2026 GMC Sierra 1500 For Sale

Prices starting at: $38,300

View photos, watch videos and get a quote on a new 2026 GMC Sierra 1500 in Collinsville, OK.

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2026 GMC Sierra 1500 Truck

2026 GMC Sierra 1500 Truck Woodland Green

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Learn More About Buying a 2026 GMC Sierra 1500 in Collinsville

Visit Mark Allen Buick GMC for a great deal on a new 2026 GMC Sierra 1500. Our sales team is ready to show you all of the features that you will find in the GMC Sierra 1500 and take you for a test drive in the Collinsville Area. At our GMC dealership you will find competitive prices, a stocked inventory of 2026 GMC Sierra 1500 cars and a helpful sales team. Stop by our car dealership today and take a 2026 GMC for a spin.

2026 GMC Sierra 1500 Truck

2026 GMC Sierra 1500 AT4

MSRP$73,855
Dealer Discount$4,005
Sale Price$69,850
Mark Allen Protection Plan$1,499
Doc Fee$489
Offers$2,250
Final Price$69,588

Engine: 3.0L Duramax^® Turbo Diesel engine, Transmission: Automatic, Exterior Color: Onyx Black, Interior Color: Jet Black with Kalahari accents, Perforated leathe

2026 GMC Sierra 1500 Truck

2026 GMC Sierra 1500 AT4

MSRP$75,900
Dealer Discount$4,213
Sale Price$71,687
Mark Allen Protection Plan$1,499
Doc Fee$489
Final Price$73,675

Engine: 6.2L EcoTec3 V8 engine, Transmission: Automatic, Exterior Color: Volcanic Red Tintcoat, Interior Color: Jet Black with Kalahari accents, Perforated leathe

2026 GMC Sierra 1500 Truck

2026 GMC Sierra 1500 AT4

MSRP$77,320
Dealer Discount$4,317
Sale Price$73,003
Mark Allen Protection Plan$1,499
Doc Fee$489
Final Price$74,991

Engine: 6.2L EcoTec3 V8 engine, Transmission: Automatic, Exterior Color: Volcanic Red Tintcoat, Interior Color: Jet Black with Kalahari accents, Perforated leathe

2026 GMC Sierra 1500 Truck

2026 GMC Sierra 1500 AT4

MSRP$77,170
Dealer Discount$4,303
Sale Price$72,867
Mark Allen Protection Plan$1,499
Doc Fee$489
Offers$2,250
Final Price$72,605

Engine: 6.2L EcoTec3 V8 engine, Transmission: Automatic, Exterior Color: Onyx Black, Interior Color: Jet Black with Kalahari accents, Perforated leathe

2026 GMC Sierra 1500 AT4

MSRP$77,170
Dealer Discount$4,303
Sale Price$72,867
Mark Allen Protection Plan$1,499
Doc Fee$489
Final Price$74,855

Engine: 6.2L EcoTec3 V8 engine, Transmission: Automatic, Exterior Color: Coastal Dune, Interior Color: Jet Black with Kalahari accents, Perforated leathe

2026 GMC Sierra 1500 AT4

MSRP$77,040
Dealer Discount$4,316
Sale Price$72,724
Mark Allen Protection Plan$1,499
Doc Fee$489
Final Price$74,712

Engine: 6.2L EcoTec3 V8 engine, Transmission: Automatic, Exterior Color: Coastal Dune, Interior Color: Jet Black with Kalahari accents, Perforated leathe

2026 GMC Sierra 1500 AT4

MSRP$76,150
Dealer Discount$4,211
Sale Price$71,939
Mark Allen Protection Plan$1,499
Doc Fee$489
Offers$2,250
Final Price$71,677

Engine: 6.2L EcoTec3 V8 engine, Transmission: Automatic, Exterior Color: Onyx Black, Interior Color: Jet Black with Kalahari accents, Perforated leathe

2026 GMC Sierra 1500 Denali

MSRP$80,090
Dealer Discount$4,516
Sale Price$75,574
Mark Allen Protection Plan$1,499
Doc Fee$489
Offers$2,250
Final Price$75,312

Engine: 6.2L EcoTec3 V8 engine, Transmission: Automatic, Exterior Color: Onyx Black, Interior Color: Jet Black, Forge perforated leather seat trim

2026 GMC Sierra 1500 Denali

MSRP$79,445
Dealer Discount$4,434
Sale Price$75,011
Mark Allen Protection Plan$1,499
Doc Fee$489
Final Price$76,999

Engine: 6.2L EcoTec3 V8 engine, Transmission: Automatic, Exterior Color: Sterling Metallic, Interior Color: Jet Black, Forge perforated leather seat trim

2026 GMC Sierra 1500 Denali

MSRP$81,615
Dealer Discount$4,629
Sale Price$76,986
Mark Allen Protection Plan$1,499
Doc Fee$489
Final Price$78,974

Engine: 6.2L EcoTec3 V8 engine, Transmission: Automatic, Exterior Color: Sterling Metallic, Interior Color: Jet Black, Forge perforated leather seat trim

View All New GMC Sierra 1500

2023 GMC Sierra 1500 AT4X

Price$63,460
Doc Fee$489
Final Price$63,949

Engine: 6.2L V-8 cyl, Transmission: Automatic, Mileage: 20,079 miles, Exterior Color: Sterling, Interior Color: Obsidian Rush

2024 GMC Sierra 1500 Denali Ultimate

Price$61,930
Doc Fee$489
Final Price$62,419

Engine: 6.2L V-8 cyl, Transmission: Automatic, Mileage: 38,070 miles, Exterior Color: Sterling, Interior Color: Alpine Umber

2025 GMC Sierra 1500 Pro

Price$34,620
Doc Fee$489
Final Price$35,109

Engine: 2.7L I-4 cyl, Transmission: Automatic, Mileage: 25,278 miles, Exterior Color: Thunderstorm Gray, Interior Color: Jet Black, Cloth seat trim

2020 GMC Sierra 1500 SLT

Price$31,540
Doc Fee$489
Final Price$32,029

Engine: 5.3L V-8 cyl, Transmission: Automatic, Mileage: 107,592 miles, Exterior Color: White Frost Tricoat, Interior Color: DARK WALNUT/SLATE, PERFORATED LEATHER-APPOINTED FR

2022 GMC Sierra 1500 Elevation w/3SB

Price$36,610
Doc Fee$489
Final Price$37,099

Engine: 5.3L V-8 cyl, Transmission: Automatic, Mileage: 86,919 miles, Exterior Color: Summit White, Interior Color: Jet Black, Cloth seat trim

2021 GMC Sierra 1500 SLT

Price$20,870
Doc Fee$489
Final Price$21,359

Engine: 5.3L V-8 cyl, Transmission: Automatic, Mileage: 225,820 miles, Exterior Color: Satin Steel, Interior Color: JET BLACK, PERFORATED LEATHER-APPOINTED FRONT OUTB

View All Pre-Owned GMC Sierra 1500

GMC (1)

Sierra 1500 Truck (10)

2026

Manufacturer Offer

For Well-Qualified Buyers When Financed w/ GM Financial

0.0% APR for 36 months
2.9% APR for 48 months
5.9% APR for 60 months
5.9% APR for 72 months

Applies to this new 2026 GMC Sierra 1500

Offer only valid Apr 01, 2026 through Apr 30, 2026

For Well-Qualified Buyers When Financed w/ GM Financial

Disclaimer(s)

0.0% APR for 36 months for well-qualified buyers when financed w/GM Financial. Monthly payment is $27.78 for every $1000 you finance. Average example down payment is 10.0%. Not available with leases and some other offers. Must take new retail delivery by 04/30/2026. Truth in Lending Act Disclosure: Down payment will vary with APR and credit. For example, 0.0% APR with $2,500 down payment provides for 36 monthly payments of $27.78 per $1000 financed for qualified buyers. 2.9% APR for a term of 48 months corresponds to a monthly cost of $22.09 per $1000 financed. 5.9% APR for a term of 84 months corresponds to a monthly cost of $14.56 per $1000 financed. 5.9% APR for a term of 72 months corresponds to a monthly cost of $16.53 per $1000 financed. 5.9% APR for a term of 60 months corresponds to a monthly cost of $19.29 per $1000 financed. The rates described are for estimation purposes only; you may not be able to finance at this rate. (See Trims)
See State Disclaimer *

Manufacturer Offer

Purchase Allowance

$1,750 Cash

Applies to this new 2026 GMC Sierra 1500

Offer only valid Apr 01, 2026 through Apr 30, 2026

Disclaimer(s)

Not available with special financing, lease and some other offers. Must take new retail delivery by 04/30/2026. (See Trims)
See State Disclaimer *

Manufacturer Offer

Bonus Cash

$1,750 Cash

Applies to this new 2026 GMC Sierra 1500

Offer only valid Apr 01, 2026 through Apr 30, 2026

Disclaimer(s)

Not available with some other offers. Must take new retail delivery by 04/30/2026. (See Trims)
See State Disclaimer *

Manufacturer Offer

Bonus Cash

$1,500 Cash

Applies to this new 2026 GMC Sierra 1500

Offer only valid Apr 01, 2026 through Apr 30, 2026

Disclaimer(s)

Not available with some other offers. Must take new retail delivery by 04/30/2026. (See Trims)
See State Disclaimer *

Manufacturer Offer

Bonus Cash

$500 Cash

Applies to this new 2026 GMC Sierra 1500

Offer only valid Apr 01, 2026 through Apr 30, 2026

Disclaimer(s)

Not available with some other offers. Must take new retail delivery by 04/30/2026. (See Trims)
See State Disclaimer *

Manufacturer Offer

Trade Assistance

$3,500 Cash

Applies to this new 2026 GMC Sierra 1500

Offer only valid Apr 01, 2026 through Apr 30, 2026

Disclaimer(s)

Must trade in a 2012 model year or newer vehicle. Not available with lease and some other offers. Must take new retail delivery by 04/30/2026. (See Trims)
See State Disclaimer *

Manufacturer Offer

Trade Assistance

$3,000 Cash

Applies to this new 2026 GMC Sierra 1500

Offer only valid Apr 01, 2026 through Apr 30, 2026

Disclaimer(s)

Must trade in a 2012 model year or newer vehicle. Not available with lease and some other offers. Must take new retail delivery by 04/30/2026. (See Trims)
See State Disclaimer *

Manufacturer Offer

Trade Assistance

$2,500 Cash

Applies to this new 2026 GMC Sierra 1500

Offer only valid Apr 01, 2026 through Apr 30, 2026

Disclaimer(s)

Must trade in a 2012 model year or newer vehicle. Not available with lease and some other offers. Must take new retail delivery by 04/30/2026. (See Trims)
See State Disclaimer *

Manufacturer Offer

GM First Responder Offer

$500 Offer

Applies to this new 2026 GMC Sierra 1500

Offer only valid Jan 03, 2026 through Jan 04, 2027

Disclaimer(s)

Must be a current Firefighter, Police, EMT/Paramedic, or 911 Dispatcher. First Responders employed by federal, state or municipal governments may be subject to restrictions that limit their ability to accept this offer. Accordingly, this offer is void unless permitted by applicable federal, state and municipal laws, regulations, rules, ordinances, policies, codes of conduct, and other directives or standards regarding ethics and gift acceptance by the applicable federal, state or municipal employees. By accepting this offer, you verify that doing so complies with all laws, regulations, policies or other restrictions regarding ethics or gift acceptance that apply to you. Eligible participants are able to sponsor their spouse. At participating dealers only. Visit gmfirstresponderappreciation.com for program eligibility details and for a list of eligible vehicles. Not available with some other offers. Must provide authorization number to participating dealer prior to or at time of vehicle delivery to receive offer. Must take new retail delivery by 01/04/2027. (See Trims)
See State Disclaimer *

Manufacturer Offer

GM Military Offer

$500 Offer

Applies to this new 2026 GMC Sierra 1500

Offer only valid Jan 03, 2026 through Jan 04, 2027

Disclaimer(s)

Eligible military personnel includes Active Duty members, Reservists, National Guard members, Veterans and Retirees of the U.S. Army, Navy, Air Force, Marine Corps and Coast Guard. Eligible participants are able to sponsor their spouse. At participating dealers only. Visit gmmilitaryappreciation.com for program eligibility details and for a list of eligible vehicles. Not available with some other offers. Must provide authorization number to participating dealer prior to or at time of vehicle delivery to receive offer. Must take new retail delivery by 01/04/2027. (See Trims)
See State Disclaimer *

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Disclaimer: The Manufacturer’s Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.

¹Dealer Discount applied to everyone