Skip to main content

Contact seller

Contact seller

By clicking here, you authorize Cars.com and its sellers/partners to contact you by text/calls which may include marketing and be by autodialer. Calls may be prerecorded. You also agree to our Privacy Notice. Consent is not required to purchase goods/services.

We value your privacy. Cars.com Privacy Notice

Customize your budget

Est. max vehicle price based on your desired monthly budget (...% APR*. and ...% sales tax)
$...*
See matching cars

*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.

**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.

About your privacy: Cars.com is asking for your ZIP and credit rating because it helps us to make an educated guess at your sales tax and loan interest. These two factors can greatly change your monthly payment.

Used 2021 GMC Sierra 3500 Denali trucks for sale near me

Filters 6 Year Trim Model Price & payment Make Mileage Ext. color All filters
3 matches 30 miles from 20149
Be the first to know!

Save your search and get notified when new inventory arrives.

Prequalify now

It only takes a few minutes and won't affect your credit.

Get Prequalified
Est. $400 /mo*
Down Payment
$0
Net trade-in value
$0
Months
72
APR
7.0%
Sales tax
0.0%

Vehicle information

Ext. color: Hunter Metallic
Int. color: Dark Walnut/Dark Ash Grey
Drivetrain: Four-wheel Drive
Fuel type: Diesel
Transmission: Automatic
Engine: Duramax 6.6L V-8 diesel direct injection, intercooled turbo, die
Stock #: 00KB0029
VIN: 1GT49WEY6MF266103

Features

Convenience: Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Power Folding Mirrors, Remote Start
Entertainment: Android Auto®, Apple CarPlay®, Bluetooth®, HomeLink, Premium Sound System, Satellite Radio, USB Port, WiFi Hotspot
Exterior: Alloy Wheels, Sunroof/Moonroof, Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rear Cross Traffic Alert, Stability Control
Seating: Leather Seats, Memory Seat

Reviews

Koons of Tysons Chevrolet GMC review

We had a surprisingly (for me) good experience at Koons

We had a surprisingly (for me) good experience at Koons Chevrolet. Our salesperson Abdelilah was not pushy at all but informative. We never felt rushed, something that bugs me at a lot of car lots. Would definitely visit again.

2021 GMC Sierra 3500 Denali review

Truck is a Solid vehicle overall.

Has a really Big feel to it. I currently use mine to pull gooseneck trailer. I haven't had a load yet that I couldn't pull. The downsides to this truck is to me I feel it could get better fuel mileage. Also I had trouble with #4 injector...dealership replaced it. Now my AC doesn't work all the time. Although it sounds like it's blowing it isn't.

Vehicle information

Ext. color: White Frost Tricoat
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Diesel
Transmission: Automatic
Engine: Duramax 6.6L V-8 diesel direct injection, intercooled turbo, die
Stock #: P8733
VIN: 1GT49WEYXMF234707

Features

Convenience: Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment: Android Auto®, Apple CarPlay®, Bluetooth®, Premium Sound System, USB Port, WiFi Hotspot
Exterior: Alloy Wheels, Sunroof/Moonroof, Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rear Cross Traffic Alert, Stability Control
Seating: Leather Seats, Memory Seat

Reviews

Country Chevrolet review

Jacob Davis was awesome!

Jacob Davis was awesome! He helped us narrow down to the vehicle that most met our needs. The finance agent, JC Welch, was also very helpful, friendly, and informative. Overall, they made what is usually a negative experience into a very positive one!

2021 GMC Sierra 3500 Denali review

Love it.

I love the new features this truck offers. I would highly recommend this truck if your looking for a Diesel. I provides all the features and benefits you would want.

Vehicle information

Ext. color: Ebony Twilight Metallic
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Diesel
Transmission: Automatic
Engine: Duramax 6.6L V-8 diesel direct injection, intercooled turbo, die
Stock #: S7221
VIN: 1GT49WEY3MF236637

Features

Convenience: Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Power Folding Mirrors, Power Liftgate, Remote Start
Entertainment: Android Auto®, Apple CarPlay®, Bluetooth®, HomeLink, Premium Sound System, Satellite Radio, USB Port, WiFi Hotspot
Exterior: Alloy Wheels, Sunroof/Moonroof, Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rear Cross Traffic Alert, Stability Control
Seating: Leather Seats, Memory Seat

Reviews

Country Diesels review

Great dealershio

Kaley and the rest of the crew were great. Gave me what I expected on my trade-in. No problems with the whole process. When I told them that I was going to check out another dealership, they did not try hold me back from going. Ended up buying from them.

There are 2 matching cars close to your year range.

Vehicle information

Ext. color: Summit White
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Diesel
Transmission: 6-Speed Automatic
Engine: 6.6L V8 32V DDI OHV Turbo Diesel
Stock #: KTM6940
VIN: 1GT42WEY7KF233760

Features

Convenience: Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Navigation System, Remote Start
Entertainment: Android Auto®, Apple CarPlay®, Bluetooth®, CD Player, DVD Player, Premium Sound System, Satellite Radio, USB Port
Exterior: Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety: Backup Camera, Brake Assist, Lane Departure Warning, Stability Control
Seating: Leather Seats, Memory Seat

Vehicle information

Ext. color: Quicksilver Metallic
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Diesel
Transmission: 10-Speed Automatic
Engine: Duramax 6.6L V-8 diesel direct injection, intercooled turbo, die
Stock #: 3850
VIN: 1GT49WEY7LF215949

Features

Convenience: Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment: Android Auto®, Apple CarPlay®, Bluetooth®, Premium Sound System, USB Port, WiFi Hotspot
Exterior: Alloy Wheels, Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rear Cross Traffic Alert, Stability Control
Seating: Leather Seats, Memory Seat
  • Prev
  • 1
  • Next

GMC Sierra 3500 prices by year

Model year Prices from Deals
2025 GMC Sierra 3500 Denali $73,998 11 Good deals
2024 GMC Sierra 3500 Denali $58,611 7 Great deals
2023 GMC Sierra 3500 Denali $48,897 9 Great deals
2022 GMC Sierra 3500 Denali $50,846 12 Great deals
2020 GMC Sierra 3500 Denali $37,995 21 Great deals
2019 GMC Sierra 3500 Denali $28,900 47 Good deals
2018 GMC Sierra 3500 Denali $32,995 21 Good deals
2017 GMC Sierra 3500 Denali $38,028 12 Good deals
2016 GMC Sierra 3500 Denali $24,250 5 Great deals

About the 2021 GMC Sierra 3500 Denali

Basics

Base shown (base trim).

Seating
2
Door count
2
Drivetrain
Rear-wheel drive
Combined MPG
0
Transmission
6-Speed A/T
Engine
445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)
Side view of the 2021 GMC Sierra 3500 Denali
FAQs

How much does the 2021 GMC Sierra 3500 Denali cost?

The 2021 GMC Sierra 3500 Denali price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2021 Sierra 3500 Denali is $59,942, with pricing starting at $46,599.

What are some similar vehicles and competitors of the 2021 GMC Sierra 3500 Denali?

The 2021 GMC Sierra 3500 Denali compares to and/or competes against the following vehicles:


Is the 2021 GMC Sierra 3500 Denali reliable?

The 2021 GMC Sierra 3500 has an average reliability rating of 4 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 Sierra 3500 owners.

Is the 2021 GMC Sierra 3500 Denali a good truck?

Below are the Cars.com consumer ratings for the 2021 GMC Sierra 3500.

(2 reviews)
Rating breakdown (out of 5):
  • Comfort 4.5
  • Interior 4.5
  • Performance 5.0
  • Value 4.0
  • Exterior 4.5
  • Reliability 4.0
Ratings (2 reviews)

100% of drivers recommend this car

Rating breakdown (out of 5):
  • Comfort 4.5
  • Interior 4.5
  • Performance 5.0
  • Value 4.0
  • Exterior 4.5
  • Reliability 4.0

*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.

**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.

3 matches Clear
Clear
Basics
GMC models
Sierra 3500 trims
Price & payment Full Price Monthly
Monthly budget search results are estimated based on a 72-month loan term with $0 down payment, $0 trade-in value, 0.0 % sales tax and 7.0 % APR. Inputs can be personalized using the calculator.
Financing
Deal rating
Vehicle history
Style
Body style
Cab type
Exterior color
Interior color
Performance
Transmission
Drivetrain
Cylinders
Fuel type
EV range
EV charge time
Features
Convenience
Entertainment
Exterior
Safety
Seating
Door count
Seller info
Seller type
Keyword
Update
Show only

GMC Sierra 3500 trims

[{"applied_filter_criteria":"{\"cpo_indicator\":false,\"make_model_trim\":[{\"trim\":\"denali\",\"make\":\"gmc\",\"model\":\"sierra_3500\"}],\"max_year\":\"2021\",\"min_year\":\"2021\",\"search_range\":\"30\",\"shippable\":true,\"sort_field\":\"best_deal\",\"sort_order\":\"desc\",\"stock_type\":\"used\"}","search_type":"general-inventory-search","vehicle_array":[{"trim":"Denali","make":"GMC","cat":"truck_fullsize","year":"2021","customer_id":"2453","listing_id":"ae9db7c4-0c3e-40b6-b89b-720f14497f75","certified_preowned":false,"mileage":"27933","sponsored":false,"stock_type":"Used","model":"Sierra 3500","nvi_program":false,"exterior_color":"Hunter Metallic","fuel_type":"Diesel","interior_color":"Dark Walnut/Dark Ash Grey","vin":"1GT49WEY6MF266103","drivetrain":"Four-wheel Drive","dealer_name":"Koons of Tysons Chevrolet GMC","msrp":"0","dealer_zip":"22182","seller_type":"dealership","sponsored_type":"standard","price":"63000","bodystyle":"Truck","cpo_indicator":false,"badges":["good_deal","price_drop_in_cents","hot_car"],"canonical_mmt":"GMC:Sierra 3500:Denali","canonical_mmty":"GMC:Sierra 3500:Denali:2021","cpo_package":null,"photo_count":29,"stock_sub":"","vertical_position":1},{"trim":"Denali","make":"GMC","cat":"truck_fullsize","year":"2021","customer_id":"172435","listing_id":"3d2b401b-c643-4af9-a595-70c33d9744dc","certified_preowned":false,"mileage":"40718","sponsored":false,"stock_type":"Used","model":"Sierra 3500","nvi_program":false,"exterior_color":"White Frost Tricoat","fuel_type":"Diesel","interior_color":"Jet Black","vin":"1GT49WEYXMF234707","drivetrain":"Four-wheel Drive","dealer_name":"Country Chevrolet","msrp":"0","dealer_zip":"20186","seller_type":"dealership","sponsored_type":"standard","price":"63250","bodystyle":"Truck","cpo_indicator":false,"badges":["good_deal"],"canonical_mmt":"GMC:Sierra 3500:Denali","canonical_mmty":"GMC:Sierra 3500:Denali:2021","cpo_package":null,"photo_count":59,"stock_sub":"","vertical_position":2},{"trim":"Denali","make":"GMC","cat":"truck_fullsize","year":"2021","customer_id":"100275","listing_id":"41e9b457-2aae-45ba-8e6c-31aa2772ddb7","certified_preowned":false,"mileage":"72577","sponsored":false,"stock_type":"Used","model":"Sierra 3500","nvi_program":false,"exterior_color":"Ebony Twilight Metallic","fuel_type":"Diesel","interior_color":"Jet Black","vin":"1GT49WEY3MF236637","drivetrain":"Four-wheel Drive","dealer_name":"Country Diesels","msrp":"0","dealer_zip":"20186","seller_type":"dealership","sponsored_type":"standard","price":"61650","bodystyle":"Truck","cpo_indicator":false,"badges":["good_deal","price_drop_in_cents"],"canonical_mmt":"GMC:Sierra 3500:Denali","canonical_mmty":"GMC:Sierra 3500:Denali:2021","cpo_package":null,"photo_count":47,"stock_sub":"","vertical_position":3},{"trim":"Denali","make":"GMC","cat":"truck_fullsize","year":"2019","customer_id":"108331","listing_id":"80686c61-d6c4-47a7-bc47-4041880c5d2f","certified_preowned":false,"mileage":"45105","sponsored":false,"stock_type":"Used","model":"Sierra 3500","nvi_program":false,"exterior_color":"Summit White","fuel_type":"Diesel","interior_color":"Jet Black","vin":"1GT42WEY7KF233760","drivetrain":"Four-wheel Drive","dealer_name":"Kingstowne Motorcars","msrp":null,"dealer_zip":"20110","seller_type":"dealership","sponsored_type":"standard|similar_years","price":"57995","bodystyle":"Truck","cpo_indicator":false,"badges":["good_deal","price_drop_in_cents"],"canonical_mmt":"GMC:Sierra 3500:Denali","canonical_mmty":"GMC:Sierra 3500:Denali:2019","cpo_package":null,"photo_count":27,"stock_sub":"","vertical_position":4},{"trim":"Denali","make":"GMC","cat":"truck_fullsize","year":"2020","customer_id":"5389826","listing_id":"04d791b4-6514-4d79-85d7-f622bf3e6477","certified_preowned":false,"mileage":"161191","sponsored":false,"stock_type":"Used","model":"Sierra 3500","nvi_program":false,"exterior_color":"Quicksilver Metallic","fuel_type":"Diesel","interior_color":"Jet Black","vin":"1GT49WEY7LF215949","drivetrain":"Four-wheel Drive","dealer_name":"Dealer Network Trade","msrp":"0","dealer_zip":"22153","seller_type":"dealership","sponsored_type":"standard|similar_years","price":"45801","bodystyle":"Truck","cpo_indicator":false,"badges":["fair_deal"],"canonical_mmt":"GMC:Sierra 3500:Denali","canonical_mmty":"GMC:Sierra 3500:Denali:2020","cpo_package":null,"photo_count":1,"stock_sub":"","vertical_position":5}],"sponsored_type_eligible":["inventory_ad"]}]