(opens in new window)

Back to Partner Site

Powered by

Skip to vehicle Listings

Cars for SaleGMCSierra 3500AT4

GMC Sierra 3500 AT4 for Sale in Fort Collins, CO

80521

|Filters (3)

Items 1 to 2 of 6.

Location & Delivery

Year

Price & Payments

Min Price

Max Price

Price Rating

Good Price (0)

Great Price (1)

Min Price

Max Price

Price Rating

Good Price (0)

Great Price (1)

Make, Model & Trim

GMC

Models

Sierra 3500

Acadia (138)

Caballero

Canyon (98)

Envoy (1)

Envoy XL

Envoy XUV

G1500

G2500

G3500

Hummer EV (55)

Jimmy (1)

Other GMC Models

S15 Jimmy

S15 Pickup

Safari

Savana 1500 (1)

Savana 2500 (6)

Savana 3500 (14)

Savana 4500

Sierra 1500 (479)

Sierra 2500 (239)

Sierra 3500 (122)

Sierra EV (16)

Sonoma

Suburban (1)

Syclone

Terrain (104)

TopKick C4500

TopKick C5500

Typhoon

Yukon (73)

Yukon XL (65)

Sierra 3500 Trims

AT4

AT4 (18)

Classic SL

Classic SLE

Classic W/T

Denali (25)

Denali Ultimate (12)

Pro (51)

SL

SLE (2)

SLT (13)

W/T (1)

AT4 Package

Any

AT4 Preferred Package

LPO, Hitch Package (8)

AT4 Premium Plus Package (18)

Gooseneck/5th Wheel Prep Package (16)

LPO, Cargo Convenience Package (1)

Driver Alert Package II

Heavy Duty Front Spring/Camper Package

LPO, Black Badging Package (6)

Driver Alert Package I

Technology Package

Gooseneck/5TH Wheel Package (2)

Gooseneck/5TH Wheel Prep Package (16)

Snow Plow Prep/Camper Package (5)

AT4 Premium Package

GMC

Models

Sierra 3500

Acadia (138)

Caballero

Canyon (98)

Envoy (1)

Envoy XL

Envoy XUV

G1500

G2500

G3500

Hummer EV (55)

Jimmy (1)

Other GMC Models

S15 Jimmy

S15 Pickup

Safari

Savana 1500 (1)

Savana 2500 (6)

Savana 3500 (14)

Savana 4500

Sierra 1500 (479)

Sierra 2500 (239)

Sierra 3500 (122)

Sierra EV (16)

Sonoma

Suburban (1)

Syclone

Terrain (104)

TopKick C4500

TopKick C5500

Typhoon

Yukon (73)

Yukon XL (65)

Sierra 3500 Trims

AT4

AT4 (18)

Classic SL

Classic SLE

Classic W/T

Denali (25)

Denali Ultimate (12)

Pro (51)

SL

SLE (2)

SLT (13)

W/T (1)

AT4 Package

Any

AT4 Preferred Package

LPO, Hitch Package (8)

AT4 Premium Plus Package (18)

Gooseneck/5th Wheel Prep Package (16)

LPO, Cargo Convenience Package (1)

Driver Alert Package II

Heavy Duty Front Spring/Camper Package

LPO, Black Badging Package (6)

Driver Alert Package I

Technology Package

Gooseneck/5TH Wheel Package (2)

Gooseneck/5TH Wheel Prep Package (16)

Snow Plow Prep/Camper Package (5)

AT4 Premium Package

Mileage

Condition

New (14)

Used (4)

Manufacturer Certified (1)

Third-Party Certified (0)

Certified Program Details

New (14)

Used (4)

Manufacturer Certified (1)

Third-Party Certified (0)

Certified Program Details

Color

Drive Type

Body Style

Truck Cab Size

Crew Cab (6)

Extended Cab (0)

Regular Cab (0)

Crew Cab (6)

Extended Cab (0)

Regular Cab (0)

Truck Bed Length

Short (0)

Medium (11)

Long (7)

Include unspecified lengths (0)

Short (0)

Medium (11)

Long (7)

Include unspecified lengths (0)

Vehicle History

Features

Fuel Type

Fuel Economy

Transmission

Cylinders

Engine Displacement

Number of Seats

Number of Doors

Purchase Options

Seller Type

18 Matches

Sort By:

Used 2022 GMC Sierra 3500 AT4 w/ AT4 Premium Plus Package

Used

2022 GMC Sierra 3500

AT4
59K mi

54,895

See payment

Great Price

Transwest GMC

50.23 mi. away

Get AutoCheck Vehicle History

Certified 2025 GMC Sierra 3500 AT4 w/ AT4 Premium Plus Package

Certified

2025 GMC Sierra 3500

AT4
9K mi

80,995

See payment

Halladay Motors Inc

40.37 mi. away

Get AutoCheck Vehicle History

Used 2025 GMC Sierra 3500 AT4 w/ AT4 Premium Plus Package

Used

2025 GMC Sierra 3500

AT4
54K mi

68,529

See payment

Prestige Chrysler Dodge Jeep Inc

28.9 mi. away

Get AutoCheck Vehicle History

My Wallet by Kelley Blue Book^®

Find it Fast.

Keep it Affordable.

Monthly Payment

Credit Score

Down Payment

Trade-In Value

Get My Kelley Blue Book® Car Value

$

Based on 4.5% APR for mos.Update Settings

Used 2022 GMC Sierra 3500 AT4 w/ AT4 Premium Plus Package

Used

2022 GMC Sierra 3500

AT4
92K mi

54,995

See payment

Halladay Motors Inc

40.37 mi. away

Get AutoCheck Vehicle History

New 2026 GMC Sierra 3500 AT4 w/ AT4 Premium Plus Package

New

2026 GMC Sierra 3500

AT4
5 mi

87,177

MSRP$92,875

See payment

Incentive

Mike Maroone Chevrolet Buick GMC Longmont

29.35 mi. away

New 2026 GMC Sierra 3500 AT4

Consider New, Similar Payment

2026 GMC Sierra 3500

AT4
0 mi

91,045

Castle Rock Chevrolet GMC

85.58 mi. away

New 2026 GMC Sierra 3500 AT4 w/ AT4 Premium Plus Package

New

2026 GMC Sierra 3500

AT4
10 mi

91,204

MSRP$91,409

See payment

Mike Maroone Buick GMC

39.2 mi. away

Item 1 of 10.

How many passenger seats do you need in your truck?

Do you want

Adaptive Cruise Control?

Automatically adjusts your speed to maintain a safe distance from the car ahead.

Do you want

Backup Camera?

See behind your vehicle while reversing with a live video feed to avoid obstacles.

Do you want

Bluetooth, Hands-Free?

Make and receive calls safely through your car's audio system without touching your phone.

Do you want

Cross Traffic Alert?

Warns you of approaching vehicles from the sides when backing out of a parking spot.

Do you want

Keyless Start?

Start your car with the push of a button while the key fob stays in your pocket or bag.

Do you want

Lane Departure Warning?

Alerts you if your car begins to drift out of its lane without signaling.

Do you want

Premium Audio?

Enjoy high-quality sound with advanced speakers for a better listening experience.

Do you want

Remote Engine Start?

Start your car from a distance to preheat or cool the cabin before you get in.

Do you want

Security System?

Alerts you with a loud alarm if someone tries to break into your vehicle.

New 2026 GMC Sierra 3500 AT4 w/ AT4 Premium Plus Package

New

2026 GMC Sierra 3500

AT4
10 mi

85,742

MSRP$92,505

See payment

Incentive

JOHNSON AUTO PLAZA

46.25 mi. away

Delivery

New 2026 GMC Sierra 3500 AT4 w/ AT4 Premium Plus Package

New

2026 GMC Sierra 3500

AT4
10 mi

85,951

MSRP$92,735

See payment

Incentive

JOHNSON AUTO PLAZA

46.25 mi. away

Delivery

New 2026 GMC Sierra 3500 AT4 w/ AT4 Premium Plus Package

New

2026 GMC Sierra 3500

AT4
10 mi

87,903

MSRP$92,045

See payment

Incentive

JOHNSON AUTO PLAZA

46.25 mi. away

Delivery

Newly Listed

New

2026 GMC Sierra 3500

AT4
15 mi

87,705

MSRP$91,390

See payment

Incentive

JOHNSON AUTO PLAZA

46.25 mi. away

Delivery

New

2026 GMC Sierra 3500

AT4
5 mi

87,903

MSRP$92,045

See payment

Incentive

JOHNSON AUTO PLAZA

46.25 mi. away

Delivery

New

2026 GMC Sierra 3500

AT4
5 mi

88,363

MSRP$92,540

See payment

Incentive

JOHNSON AUTO PLAZA

46.25 mi. away

Delivery

New 2026 GMC Sierra 3500 AT4 w/ AT4 Premium Plus Package

New

2026 GMC Sierra 3500

AT4
5 mi

92,785

MSRP$92,190

See payment

Incentive

Transwest GMC

50.23 mi. away

New 2026 GMC Sierra 3500 AT4 w/ AT4 Premium Plus Package

New

2026 GMC Sierra 3500

AT4
15 mi

90,930

MSRP$91,930

See payment

Incentive

Halladay GMC

40.37 mi. away

New 2026 GMC Sierra 3500 AT4 w/ AT4 Premium Plus Package

New

2026 GMC Sierra 3500

AT4
16 mi

92,519

MSRP$93,519

See payment

Incentive

Halladay GMC

40.37 mi. away

New 2026 GMC Sierra 3500 AT4 w/ AT4 Premium Plus Package

New

2026 GMC Sierra 3500

AT4
16 mi

92,519

MSRP$93,519

See payment

Incentive

Halladay GMC

40.37 mi. away

New 2026 GMC Sierra 3500 AT4 w/ AT4 Premium Plus Package

New

2026 GMC Sierra 3500

AT4
17 mi

92,719

MSRP$93,719

See payment

Incentive

Halladay GMC

40.37 mi. away

New 2026 GMC Sierra 3500 AT4 w/ AT4 Premium Plus Package

New

2026 GMC Sierra 3500

AT4
5 mi

92,420

MSRP$93,420

See payment

Incentive

Halladay GMC

40.37 mi. away

GMC Sierra 3500 AT4 in Nearby Cities

GMC Sierra 3500 AT4 For Sale in Denver
23 for sale
GMC Sierra 3500 AT4 For Sale in Aurora
23 for sale
GMC Sierra 3500 AT4 For Sale in Colorado Springs
8 for sale
GMC Sierra 3500 AT4 For Sale in Pueblo
6 for sale
GMC Sierra 3500 AT4 For Sale in Grand Junction
3 for sale

View All Cities

Partner Links

Demo Program Information
PartnerSite.com
Search New Inventory
Explore All Vehicles
Participating Dealers Locator
Finance Offer details

Autotrader Legal

Visitor Agreement
Privacy Statement
Accessibility Statement
Do Not Sell or Share My Personal Information
Cookie Settings
Your CA Privacy Rights

This site and its services are operated only by Autotrader. Use of the site is subject to the Autotrader Visitor Agreement and Autotrader Privacy Statement.