GMC Sierra 3500HD AT4 performance summary
The 2026 GMC Sierra 3500HD AT4 makes 401 hp and 629 Nm of torque. It runs 0-100 km/h in 7.7s, about 7.2s from 0-60 mph, and reaches a listed top speed of 106 mph (170 km/h). In the Carspeed quarter-mile simulation, it covers 402 m in 15.78s.
On Carspeed's data it is relaxed — quicker off the line than 36% of the cars in our database, with more power than 72% of them and a higher top speed than 10%. That works out to roughly 180 per horsepower at list price.
GMC Sierra 3500HD AT4 photos
Photos: Wikimedia Commons / CC
How the GMC Sierra 3500HD AT4 ranks against 1,483 cars
GMC Sierra 3500HD AT4 vs its closest rivals
| Car | HP | 0–100 | Top speed | 1/4 mi |
|---|---|---|---|---|
| GMC Sierra 3500HD AT4 | 401 | 7.7s | 170 km/h | 15.78s |
| GMC Sierra 2500HD PRO | 401 | 7.7s | 170 km/h | 15.78s |
| GMC Sierra 3500HD PRO | 401 | 7.8s | 170 km/h | 15.86s |
| GMC Sierra 2500HD AT4 | 401 | 7.5s | 170 km/h | 15.64s |
| GMC Sierra 2500HD Denali Black Edition | 401 | 7.5s | 170 km/h | 15.64s |
| GMC Sierra HD Denali Reserve | 401 | 7.5s | 170 km/h | 15.64s |
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GMC Sierra 3500HD AT4 FAQ
What is the GMC Sierra 3500HD AT4 0-60 mph time?
The GMC Sierra 3500HD AT4 does 0-60 mph in about 7.2s, based on its 7.7s 0-100 km/h figure.
What is the top speed of the GMC Sierra 3500HD AT4?
The listed top speed is 106 mph, or 170 km/h.
How much horsepower does the GMC Sierra 3500HD AT4 have?
The GMC Sierra 3500HD AT4 is listed at 401 hp with 629 Nm of torque.
What is the GMC Sierra 3500HD AT4 quarter-mile time?
Carspeed estimates the GMC Sierra 3500HD AT4 quarter-mile at 15.78s over 402 m using its published performance data.
What cars are similar to the GMC Sierra 3500HD AT4?
Similar performance rivals include GMC Sierra 2500HD PRO, GMC Sierra 3500HD PRO, GMC Sierra 2500HD AT4.