Used 2020 GMC Sierra 3500HD for Sale near Alberta
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CarGurus Analysis:
2020 GMC Sierra 3500HD
With 63 currently listed for sale and an average price of $60,969.00 CAD, 19.0% of 2020 GMC Sierra 3500HDs for sale on CarGurus are rated as good or great deals.
Favourably reviewed: Owners rated the 2020 GMC Sierra 3500HD 5 / 5 stars.
100.0% of 2020 Sierra 3500HD models on CarGurus are accident free.
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CarGurus Analysis: 2020 GMC Sierra 3500HD

Summary
With 63 currently listed for sale and an average price of $60,969.00 CAD, 19.0% of 2020 GMC Sierra 3500HDs for sale on CarGurus are rated as good or great deals.
Favourably reviewed: Owners rated the 2020 GMC Sierra 3500HD 5 / 5 stars.
100.0% of 2020 Sierra 3500HD models on CarGurus are accident free.
Why it stands out
The 2020 GMC Sierra 3500HD is designed to cater to those who require a robust, reliable heavy-duty truck capable of handling substantial towing and hauling tasks. It features impressive performance with options that include a 6.6-litre Duramax turbodiesel V8 capable of generating 445 horsepower and an outstanding 910 lb-ft of torque. This allows the Sierra 3500HD to tow up to 16,100 kilograms (35,500 pounds) when equipped properly, making it a formidable contender in the heavy-duty truck segment.
Owners have expressed satisfaction with its comfort, build quality, and exceptional towing capabilities, often comparing it favourably to competitors like Ford and Ram. However, some have noted the absence of particular features such as a CD player and optimal lumbar support adjustments. The Sierra's market positioning combines rugged functionality with modern comforts, particularly evident in higher trim levels which feature luxurious interiors and advanced technology for trailering and off-roading.
Other model years to consider
- Average price: $84,960.00 CAD
- Good/great deal percentage: 23.3%
- User rating: 5 / 5
- Total listings: 163
- Average price: $76,642.00 CAD
- Good/great deal percentage: 27.0%
- Accident-free percentage: 100.0%
- Total listings: 163
- Average price: $96,811.00 CAD
- Good/great deal percentage: 28.7%
- User rating: 5 / 5
- Total listings: 136
This analysis is based on CarGurus' proprietary market data from June 15, 2026, CarGurus experts' opinions, and generative AI.
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5.0 Overall rating
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Christine A
Reviewed a 2020 GMC Sierra 3500HD on Jun 16, 2023
Besides the bells and whistles we grabbed this dually because we pull a toy hauler. We went from a sturdy 2500 Dodge Ram to this beauty. We choose the dually 3500 due to the pulling capacity and payload as toy haulers are heavier in front to compensate for the weight that you can put in the back. We have no issues pulling it now and the truck does not squat because the support of the 4 tires. Other friends have regular 3500 and still have issues with the payload and had to put in more money into their vehicle to beef up the suspension when pulling a toy hauler because the payload is less. YOU WONT REGRET BUYING ONE!
Dwayne M
Reviewed a 2020 GMC Sierra 3500HD on Jan 2, 2022
The 2020 GMC Sierra 3500 HD is a great truck and investment. This truck is well built and drives great and is very comfortable to ride in. Plus has great looks.
bill z
Reviewed a 2020 GMC Sierra 3500HD on Oct 18, 2020
better than ford or ram, hard to beat gmc track record
Anonymous
Reviewed a 2020 GMC Sierra 3500HD on Jul 2, 2021
It is missing a CD player. The lumbar support needs more better adjustment.
2020 GMC Sierra 3500HD Trims
| Trim type | MSRP |
|---|---|
| SLE RWD | $41,600 |
| SLT Crew Cab 4WD | $56,800 |
| Base LB 4WD | $39,800 |
| Base Crew Cab 4WD | $44,200 |
| AT4 Crew Cab 4WD | $59,500 |
| SLE Crew Cab 4WD | $48,200 |
| Denali Crew Cab 4WD | $65,500 |
2020 GMC Sierra 3500HD Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2020 GMC Sierra 3500HD prices has changed over time.
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