2025 GMC Sierra 3500

new

Automatic

Summit White exterior

$67,289

Johnson Auto Plaza, Inc.

3.3

2025 GMC Sierra 3500 | new

$67,289

MSRP: $69,440

summit white exterior, black interior

Automatic

Four-wheel Drive

Johnson Auto Plaza, Inc.

3.3

Contact Seller

View Details

2025 GMC Sierra 3500

new

Automatic

Summit White exterior

$91,049

Johnson Auto Plaza, Inc.

3.3

2025 GMC Sierra 3500 | new

$91,049

MSRP: $90,450

summit white exterior, jet black interior

Automatic

Four-wheel Drive

Johnson Auto Plaza, Inc.

3.3

Contact Seller

View Details

2025 GMC Sierra 3500

new

Automatic

Sterling exterior

$92,554

Johnson Auto Plaza, Inc.

3.3

2025 GMC Sierra 3500 | new

$92,554

MSRP: $92,955

sterling exterior, jet black interior

Automatic

Four-wheel Drive

Johnson Auto Plaza, Inc.

3.3

Contact Seller

View Details

2025 GMC Sierra 3500

new

Automatic

White Frost Tri-Coat exterior

$93,154

Johnson Auto Plaza, Inc.

3.3

2025 GMC Sierra 3500 | new

$93,154

MSRP: $93,555

white frost tri-coat exterior, atmosphere interior

Automatic

Four-wheel Drive

Johnson Auto Plaza, Inc.

3.3

Contact Seller

View Details

2025 GMC Sierra 3500

new

Automatic

Sterling exterior

$94,489

Johnson Auto Plaza, Inc.

3.3

2025 GMC Sierra 3500 | new

$94,489

MSRP: $94,890

sterling exterior, jet black interior

Automatic

Four-wheel Drive

Johnson Auto Plaza, Inc.

3.3

Contact Seller

View Details

2025 GMC Sierra 3500

new

Automatic

White Frost Tri-Coat exterior

$95,089

Johnson Auto Plaza, Inc.

3.3

2025 GMC Sierra 3500 | new

$95,089

MSRP: $95,490

white frost tri-coat exterior, jet black interior

Automatic

Four-wheel Drive

Johnson Auto Plaza, Inc.

3.3

Contact Seller

View Details

2025 GMC Sierra 3500

new

Automatic

White Frost Tri-Coat exterior

$95,089

Johnson Auto Plaza, Inc.

3.3

2025 GMC Sierra 3500 | new

$95,089

MSRP: $95,490

white frost tri-coat exterior, atmosphere interior

Automatic

Four-wheel Drive

Johnson Auto Plaza, Inc.

3.3

Contact Seller

View Details

2025 GMC Sierra 3500

new

Automatic

Metallic exterior

$101,309

Johnson Auto Plaza, Inc.

3.3

2025 GMC Sierra 3500 | new

$101,309

MSRP: $100,710

metallic exterior, alpine umber interior

Automatic

Four-wheel Drive

Johnson Auto Plaza, Inc.

3.3

Contact Seller

View Details

2025 GMC Sierra 3500

new

Automatic

White Frost Tri-Coat exterior

$102,479

Johnson Auto Plaza, Inc.

3.3

2025 GMC Sierra 3500 | new

$102,479

MSRP: $101,880

white frost tri-coat exterior, alpine umber interior

Automatic

Four-wheel Drive

Johnson Auto Plaza, Inc.

3.3

Contact Seller

View Details

2025 GMC Sierra 3500

new

Automatic

White Frost Tri-Coat exterior

$102,479

Johnson Auto Plaza, Inc.

3.3

2025 GMC Sierra 3500 | new

$102,479

MSRP: $101,880

white frost tri-coat exterior, alpine umber interior

Automatic

Four-wheel Drive

Johnson Auto Plaza, Inc.

3.3

Contact Seller

View Details

2025 GMC Sierra 3500

new

Automatic

Onyx Black exterior

$105,014

Johnson Auto Plaza, Inc.

3.3

2025 GMC Sierra 3500 | new

$105,014

MSRP: $104,415

onyx black exterior, alpine umber interior

Automatic

Four-wheel Drive

Johnson Auto Plaza, Inc.

3.3

Contact Seller

View Details

2018 GMC Sierra 3500

used

Automatic

Silver exterior

$25,000

Lakeside Auto Brokers

N/A

2018 GMC Sierra 3500 | used

$25,000

silver exterior, black interior

Automatic

Four-wheel Drive

Lakeside Auto Brokers

N/A

Contact Seller

View Details

2015 GMC Sierra 3500

used

Automatic

White exterior

$26,988

Country Truck & Auto

N/A

2015 GMC Sierra 3500 | used

$26,988

white exterior, black interior

Automatic

Rear-wheel Drive

Country Truck & Auto

N/A

Contact Seller

View Details

2012 GMC Sierra 3500

used

Automatic

N/A exterior

$45,950

Sterling Auto Sales

N/A

2012 GMC Sierra 3500 | used

$45,950

n/a exterior, n/a interior

Automatic

Four-wheel Drive

Sterling Auto Sales

N/A

Contact Seller

View Details

2011 GMC Sierra 3500

used

Automatic

Summit White exterior

$45,999

Red's Auto & Truck

N/A

2011 GMC Sierra 3500 | used

$45,999

summit white exterior, cocoa/light cashmere interior

Automatic

Four-wheel Drive

Red's Auto & Truck

N/A

Contact Seller

View Details

2020 GMC Sierra 3500

used

Automatic

Summit White exterior

$50,485

Flower Motor Company

N/A

2020 GMC Sierra 3500 | used

$50,485

summit white exterior, jet black interior

Automatic

Four-wheel Drive

Flower Motor Company

N/A

Contact Seller

View Details

2019 GMC Sierra 3500

used

Automatic

White exterior

$51,998

CarMax Loveland

N/A

2019 GMC Sierra 3500 | used

$51,998

white exterior, black interior

Automatic

Four-wheel Drive

CarMax Loveland

N/A

Contact Seller

View Details

2021 GMC Sierra 3500

used

Automatic

Summit White exterior

$53,003

Loveland Buick GMC

N/A

2021 GMC Sierra 3500 | used

$53,003

summit white exterior, jet black interior

Automatic

Four-wheel Drive

Loveland Buick GMC

N/A

Contact Seller

View Details

2020 GMC Sierra 3500

used

Automatic

Carbon Black Metallic exterior

$54,300

Lakeside Auto Brokers

N/A

2020 GMC Sierra 3500 | used

$54,300

carbon black metallic exterior, jet black interior

Automatic

Four-wheel Drive

Lakeside Auto Brokers

N/A

Contact Seller

View Details

2025 GMC Sierra 3500

new

Automatic

Summit White exterior

$56,577

Ferguson Buick GMC

N/A

2025 GMC Sierra 3500 | new

$56,577

MSRP: $64,315

summit white exterior, jet black interior

Automatic

Four-wheel Drive

Ferguson Buick GMC

N/A

Contact Seller

View Details

2025 GMC Sierra 3500

new

Automatic

Summit White exterior

$58,238

Loveland Buick GMC

N/A

2025 GMC Sierra 3500 | new

$58,238

MSRP: $65,955

summit white exterior, black interior

Automatic

Four-wheel Drive

Loveland Buick GMC

N/A

Contact Seller

View Details

2022 GMC Sierra 3500

used

Automatic

White Frost Tricoat exterior

$61,999

Red's Auto & Truck

N/A

2022 GMC Sierra 3500 | used

$61,999

white frost tricoat exterior, jet black interior

Automatic

Four-wheel Drive

Red's Auto & Truck

N/A

Contact Seller

View Details

2023 GMC Sierra 3500

used

Automatic

Summit White exterior

$63,976

Glenwood Springs Ford

N/A

2023 GMC Sierra 3500 | used

$63,976

summit white exterior, jet black with kalahari accents interior

Automatic

Four-wheel Drive

Glenwood Springs Ford

N/A

Contact Seller

View Details

2022 GMC Sierra 3500

used

Automatic

Summit White exterior

$64,187

Flower Motor Company

N/A

2022 GMC Sierra 3500 | used

$64,187

summit white exterior, jet black interior

Automatic

Four-wheel Drive

Flower Motor Company

N/A

Contact Seller

View Details

2025 GMC Sierra 3500

new

Automatic

Summit White exterior

$64,379

Shortline Buick GMC

N/A

2025 GMC Sierra 3500 | new

$64,379

MSRP: $68,540

summit white exterior, black interior

Automatic

Four-wheel Drive

Shortline Buick GMC

N/A

Contact Seller

View Details

2025 GMC Sierra 3500

new

Automatic

Summit White exterior

$66,089

Shortline Buick GMC

N/A

2025 GMC Sierra 3500 | new

$66,089

MSRP: $70,250

summit white exterior, jet black interior

Automatic

Four-wheel Drive

Shortline Buick GMC

N/A

Contact Seller

View Details

2025 GMC Sierra 3500

new

Automatic

Sterling Metallic exterior

$66,584

Shortline Buick GMC

N/A

2025 GMC Sierra 3500 | new

$66,584

MSRP: $70,745

sterling metallic exterior, jet black interior

Automatic

Four-wheel Drive

Shortline Buick GMC

N/A

Contact Seller

View Details

2023 GMC Sierra 3500

used

Automatic

Summit White exterior

$70,272

Glenwood Springs Ford

N/A

2023 GMC Sierra 3500 | used

$70,272

summit white exterior, dark walnut/dark ash grey interior

Automatic

Four-wheel Drive

Glenwood Springs Ford

N/A

Contact Seller

View Details

2023 GMC Sierra 3500

used

Automatic

Ebony Twilight Metallic exterior

$70,666

Loveland Buick GMC

N/A

2023 GMC Sierra 3500 | used

$70,666

ebony twilight metallic exterior, dark walnut/dark ash grey interior

Automatic

Four-wheel Drive

Loveland Buick GMC

N/A

Contact Seller

View Details

2024 GMC Sierra 3500

used

Automatic

Summit White exterior

$71,287

Auto Mart USA

N/A

2024 GMC Sierra 3500 | used

$71,287

summit white exterior, jet black interior

Automatic

Four-wheel Drive

Auto Mart USA

N/A

Contact Seller

View Details

GMC Sierra 3500 vehicles for Sale in Colorado

136 Results

2025 GMC Sierra 3500 | new

2025 GMC Sierra 3500 | new

2025 GMC Sierra 3500 | new

2025 GMC Sierra 3500 | new

2025 GMC Sierra 3500 | new

2025 GMC Sierra 3500 | new

2025 GMC Sierra 3500 | new

2025 GMC Sierra 3500 | new

2025 GMC Sierra 3500 | new

2025 GMC Sierra 3500 | new

2025 GMC Sierra 3500 | new

2018 GMC Sierra 3500 | used

2015 GMC Sierra 3500 | used

2012 GMC Sierra 3500 | used

2011 GMC Sierra 3500 | used

2020 GMC Sierra 3500 | used

2019 GMC Sierra 3500 | used

2021 GMC Sierra 3500 | used

2020 GMC Sierra 3500 | used

2025 GMC Sierra 3500 | new

2025 GMC Sierra 3500 | new

2022 GMC Sierra 3500 | used

2023 GMC Sierra 3500 | used

2022 GMC Sierra 3500 | used

2025 GMC Sierra 3500 | new

2025 GMC Sierra 3500 | new

2025 GMC Sierra 3500 | new

2023 GMC Sierra 3500 | used

2023 GMC Sierra 3500 | used

2024 GMC Sierra 3500 | used