Used 2021 Chevrolet Silverado 3500HD for SaleNationwide

How much does the 2021 Chevrolet Silverado 3500HD cost?

Prices have softened 5.21% compared to this time last year, making it a favorable time to shop this model year.

There are 989 listings available, which gives you a solid pool of trucks to compare.

Is the 2021 Chevrolet Silverado 3500HD a good car?

Yes — the 5/5 user rating and 8.33/10 expert rating point to a truck that delivers strongly for shoppers who need heavy-duty capability with everyday usability. The Silverado 3500HD is described as a work-focused truck that can still handle daily duty, with strengths in towing and hauling, multiple powertrain options, easy-to-use technology, and plenty of cargo space.

The standout strength is Form and function at 10/10.

The trade-offs are a potentially polarizing design and poor visibility over the front hood, so you should expect a truck that prioritizes utility over outward visibility and broad styling appeal.

29.6% of listings are priced as good or great deals, which suggests there are still worthwhile opportunities if you shop carefully.

Is the 2021 Chevrolet Silverado 3500HD reliable?

Owners rate it 5/5, a strong signal of long-term satisfaction.

The Silverado 3500HD is presented as a heavy-duty truck built for demanding towing and hauling, and the expert review emphasizes that it can still deliver on everyday needs while offering the comforts buyers expect. Its powertrain lineup is straightforward, and the diesel setup is described as having a lot of pickup thanks to the 10-speed automatic, which helps keep the truck in the ideal gear for optimal performance.

The cost-effectiveness notes also point to a five-year, 60,000-mile powertrain warranty, which adds some ownership reassurance. For used buyers, the main long-term risk is that a truck this capable may have been worked hard, so condition and maintenance history matter a lot.

What should I look for when buying a used 2021 Chevrolet Silverado 3500HD?

Accident-free inventory is solid at 78.7% — always verify the vehicle history report.

You should still check the history report carefully, because heavy-duty trucks are often used for towing, hauling, and other demanding jobs. Prioritize a pre-purchase inspection that focuses on wear from hard use, and pay close attention to the truck’s condition, especially if it has been configured for frequent trailering or commercial-style duty.

Key things to evaluate:

• Trim level: The W/T starts with two USB ports, vinyl seat trim, two-tier trailering mirrors, and a 7-inch touchscreen with Apple CarPlay and Android Auto. The LT adds cloth seating, body-color door handles, an EZ lift-and-lower tailgate, a 4.2-inch driver information display, an integrated trailer brake controller, a 4G LTE WiFi hotspot, and an 8-inch touchscreen. The LTZ adds chrome exterior accents, leather upholstery, heated front seats, remote start, dual-zone automatic climate control, 120-volt wall-style power outlets, and extending mirrors with integrated turn signals. The High Country adds heated and ventilated front seats, chrome side steps, a Bose premium sound system, and a spray-in bed-liner.
• Powertrain: You get a standard 6.6-liter V8 with 401 horsepower and 464 pound-feet of torque, or an optional Duramax turbodiesel 6.6-liter V8 with 445 hp and 910 lb-ft of torque. The gas engine uses a six-speed automatic, while the diesel pairs with an Allison 10-speed automatic. Both can be had with rear-wheel drive or available four-wheel drive with low range.
• Safety package: The truck comes standard with a backup camera and a full array of front- and side-impact airbags. Forward collision avoidance, lane-departure warning, automatic emergency braking, automatic high beams, blind-spot monitoring, rear cross-traffic alert, front and rear parking sensors, and a 360-degree parking camera system are available, but not standard.
• Infotainment: The standard setup uses a 7-inch touchscreen, while upgraded trims get an 8-inch touchscreen and the High Country adds navigation. The system is designed to be easy to use, with hard buttons and dials plus a helpful home button.
• Fuel efficiency: Drivers can expect fuel economy between 12 and 15 mpg.

Which 2021 Chevrolet Silverado 3500HD trim should I buy?

The 2021 Chevrolet Silverado 3500HD is offered in 4 trim levels: W/T, LT, LTZ, and High Country.

Here's the short version:

• W/T: This is the most affordable path into the Silverado 3500HD, and it still gives you the essentials you need for work use, including the 7-inch touchscreen, Apple CarPlay, Android Auto, and trailering mirrors. It makes sense if you want the truck’s core capability without paying for comfort extras.
• LT: This is the best-value trim for many buyers because it adds a larger 8-inch touchscreen, an integrated trailer brake controller, a WiFi hotspot, cloth seating, and the EZ lift-and-lower tailgate. If you want a more balanced mix of work features and everyday convenience, this is the trim to focus on.
• LTZ: This trim steps up with leather upholstery, heated front seats, remote start, dual-zone automatic climate control, chrome accents, and an advanced trailering system. It suits you if you want a more upscale cabin and more towing-focused tech.
• High Country: This is the luxury-oriented choice, with heated and ventilated front seats, a Bose premium sound system, navigation, chrome side steps, and a spray-in bed-liner. It fits you best if you want the most comfort and equipment in the lineup.

For safety, features such as forward collision avoidance, lane-departure warning, automatic emergency braking, blind-spot monitoring, rear cross-traffic alert, parking sensors, and a 360-degree camera system are available rather than standard.

Is now a good time to buy a used 2021 Chevrolet Silverado 3500HD?

This looks like a moderate, selective buyer’s market, so you can shop with some leverage if you’re patient and compare listings carefully.

• Deal availability: 29.6% of listings are priced as good or great deals.
• Inventory: There are 989 listings available.
• Price trend: Prices have softened 5.21% compared with last year.
• Clean inventory: 78.7% of listings are accident-free.

If you find a listing below $46,644, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2021 Chevrolet Silverado 3500HD's resale value?

The current average of $46,644 sits slightly below last year's $49,206.

That price movement suggests the market has cooled a bit, which can help you as a buyer today but may also mean a future seller has less room to command a premium. If you buy well and keep the truck in strong condition, the Silverado 3500HD’s heavy-duty capability should help it stay relevant with shoppers who need serious towing and hauling. The broad trim range and strong utility also support demand over time.

Vehicles with strong owner satisfaction ratings, like this model year's 5/5, tend to retain buyer demand, which supports resale value over time.

Is the 2021 Chevrolet Silverado 3500HD safe?

It earns an 8/10 safety score from our experts.

The Silverado comes standard with a backup camera and a full array of front- and side-impact airbags. For safety features such as forward collision avoidance, lane-departure warning, automatic emergency braking, automatic high beams, blind-spot monitoring, and rear cross-traffic alert, you’ll have to pay extra. You’ll also have to shell out for the front and rear parking sensors and a 360-degree parking camera system—two options that are particularly helpful, given the Silverado 3500HD’s sheer size.

Should I buy a 2021 Chevrolet Silverado 3500HD or consider a different year?

If you're weighing the 2021 against nearby model years, here's how to think about it:

Choose the 2021 if:

• 29.6% of listings are priced as good or great deals.
• Accident-free inventory is solid at 78.7% — always verify the vehicle history report.
• Price trend: Prices have softened 5.21% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.
• The 2021 model combines heavy-duty towing and hauling strength with everyday usability, easy-to-use technology, and plenty of cargo space.

The bottom line: The 2021 Silverado 3500HD makes the most sense if you want a heavy-duty truck that can still work as a daily driver and you value strong capability, broad trim choice, and a softer used-market price than last year. If you’re especially price-sensitive, keep shopping the lower end of the range and focus on well-maintained trucks with clean history reports.

These recommendations are based on CarGurus' proprietary market data from September 15, 2026, CarGurus experts' opinions, and generative AI.