Used 2020 GMC Sierra 3500HD for Sale near Appleton, WI
66 results
CarGurus Analysis:
2020 GMC Sierra 3500HD
With 480 currently listed for sale and an average price of $50,210.00, 32.5% of 2020 GMC Sierra 3500HDs for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2020 GMC Sierra 3500HD 5 / 5 stars.
77.3% of 2020 Sierra 3500HD models on CarGurus are accident free.
The 2020 GMC Sierra 3500HD offers impressive towing capabilities of up to 35,500 pounds and a push for luxury features in its higher trims, such as the Denali.
CarGurus Analysis: 2020 GMC Sierra 3500HD
Summary
With 480 currently listed for sale and an average price of $50,210.00, 32.5% of 2020 GMC Sierra 3500HDs for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2020 GMC Sierra 3500HD 5 / 5 stars.
77.3% of 2020 Sierra 3500HD models on CarGurus are accident free.
The 2020 GMC Sierra 3500HD offers impressive towing capabilities of up to 35,500 pounds and a push for luxury features in its higher trims, such as the Denali.
Why it stands out
The 2020 GMC Sierra 3500HD distinguishes itself with its outstanding hauling and towing capabilities, making it an excellent choice for those needing a workhorse that excels in performance. This heavy-duty truck is available with either a robust 6.6-liter V8 engine or a powerful 6.6-liter Duramax turbodiesel V8, which supports impressive torque and horsepower levels. Owners appreciate the luxurious touches in higher trims, especially in the Denali version that features premium materials and advanced technology. Additionally, the Sierra 3500HD has a strong reputation for reliability and robust build quality, as noted by owner reviews. However, potential buyers should be aware that top-end models can come with a hefty price tag and that parking in tight spots can be a challenge due to its bulkier dimensions.
Other model years to consider
- Average price: $69,409.00
- Good/great deal percentage: 32.2%
- User rating: 5 / 5
- Total listings: 1,350
- Average price: $58,710.00
- Good/great deal percentage: 32.1%
- Accident-free percentage: 91.3%
- Total listings: 1,310
- Average price: $78,810.00
- Good/great deal percentage: 31.0%
- User rating: 5 / 5
- Total listings: 1,148
This analysis is based on CarGurus' proprietary market data from April 13, 2026, CarGurus experts' opinions, and generative AI.
Relevant articles
The Best Dually Trucks of 2026
Trucks have gone quite lux lately, and are more often used to get around town than to get work done. The most capable of these trucks are nicknamed “duallies”, which those equipped with dual rear wheels.
GMC Sierra 3500HD Buying Guide: Cost, Reliability, and the Best Years to Buy
Discover the ultimate buying guide for purchasing a used GMC Sierra 3500HD covering each generation since 1988. Whether you're a first-time buyer or a GMC enthusiast, this comprehensive overview will help you research your next pre-owned GMC Sierra 3500HD.
2025 GMC Sierra 3500HD Pricing, Specs, and Release Date
Like its slightly less beefy 2500HD sibling, the 2025 GMC Sierra 3500HD offers added features for the new model year, including a standard trailer brake controller.
5.0 Overall rating
Filter by rating
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 LB RWD | $37,000 |
| Base Double Cab LB 4WD | $42,600 |
| Base Crew Cab LB 4WD | $44,400 |
| Base Crew Cab 4WD | $44,200 |
| SLT Crew Cab 4WD | $56,800 |
| SLE Crew Cab 4WD | $48,200 |
| 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.
See more price trends
