 | Common | 6.6L V8 | 300 hp · 520 lb-ft | — | — | 3 trims → | Unclaimed |
See a GMC Sierra HD on the street, point Burbles at it, and that generation’s card goes in your binder with your own photo and serial number. Own one? Add it to your garage in the app.