Used 2021 GMC Sierra 3500HD for Sale Nationwide
95 results
CarGurus Analysis:
2021 GMC Sierra 3500HD
With 98 currently listed for sale and an average price of $68,525.00 CAD, 27.6% of 2021 GMC Sierra 3500HDs for sale on CarGurus are rated as good or great deals.
Favourably reviewed: Owners rated the 2021 GMC Sierra 3500HD 5 / 5 stars.
100.0% of 2021 Sierra 3500HD models on CarGurus are accident free.
CarGurus Analysis: 2021 GMC Sierra 3500HD
Summary
With 98 currently listed for sale and an average price of $68,525.00 CAD, 27.6% of 2021 GMC Sierra 3500HDs for sale on CarGurus are rated as good or great deals.
Favourably reviewed: Owners rated the 2021 GMC Sierra 3500HD 5 / 5 stars.
100.0% of 2021 Sierra 3500HD models on CarGurus are accident free.
Why it stands out
The 2021 GMC Sierra 3500HD stands out in the heavy-duty truck segment for its blend of performance, luxury, and utility. It offers impressive towing capabilities, reaching up to 16,100 kilograms (35,500 pounds) when properly equipped, making it a top choice for drivers needing substantial hauling power. The truck's design has evolved to include more refined and luxurious trims, particularly the Denali models, which come equipped with premium features and high-end finishes. The fifth-generation model boasts updated technology, spacious interiors, and robust safety features, enhancing the overall driving experience. Additionally, the Sierra 3500HD maintains an outstanding accident-free record, highlighting its reliability and durability. For those seeking a balance of rugged utility and sophisticated comfort, the 2021 Sierra 3500HD is an appealing option.
Other model years to consider
- Average price: $83,703.00 CAD
- Good/great deal percentage: 31.8%
- User rating: 5 / 5
- Total listings: 151
- Average price: $77,218.00 CAD
- Good/great deal percentage: 30.5%
- Accident-free percentage: 100.0%
- Total listings: 154
- Average price: $94,599.00 CAD
- Good/great deal percentage: 35.0%
- User rating: 5 / 5
- Total listings: 120
This analysis is based on CarGurus' proprietary market data from June 1, 2026, CarGurus experts' opinions, and generative AI.
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5.0 Overall rating
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John P
Reviewed a 2021 GMC Sierra 3500HD on Nov 3, 2023
This truck is incredible and very comfortable for even daily use.
Anonymous
Reviewed a 2021 GMC Sierra 3500HD on Jun 5, 2021
This truck was what was needed to pull our 42’ 5th wheel safely. It has the comfort of a nice ride and the power to pull and the and the strength to haul what I need.
Joe H
Reviewed a 2021 GMC Sierra 3500HD on Feb 8, 2021
The Black Diamond Edition is one of the most popular trucks out there. There has been only 2 in our area and both sold before they arrived at the lot.
2021 GMC Sierra 3500HD Trims
| Trim type | MSRP |
|---|---|
| SLE Double Cab LB 4WD | $47,800 |
| SLE Crew Cab 4WD | $49,400 |
| AT4 Crew Cab 4WD | $60,300 |
| Denali Crew Cab 4WD | $66,700 |
2021 GMC Sierra 3500HD Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2021 GMC Sierra 3500HD prices has changed over time.
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