Prices starting at: $38,300

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Learn More About Buying a 2025 GMC Sierra 1500 in Collinsville

Visit Mark Allen Buick GMC for a great deal on a new 2025 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 2025 GMC Sierra 1500 cars and a helpful sales team. Stop by our car dealership today and take a 2025 GMC for a spin.

2024 GMC Sierra 1500 Truck

2024 GMC Sierra 1500 Denali

  • MSRP$81,725
  • Dealer Discount$9,055
  • Sale Price$72,670
  • Mark Allen Price$72,670
  • Offers$3,250
  • Final Price$69,420
  • Conditional Offers$1,000
Engine: 6.2L EcoTec3 V8 engine, Transmission: Automatic, Exterior Color: Onyx Black, Interior Color: Jet Black, Forge perforated leather seat trim
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2024 GMC Sierra 1500 Truck

2024 GMC Sierra 1500 Denali

  • MSRP$82,720
  • Dealer Discount$8,740
  • Sale Price$73,980
  • Mark Allen Price$73,980
  • Offers$3,250
  • Final Price$70,730
  • Conditional Offers$1,000
Engine: 6.2L EcoTec3 V8 engine, Transmission: Automatic, Exterior Color: Onyx Black, Interior Color: Atmosphere/Brownstone, Forge perforated leather se
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2025 GMC Sierra 1500 Truck

2025 GMC Sierra 1500 AT4

  • MSRP$74,455
  • Dealer Discount$5,956
  • Sale Price$68,499
  • Mark Allen Price$68,499
  • Offers$3,250
  • Final Price$65,249
  • Conditional Offers$1,000
Engine: 6.2L EcoTec3 V8 engine, Transmission: Automatic, Exterior Color: Summit White, Interior Color: Jet Black with Kalahari accents, Perforated leathe
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2025 GMC Sierra 1500 Truck

2025 GMC Sierra 1500 AT4

  • MSRP$72,205
  • Dealer Discount$3,578
  • Sale Price$68,627
  • Upfits$34,594
  • Mark Allen Price$103,221
  • Offers$3,250
  • Final Price$99,971
  • Conditional Offers$1,000
Engine: 3.0L Duramax® Turbo Diesel engine, Transmission: Automatic, Exterior Color: Volcanic Red Tintcoat, Interior Color: Jet Black with Kalahari accents, Perforated leathe
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2025 GMC Sierra 1500 Truck

2025 GMC Sierra 1500 Denali

  • MSRP$78,145
  • Dealer Discount$6,252
  • Sale Price$71,893
  • Mark Allen Price$71,893
  • Offers$3,250
  • Final Price$68,643
  • Conditional Offers$1,000
Engine: 6.2L EcoTec3 V8 engine, Transmission: Automatic, Exterior Color: Sterling Metallic, Interior Color: Jet Black, Forge perforated leather seat trim
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2025 GMC Sierra 1500 Truck

2025 GMC Sierra 1500 Elevation

  • MSRP$54,790
  • Dealer Discount$3,114
  • Sale Price$51,676
  • Mark Allen Price$51,676
  • Offers$4,500
  • Final Price$47,176
  • Conditional Offers$1,000
Engine: TurboMax™ engine, Transmission: Automatic, Exterior Color: Cardinal Red, Interior Color: Jet Black, Cloth seat trim
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2025 GMC Sierra 1500 Truck

2025 GMC Sierra 1500 Elevation

  • MSRP$57,540
  • Dealer Discount$4,160
  • Sale Price$53,380
  • Mark Allen Price$53,380
  • Offers$4,500
  • Final Price$48,880
  • Conditional Offers$1,000
Engine: TurboMax™ engine, Transmission: Automatic, Exterior Color: Cardinal Red, Interior Color: Jet Black, Cloth seat trim
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2025 GMC Sierra 1500 Truck

2025 GMC Sierra 1500 Pro

  • MSRP$49,885
  • Dealer Discount$3,639
  • Sale Price$46,246
  • Mark Allen Price$46,246
  • Offers$4,500
  • Final Price$41,746
  • Conditional Offers$1,000
Engine: TurboMax™ engine, Transmission: Automatic, Exterior Color: Sterling Metallic, Interior Color: Jet Black, Cloth seat trim
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2025 GMC Sierra 1500 Truck

2025 GMC Sierra 1500 Pro

  • MSRP$49,885
  • Dealer Discount$3,639
  • Sale Price$46,246
  • Mark Allen Price$46,246
  • Offers$4,500
  • Final Price$41,746
  • Conditional Offers$1,000
Engine: TurboMax™ engine, Transmission: Automatic, Exterior Color: Onyx Black, Interior Color: Jet Black, Cloth seat trim
View Details
2025 GMC Sierra 1500 Truck

2025 GMC Sierra 1500 Pro

  • MSRP$49,885
  • Dealer Discount$2,004
  • Sale Price$47,881
  • Mark Allen Price$47,881
  • Offers$4,500
  • Final Price$43,381
  • Conditional Offers$1,000
Engine: TurboMax™ engine, Transmission: Automatic, Exterior Color: Onyx Black, Interior Color: Jet Black, Cloth seat trim
View Details
View All New GMC Sierra 1500
2024 GMC Sierra 1500 Truck Crew Cab

2024 GMC Sierra 1500 Denali

  • Price$61,870
Engine: 6.2L V-8 cyl, Transmission: Automatic, Mileage: 588 miles, Exterior Color: Onyx Black, Interior Color: Atmosphere/Brownstone, Forge perforated leather se
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2023 GMC Sierra 1500 Truck Crew Cab

2023 GMC Sierra 1500 AT4

  • Price$55,870
Engine: 3.0L I-6 cyl, Transmission: Automatic, Mileage: 23,980 miles, Exterior Color: Exterior, Sand Dune Met-1 (661g), Interior Color: Jet Black
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2023 GMC Sierra 1500 Truck Crew Cab

2023 GMC Sierra 1500 AT4X

  • Price$53,870
Engine: 6.2L V-8 cyl, Transmission: Automatic, Mileage: 57,602 miles, Exterior Color: Sterling, Interior Color: Obsidian Rush
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2023 GMC Sierra 1500 Truck Crew Cab

2023 GMC Sierra 1500 Denali

  • Price$49,920
Engine: 6.2L V-8 cyl, Transmission: Automatic, Mileage: 77,208 miles, Exterior Color: Volcanic Red Tintcoat, Interior Color: Atmosphere/Brownstone, Forge perforated leather se
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2021 GMC Sierra 1500 Truck Crew Cab

2021 GMC Sierra 1500 Denali

  • Price$41,870
Engine: 5.3L V-8 cyl, Transmission: Automatic, Mileage: 52,506 miles, Exterior Color: Hunter, Interior Color: Jet Black, Forge perforated leather seat trim
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2024 GMC Sierra 1500 Truck Crew Cab

2024 GMC Sierra 1500 Denali Ultimate

  • Price$64,870
Engine: 6.2L V-8 cyl, Transmission: Automatic, Mileage: 20,233 miles, Exterior Color: Sterling, Interior Color: Alpine Umber
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2023 GMC Sierra 1500 Truck Crew Cab

2023 GMC Sierra 1500 Denali Ultimate

  • Price$61,367
Engine: 6.2L V-8 cyl, Transmission: Automatic, Mileage: 34,097 miles, Exterior Color: Exterior, Sharkskin Met-1 (130h), Interior Color: Alpine Umber
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2022 GMC Sierra 1500 Truck Crew Cab

2022 GMC Sierra 1500 SLT

  • Price$39,460
Engine: 5.3L V-8 cyl, Transmission: Automatic, Mileage: 63,441 miles, Exterior Color: White Frost Tricoat, Interior Color: Dark Walnut/Slate, Perforated leather-appointed fr
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2023 GMC Sierra 1500 Truck Crew Cab

2023 GMC Sierra 1500 Denali

  • Price$54,520
Engine: 6.2L V-8 cyl, Transmission: Automatic, Mileage: 36,063 miles, Exterior Color: Onyx Black, Interior Color: Atmosphere/Brownstone, Forge perforated leather se
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2020 GMC Sierra 1500 Truck Crew Cab

2020 GMC Sierra 1500 Denali

  • Price$39,780
Engine: 6.2L V-8 cyl, Transmission: Automatic, Mileage: 62,056 miles, Exterior Color: Dark Sky, Interior Color: Jet Black, Forge perforated leather-appointed seat
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View All Pre-Owned GMC Sierra 1500

GMC (1)

Sierra 1500 Truck (17)

2026

Manufacturer Offer

No Monthly Payments for 120 Days for Well-Qualified Buyers When Financed w/ GM Financial

  1. 0.9% APR for 36 months
  2. 2.9% APR for 48 months
  3. 5.9% APR for 60 months
  4. 5.9% APR for 72 months
  • Applies to this new 2026 GMC Sierra 1500

No Monthly Payments for 120 Days for Well-Qualified Buyers When Financed w/ GM Financial

Disclaimer(s)
  • Deferred monthly payments for 120 days. Finance charges accrue from date of financing. Must finance with GM Financial. Down payment required at signing, if applicable. Offer not available in PA. Some customers may not qualify. Not available with lease and some other offers. 0.9% APR for 36 months for well-qualified buyers when financed w/GM Financial. Monthly payment is $28.16 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 09/30/2025. Truth in Lending Act Disclosure: Down payment will vary with APR and credit. For example, 0.9% APR with $2,500 down payment provides for 36 monthly payments of $28.16 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. $1,750 Cash
  • Applies to this new 2026 GMC Sierra 1500

Disclaimer(s)
  • Not available with special financing, lease and some other offers. Must take new retail delivery by 09/30/2025. (See Trims)
  • See State Disclaimer *
Manufacturer Offer

GM First Responder Offer

  1. $500 Offer
  • Applies to this new 2026 GMC Sierra 1500

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 01/02/2026. (See Trims)
  • See State Disclaimer *
Manufacturer Offer

GM Military Offer

  1. $500 Offer
  • Applies to this new 2026 GMC Sierra 1500

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 01/02/2026. (See Trims)
  • See State Disclaimer *

2025

Manufacturer Offer

No Monthly Payments for 120 Days for Well-Qualified Buyers When Financed w/ GM Financial

  1. 0.0% APR for 36 months
  2. 2.9% APR for 48 months
  3. 5.9% APR for 60 months
  4. 5.9% APR for 72 months
  • Applies to this new 2025 GMC Sierra 1500

No Monthly Payments for 120 Days for Well-Qualified Buyers When Financed w/ GM Financial

Disclaimer(s)
  • Deferred monthly payments for 120 days. Finance charges accrue from date of financing. Must finance with GM Financial. Down payment required at signing, if applicable. Offer not available in PA. Some customers may not qualify. Not available with lease and some other offers. 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 10.8%. Not available with leases and some other offers. Must take new retail delivery by 09/30/2025. 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. $2,750 Cash
  • Applies to this new 2025 GMC Sierra 1500

Disclaimer(s)
  • Not available with special financing, lease and some other offers. Must take new retail delivery by 09/30/2025. (See Trims)
  • See State Disclaimer *
Manufacturer Offer

Bonus Cash

  1. $1,750 Cash
  • Applies to this new 2025 GMC Sierra 1500

Disclaimer(s)
  • Not available with some other offers. Must take new retail delivery by 09/30/2025. (See Trims)
  • See State Disclaimer *
Manufacturer Offer

Bonus Cash

  1. $500 Cash
  • Applies to this new 2025 GMC Sierra 1500

Disclaimer(s)
  • Not available with some other offers. Must take new retail delivery by 09/30/2025. (See Trims)
  • See State Disclaimer *
Manufacturer Offer

National GMC Cash - Restricted

  • Applies to this new 2025 GMC Sierra 1500.

$2,750*Purchase Allowance Plus $1,750*Bonus Cash Plus $3,500**GMC Loyalty Cash

Disclaimer(s)
  • 2025 GMC Sierra 1500 w/TurboMax. *Not available with special finance or lease offers. **Must show proof of a current ownership or lease of a 2011 model year or newer select GM vehicle at least 30 days prior to the new vehicle sale. Take new retail delivery by 09-30-2025. (See Trims)
  • See State Disclaimer *
Manufacturer Offer

SCR GMC Lease - Restricted

  • Applies to this new 2025 GMC Sierra 1500.

Ultra Low-Mileage Lease for Well-Qualified Lessees. $329/month for 24 months. $7,377 due at signing (after all offers). Tax, title, license, and dealer fees extra. $0 security deposit. Mileage charge of $0.25 /mile over 20,000 miles at participating dealers.

Disclaimer(s)
  • Example based on survey. Each dealer sets own price. $329/month for 24 months. Your payments may vary. For eligible new and unused models leased through GM Financial. Payments are for a 2025 GMC Sierra 1500 Short Box Crew Cab 4WD Elevation w/TurboMax with an MSRP of $57,095. Based on due at signing amount of $7,377 (after all offers). 24 monthly payments total $7,896. Option to purchase at lease end for an amount to be determined at lease signing. Lessor must approve lease. Take new retail delivery by 09-30-2025. Lessee pays for maintenance, repair, excess wear and disposition fee of $495 or less at end of lease. No security deposit required. Payments may be higher in some states. Not available with other offers. (See Trims)
  • See State Disclaimer *
Manufacturer Offer

GM First Responder Offer

  1. $500 Offer
  • Applies to this new 2025 GMC Sierra 1500

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 01/02/2026. (See Trims)
  • See State Disclaimer *
Manufacturer Offer

GM Military Offer

  1. $500 Offer
  • Applies to this new 2025 GMC Sierra 1500

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 01/02/2026. (See Trims)
  • See State Disclaimer *

2024

Manufacturer Offer

No Monthly Payments for 120 Days for Well-Qualified Buyers When Financed w/ GM Financial

  1. 0.0% APR for 36 months
  2. 2.9% APR for 48 months
  3. 5.9% APR for 60 months
  4. 5.9% APR for 72 months
  • Applies to this new 2024 GMC Sierra 1500

No Monthly Payments for 120 Days for Well-Qualified Buyers When Financed w/ GM Financial

Disclaimer(s)
  • Deferred monthly payments for 120 days. Finance charges accrue from date of financing. Must finance with GM Financial. Down payment required at signing, if applicable. Offer not available in PA. Some customers may not qualify. Not available with lease and some other offers. 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 8.5%. Not available with leases and some other offers. Must take new retail delivery by 09/30/2025. 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. $2,750 Cash
  • Applies to this new 2024 GMC Sierra 1500

Disclaimer(s)
  • Not available with special financing, lease and some other offers. Must take new retail delivery by 09/30/2025. (See Trims)
  • See State Disclaimer *
Manufacturer Offer

Bonus Cash

  1. $500 Cash
  • Applies to this new 2024 GMC Sierra 1500

Disclaimer(s)
  • Not available with some other offers. Must take new retail delivery by 09/30/2025. (See Trims)
  • See State Disclaimer *
Manufacturer Offer

GM First Responder Offer

  1. $500 Offer
  • Applies to this new 2024 GMC Sierra 1500

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 01/02/2026. (See Trims)
  • See State Disclaimer *
Manufacturer Offer

GM Military Offer

  1. $500 Offer
  • Applies to this new 2024 GMC Sierra 1500

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 01/02/2026. (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