Used 2020 GMC Sierra 3500HD for Sale near Alabama
71 results
CarGurus Analysis:
2020 GMC Sierra 3500HD
With 476 currently listed for sale and an average price of $50,835.00, 31.5% of 2020 GMC Sierras 3500HD for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2020 GMC Sierra 3500HD 5 / 5 stars.
73.9% of 2020 Sierra 3500HD models on CarGurus are accident free.
The 2020 GMC Sierra 3500HD is celebrated for its impressive performance, particularly in towing capabilities, and offers a luxurious alternative compared to typical heavy-duty trucks.
CarGurus Analysis: 2020 GMC Sierra 3500HD
Summary
With 476 currently listed for sale and an average price of $50,835.00, 31.5% of 2020 GMC Sierras 3500HD for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2020 GMC Sierra 3500HD 5 / 5 stars.
73.9% of 2020 Sierra 3500HD models on CarGurus are accident free.
The 2020 GMC Sierra 3500HD is celebrated for its impressive performance, particularly in towing capabilities, and offers a luxurious alternative compared to typical heavy-duty trucks.
Why it stands out
The 2020 GMC Sierra 3500HD shines as a formidable player in the heavy-duty truck segment, known for its exceptional towing and hauling capabilities. With options for a robust 6.6-liter Duramax diesel engine generating up to 910 lb-ft of torque, it demonstrates remarkable power for serious tasks. Its design caters not just to functionality but also to comfort; the interior is well-appointed, especially in higher trims like the Denali, which provide luxury features such as premium leather seating, advanced infotainment, and cutting-edge safety technologies. This model is particularly appealing to buyers who need a reliable workhorse that doesn't compromise on comfort or style. On the downside, some users have noted a lack of certain technological features found in competing models and have expressed a desire for improved lumbar support adjustments in the seating. Still, the overall blend of power and refinement makes the 2020 GMC Sierra 3500HD a solid choice for anyone in the market for a heavy-duty truck.
Other model years to consider
- Average price: $69,693.00
- Good/great deal percentage: 32.7%
- User rating: 5 / 5
- Total listings: 1,368
- Average price: $57,520.00
- Good/great deal percentage: 32.3%
- Accident-free percentage: 91.3%
- Total listings: 1,311
- Average price: $77,605.00
- Good/great deal percentage: 32.0%
- User rating: 5 / 5
- Total listings: 1,242
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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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 |
|---|---|
| Base Double Cab LB 4WD | $42,600 |
| Base Crew Cab LB 4WD | $44,400 |
| Base Crew Cab 4WD | $44,200 |
| Denali Crew Cab LB DRW 4WD | $66,900 |
| SLE Crew Cab 4WD | $48,200 |
| SLT Crew Cab 4WD | $56,800 |
| AT4 Crew Cab 4WD | $59,500 |
| 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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