Used 2021 Chevrolet Silverado 3500HD for Sale near Ontario

How much does the 2021 Chevrolet Silverado 3500HD cost?

Prices have softened 10.01% compared to this time last year, making it a favourable time to shop this model year.

There are 76 listings available, which gives you a reasonable amount of inventory to compare before you buy.

Is the 2021 Chevrolet Silverado 3500HD a good car?

Yes — the 2021 Chevrolet Silverado 3500HD earns a 5/5 user rating, which points to strong owner satisfaction. It is built for serious work rather than everyday softness, with a huge, bluff front end and capability numbers that include up to 16,300 kilograms of towing and 3,300 kilograms of payload. If you need a truck that feels purpose-built for hauling, its size, strength, and clear identity are a major part of the appeal. The market also shows 31.6% of listings as good or great deals, which gives you some room to shop selectively.

Is the 2021 Chevrolet Silverado 3500HD reliable?

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

The 2021 Silverado 3500HD is presented as a work-focused heavy-duty truck with a strong mix of powertrain choice, trailering technology, and available safety equipment. Its standard 6.6-litre gas V8 and optional Duramax turbodiesel V8 both pair with an Allison ten-speed automatic, and the truck also offers useful cab, bed, and drivetrain combinations. For used buyers, the main long-term ownership risk is that a truck built for hard work may have seen demanding use, so condition and maintenance history matter.

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 carefully and still find worthwhile options.

• Deal availability: 31.6% of listings are priced as good or great deals.
• Inventory: There are 76 listings available.
• Price trend: Prices have softened 10.01% compared with last year.

If you find a listing below $56,663 CAD, 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 $56,978 CAD sits slightly below last year's $63,312 CAD.

That price movement suggests the market has eased, which can make the truck more attractive to buyers today but may also limit upside for a future seller if values continue to soften. On the other hand, a heavy-duty pickup with clear capability and strong demand from work-focused shoppers can still hold attention well when it is properly equipped and well maintained. Vehicles with strong owner satisfaction ratings, like this model year's 5/5, tend to retain buyer demand, which supports resale value over time.

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:

• 31.6% of listings are priced as good or great deals.
• Price trend: Prices have softened 10.01% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.

The bottom line: If you want a heavy-duty truck with strong owner satisfaction, a softer price trend, and enough inventory to compare options, the 2021 is the primary year to target. If you are especially price-sensitive, you can also use nearby model years as a secondary path to widen your search and potentially find a lower asking price.

These recommendations are based on CarGurus' proprietary market data from October 13, 2026, CarGurus experts' opinions, and generative AI.