---
id: what-can-the-gmc-sierra-heavy-duty-tow
title: "What can the GMC Sierra Heavy Duty tow?"
category: faq
subtopic: gmc-sierra-hd-perf
page_type: faq
source_url: "https://www.markquartmotors.com/new-vehicles/gmc/trucks.htm"
tags: ["Sierra HD", "heavy duty", "diesel", "towing", "work truck"]
questions:
  - "How much can a GMC Sierra Heavy Duty tow?"
  - "What engine does the Sierra Heavy Duty have?"
  - "Is the Sierra HD good for commercial use?"
related: [gmc-trucks-overview, gmc-sierra-1500-perf]
dealer: Markquart Motors
---

The 2026 GMC Sierra Heavy Duty is built to dominate the toughest jobs. It features an **available Duramax 6.6L Turbo-Diesel V8 with 470 horsepower and 975 lb-ft of torque**, delivering **max towing up to 36,000 pounds**-the muscle to handle serious commercial and work demands. Standard features include two-speed transfer cases, skid plates, and trail hardware on premium trims. The HD also includes advanced trailering systems with towing-focused assists and camera technology with up to 14 views for confident navigation. Perfect for professional drivers and work-vehicle owners. Call **(715) 833-0444** to speak with Markquart Motors' commercial and fleet sales team.