New & Used 2026 GMC Sierra 3500HD for Sale near Mayo, QC

Summary

• With 56 currently listed for sale and an average price of $116,442.00 CAD, 26.8% of 2026 GMC Sierra 3500HDs for sale on CarGurus are rated as good or great deals.

• 100.0% of 2026 Sierra 3500HD models on CarGurus are accident free.

Why it stands out

The 2026 GMC Sierra 3500HD stands out as a heavy-duty pickup that blends serious work capability with a broader spread of trims and features than its utilitarian roots might suggest. It is offered in a regular cab, an extended cab, or a crew cab, with either a short bed or a long bed, and buyers can also choose between single- and dual-wheel rear axles. That flexibility is part of its appeal: the Sierra 3500HD can be configured as a straightforward work truck or as a more upscale, better-equipped hauler.

Power comes from two 6.6-litre V8 options, including a gasoline engine rated at 401 horsepower and 464 pound-feet of torque, and a Duramax turbodiesel V8 rated at 445 hp and 910 lb-ft of torque. The diesel pairs with a 10-speed automatic, and the gas engine uses a six-speed automatic. When properly equipped, the Sierra 3500HD can haul up to 3,375 kilograms and tow up to 16,100 kilograms, figures that underline its place among the most capable pickups in the segment. The truck also offers towing-focused technology such as hitch guidance, trailering assist features, and available safety aids including forward collision alert with automatic emergency braking, a blind-spot monitor with rear cross-traffic alert, lane departure warning, and a teen driver mode.

The trim walk gives the Sierra 3500HD a wide personality range. The base model is intentionally simple, while higher trims add features such as leather upholstery, dual-zone automatic climate control, a Bose premium audio system, a head-up display, surround-view cameras, and luxury touches like premium leather and parking proximity sensors. The off-road-focused AT4 adds suspension tuning, all-terrain tyres, skid plates, a locking rear differential, and unique drive modes, while the top Denali Ultimate brings power-retracting running boards, adaptive cruise control, cooled and massaging front seats, a digital rearview mirror, and a sunroof. A 2024 refresh also brought a larger 13.4-inch infotainment touchscreen and a digital instrument panel to the SLE trim and above, reinforcing the truck’s move toward more modern cabin technology.

There are trade-offs, though. The Sierra 3500HD’s size can make it unwieldy in parking lots, and its top trims can become prohibitively expensive. Even so, its combination of towing strength, configuration variety, and increasingly upscale equipment makes it distinctive among heavy-duty pickups, especially for buyers who want a truck that can work hard without feeling stripped down.

Other model years to consider

• 2024 GMC Sierra 3500HD

  • Average price: $81,641.00 CAD
  • Good/great deal percentage: 26.9%
  • User rating: 5 / 5
  • Total listings: 175

• 2025 GMC Sierra 3500HD

  • Average price: $94,592.00 CAD
  • Good/great deal percentage: 26.4%
  • User rating: 5 / 5
  • Total listings: 148

• 2023 GMC Sierra 3500HD

  • Average price: $74,193.00 CAD
  • Good/great deal percentage: 24.3%
  • Total listings: 152

This analysis is based on CarGurus' proprietary market data from August 31, 2026, CarGurus experts' opinions, and generative AI.