---
id: what-engine-options-are-available-for-the-gmc-sierra-3500-hd
title: "What engine options are available for the GMC Sierra 3500 HD?"
category: guide
subtopic: sierra-3500hd-engines
page_type: guide
source_url: "https://www.markquartmotors.com/research/gmc/sierra-3500hd.htm"
tags: ["engine", "performance", "duramax", "diesel", "gas"]
questions:
  - "Which engines can I get in the Sierra 3500 HD?"
  - "Should I choose gas or diesel for the Sierra 3500 HD?"
  - "What's the horsepower and torque of each engine?"
related: [sierra-3500hd-overview, sierra-3500hd-trailering]
dealer: Markquart Motors
---

The 2024 GMC Sierra 3500 HD offers two excellent engine choices. The standard option is a refined 6.6L V-8 gas engine producing 401 horsepower and 464 pound-feet of torque, paired with a 10-speed automatic transmission. This engine is available with rear-wheel or four-wheel drive.

For maximum power, upgrade to the available 6.6L Duramax turbo-diesel V-8, which generates 470 horsepower and 975 lb-ft of torque. The diesel pairs with an Allison-certified 10-speed automatic and is ideal if you regularly tow heavy loads. Both engines deliver a responsive, refined driving experience.

The Sierra 3500 HD also lets you choose between a single rear axle or dual rear-wheel axle (dually) configuration. Call Markquart Motors at (715) 833-0444 to discuss which powertrain best fits your towing and hauling needs, or browse our new Sierra inventory online.