Used GMC Sierra 3500HD for Sale nearDover, DE

How much does the GMC Sierra 3500HD cost in today's market?

Used GMC Sierra 3500HD prices span a wide range depending on model year. Here's what the market looks like right now:

The GMC Sierra 3500HD's current nationwide average price is $59,590, and its lowest point over the past year was $57,378. Recently, prices have come down for the 2023, 2024, and 2025 models, making now a good time to shop recent model years.

Is the GMC Sierra 3500HD a good car?

Yes — the GMC Sierra 3500HD earns strong marks from owners across its long run, especially for towing strength, power, and durability. The all-generations owner rating is 4.62/5 across every model year in the data.

Owners repeatedly praise its impressive towing capacity, powerful performance, and durable build quality. Many also appreciate the comfortable ride and spacious interior, which help it work well for both jobsite duty and everyday driving. 32.5% of listings are priced as good or great deals.

Are GMC Sierra 3500HD models reliable?

Owners consistently praise the Sierra 3500HD for its strong performance, durable construction, and confidence when pulling heavy loads. The available owner feedback also points to a comfortable ride and a well-built feel across multiple model years.

• Owners rate the GMC Sierra 3500HD between 3.0 and 5.0 out of 5 stars across all model years in the data.

For used buyers, long-term ownership risk is worth checking carefully on older trucks, especially when you review service history and recall records before you buy.

What should I look for when buying a used GMC Sierra 3500HD?

Across all model years, accident-free inventory is solid at 86.1% — always verify the vehicle history report.

Older model years carry meaningfully higher accident rates, so always verify the vehicle history report on pre-2019 models.

What GMC Sierra 3500HD do most buyers choose?

The GMC Sierra 3500HD years with the most listings are 2025, 2024, and 2023.

Higher-volume years tend to draw more shoppers because they give you more inventory to compare, more trim and configuration choices, and more chances to find a truck that fits your budget and equipment needs. They also tend to be easier to shop quickly because there are more listings in the market at once.

What is the GMC Sierra 3500HD's resale value?

Most model years in the Sierra 3500HD lineup are down year over year, which is helpful if you're shopping used and want to catch a softer market. The largest drops are concentrated in the newer and mid-cycle years, while a few older years are changing more slowly. That mix gives you several places to shop for value depending on how new you want your truck to be.

The 2016, 2019, and 2018 model years have held their value best, with the smallest year-over-year price changes.

Should I buy a used GMC Sierra 3500HD now or wait for the next model?

Buy now if:

• Price trend: The 2025 model is at −9.87% versus a year ago, and the 2024 model is at −7.8%.
• Deal availability: The 2025 model has 33.8% good and great deals, and the 2024 model has 35.6%.
• Sweet-spot year: The 2025 model has the most listings at a current average price of $73,893.

If you're buying used today, the 2025 model year offers the best mix of value and availability. If you want the newest version, it may be worth waiting for the next model year's inventory to build up.

These recommendations are based on CarGurus' proprietary market data from October 6, 2026, CarGurus experts' opinions, and generative AI.