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Used GMC Sierra 3500 trucks for sale near Holly Hills, CO under $1,000,000

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41 matches 30 miles from 80222
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Est. $400 /mo*
Down Payment
$0
Net trade-in value
$0
Months
72
APR
7.0%
Sales tax
0.0%

*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.

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Used

2021 GMC Sierra 3500 SLT

54,271 mi.
$55,998
Est. $1,042/mo*
Castle Rock Chevrolet GMC
(645 reviews)
Castle Rock, CO (23 mi.)
Call Check availability Check availability

Vehicle information

Ext. color: Summit White
Int. color: Dark Walnut
Drivetrain: Four-wheel Drive
Fuel type: Diesel
Transmission: 10-Speed Automatic
Engine: 6.6L V8 32V DDI OHV Turbo Diesel
Stock #: MF112218A
VIN: 1GT49UEY4MF112218

Features

Convenience: Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Remote Start
Entertainment: Apple CarPlay®, Bluetooth®, Premium Sound System, Satellite Radio, USB Port
Exterior: Tow Hitch
Safety: Backup Camera, Brake Assist, Lane Departure Warning, Rear Cross Traffic Alert, Stability Control
Seating: Leather Seats, Memory Seat

Reviews

Castle Rock Chevrolet GMC review

Great Service!

December 6, 2025
By Ryan from Castle Rock, Colorado

Great Service! Dominic and Mike are very helpful and are happy to answer all my questions.

2021 GMC Sierra 3500 SLT review

Truck is a Solid vehicle overall.

April 5, 2021
By Review from Tennessee
Owns this car

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.

There are additional matching cars outside your search area.

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2025 GMC Sierra 3500 AT4
2025 GMC Sierra 3500 AT4
2025 GMC Sierra 3500 AT4
2025 GMC Sierra 3500 AT4
2025 GMC Sierra 3500 AT4
2025 GMC Sierra 3500 AT4 View all 8 photos

Used

2025 GMC Sierra 3500 AT4

54,778 mi.
$76,631
Est. $1,426/mo*
Prestige Chrysler Dodge Jeep RAM
Longmont, CO (35 mi.)

Vehicle information

Ext. color: Volcanic Red
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Diesel
Transmission: 10-Speed Automatic
Engine: 6.6L V8 32V DDI OHV Turbo Diesel
Stock #: 45398A
VIN: 1GT4UVEY4SF107666

Features

Convenience: Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Remote Start
Entertainment: Bluetooth®, Premium Sound System, Satellite Radio, USB Port
Exterior: Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety: Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Stability Control
Seating: Leather Seats, Memory Seat
2024 GMC Sierra 3500 Denali
2024 GMC Sierra 3500 Denali
2024 GMC Sierra 3500 Denali
2024 GMC Sierra 3500 Denali
2024 GMC Sierra 3500 Denali
2024 GMC Sierra 3500 Denali View all 34 photos

Used

2024 GMC Sierra 3500 Denali

30,871 mi.
$75,798 $2,800 price drop
Est. $1,411/mo*
Mike Maroone Chevrolet GMC
Longmont, CO (35 mi.)

Vehicle information

Ext. color: White Frost Tricoat
Int. color: Alpine Umber
Drivetrain: Four-wheel Drive
Fuel type: Diesel
Transmission: Automatic
Engine: Duramax 6.6L V-8 diesel direct injection, intercooled turbo, die
Stock #: 346867
VIN: 1GT49YEY7RF346867

Features

Convenience: Adaptive Cruise Control, 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, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating: Leather Seats, Memory Seat
2018 GMC Sierra 3500 Denali
2018 GMC Sierra 3500 Denali
2018 GMC Sierra 3500 Denali
2018 GMC Sierra 3500 Denali
2018 GMC Sierra 3500 Denali
2018 GMC Sierra 3500 Denali View all 48 photos

Used

2018 GMC Sierra 3500 Denali

76,465 mi.
$52,999
Est. $986/mo*
Victory Motors of Colorado
Longmont, CO (37 mi.)

Vehicle information

Ext. color: Onyx Black
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Diesel
Transmission: 6-speed automatic
Engine: Duramax 6.6L V-8 diesel direct injection, intercooled turbo, die
Stock #: H26049
VIN: 1GT42YEY2JF176734

Features

Convenience: Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Navigation System, Remote Start
Entertainment: Android Auto®, Apple CarPlay®, Bluetooth®, CD Player, USB Port, WiFi Hotspot
Exterior: Alloy Wheels, Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Stability Control
Seating: Leather Seats, Memory Seat
2020 GMC Sierra 3500 Denali
2020 GMC Sierra 3500 Denali
2020 GMC Sierra 3500 Denali
2020 GMC Sierra 3500 Denali
2020 GMC Sierra 3500 Denali
2020 GMC Sierra 3500 Denali View all 18 photos

Used

2020 GMC Sierra 3500 Denali

100,312 mi.
$51,995 $1,000 price drop
Est. $968/mo*
Booth Motors
Longmont, CO (35 mi.)
Call Check availability Check availability

Vehicle information

Ext. color: Off white
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 #: 17232
VIN: 1GT49WEY3LF173005

Features

Convenience: Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, 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
2015 GMC Sierra 3500 Base
2015 GMC Sierra 3500 Base
2015 GMC Sierra 3500 Base
2015 GMC Sierra 3500 Base
2015 GMC Sierra 3500 Base
2015 GMC Sierra 3500 Base View all 44 photos

Used

2015 GMC Sierra 3500 Base

106,095 mi.
$23,295 $693 price drop
Est. $433/mo*
Country Truck & Auto
Fort Lupton, CO (33 mi.)
Call Check availability Check availability

Vehicle information

Ext. color: White
Int. color: Black
Drivetrain: Rear-wheel Drive
Fuel type: Gasoline
Transmission: Automatic
Engine: Vortec 6L V-8 variable valve control, regular unleaded, engine w
Stock #: CSL15
VIN: 1GD311CGXFZ550363

Features

Entertainment: USB Port
Exterior: Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Brake Assist, Stability Control
2018 GMC Sierra 3500 Denali
2018 GMC Sierra 3500 Denali
2018 GMC Sierra 3500 Denali
2018 GMC Sierra 3500 Denali
2018 GMC Sierra 3500 Denali
2018 GMC Sierra 3500 Denali View all 47 photos

Used

2018 GMC Sierra 3500 Denali

151,096 mi.
$41,988
Est. $781/mo*
Country Truck & Auto
Fort Lupton, CO (33 mi.)
Call Check availability Check availability

Vehicle information

Ext. color: Gray
Drivetrain: Four-wheel Drive
Fuel type: Diesel
Transmission: Automatic
Engine: Duramax 6.6L V-8 diesel direct injection, intercooled turbo, die
Stock #: 7496
VIN: 1GT42YEY6JF192371

Features

Convenience: Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Navigation System, Remote Start
Entertainment: Android Auto®, Apple CarPlay®, Bluetooth®, CD Player, Satellite Radio, USB Port, WiFi Hotspot
Exterior: Alloy Wheels, Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Stability Control
Seating: Leather Seats, Memory Seat

*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.

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