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  • Stock photo**
    • Exterior color: Onyx BlackOnyx Black
    • Interior color: Obsidian Rush premium leatherObsidian Rush premium leather
    • 6'10” bed, 6.6l, 8cyl
    • Simpson Buick GMC (16 mi away)5 out of 5 stars(5)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Buena Park, CA / 16 miles away from Aliso Viejo, CA

    Onyx Black 2025 GMC Sierra 2500HD Duramax 6.6L V8 TurbodieselAT4X 10-Speed Automatic, 4WD, Obsidian Rush Full Grain Leather.All Roads Lead to Simpson.

    Features and Specs:

    Listing Information:

    VIN: 1GT4UZEY7SF341467
    Stock: 341467
    Listed since: 07-09-2025

  • Stock photo**
    • Exterior color: Summit WhiteSummit White
    • Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
    • 6'10” bed, 6.6l, 8cyl
    • Simpson Buick GMC (16 mi away)5 out of 5 stars(5)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Buena Park, CA / 16 miles away from Aliso Viejo, CA

    Summit White 2025 GMC Sierra 2500HD Duramax 6.6L V8 TurbodieselAT4 10-Speed Automatic, 4WD, Jet Blk With Kalahari Acc Leather.All Roads Lead to Simpso...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UPEY8SF347363
    Stock: 347363
    Listed since: 06-30-2025

  • Stock photo**
    • Exterior color: Sterling MetallicSterling Metallic
    • Interior color: Jet Black premium leatherJet Black premium leather
    • 6'10” bed, 6.6l, 8cyl
    • Simpson Buick GMC (16 mi away)5 out of 5 stars(5)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Buena Park, CA / 16 miles away from Aliso Viejo, CA

    Sterling Metallic 2025 GMC Sierra 2500HD Duramax 6.6L V8 TurbodieselDenali 10-Speed Automatic, 4WD, Black Leather.All Roads Lead to Simpson.

    Features and Specs:

    Listing Information:

    VIN: 1GT4UREYXSF304512
    Stock: 304512
    Listed since: 06-19-2025

    • Exterior color: White Frost TricoatWhite Frost Tricoat
    • Interior color: Alpine Umber premium leatherAlpine Umber premium leather
    • 6'10” bed, 6.6l, 8cyl
    • Thorson Motor Center (36 mi away)5 out of 5 stars(3)
    • Free home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Pasadena, CA / 36 miles away from Aliso Viejo, CA

    This 2025 GMC Sierra 2500HD Denali Ultimate, has a White Frost Tricoat exterior color and a Alpine Umber interior color with 0 miles. The Stoc...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UXEY3SF255559
    Stock: T55720
    Listed since: 03-25-2025

  • Advertisement

    Special offers available

    2025 GMC Sierra 2500HD
    $46,300
    starting MSRP
    • 2 Trims
    View Offers 
    *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
    • Exterior color: Summit WhiteSummit White
    • Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
    • 5'10” bed, 3l, 6cyl
    • Thorson Motor Center (36 mi away)5 out of 5 stars(3)
    • Free home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Pasadena, CA / 36 miles away from Aliso Viejo, CA

    This 2025 GMC Sierra 1500 AT4, has a Summit White exterior color and a Jet Black with Kalahari accents interior color with 0 miles. The Stock ...

    Features and Specs:

    23 Combined MPG (21 City/24 Highway)

    Listing Information:

    VIN: 3GTUUEE8XSG277268
    Stock: T56157
    Listed since: 06-30-2025

    • Exterior color: Sterling MetallicSterling Metallic
    • Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
    • 5'10” bed, 3l, 6cyl
    • Thorson Motor Center (36 mi away)5 out of 5 stars(3)
    • Free home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Pasadena, CA / 36 miles away from Aliso Viejo, CA

    This 2025 GMC Sierra 1500 AT4, has a Sterling Metallic exterior color and a Jet Black with Kalahari accents interior color with 0 miles. The S...

    Features and Specs:

    23 Combined MPG (21 City/24 Highway)

    Listing Information:

    VIN: 3GTUUEE8XSG304176
    Stock: T55883
    Listed since: 06-10-2025

    • Exterior color: Summit WhiteSummit White
    • Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
    • 5'10” bed, 3l, 6cyl
    • Thorson Motor Center (36 mi away)5 out of 5 stars(3)
    • Free home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Pasadena, CA / 36 miles away from Aliso Viejo, CA

    This 2025 GMC Sierra 1500 AT4, has a Summit White exterior color and a Jet Black with Kalahari accents interior color with 0 miles. The Stock ...

    Features and Specs:

    23 Combined MPG (21 City/24 Highway)

    Listing Information:

    VIN: 3GTUUEE83SG319425
    Stock: T55885
    Listed since: 05-01-2025

    • Exterior color: Onyx BlackOnyx Black
    • Interior color: Alpine Umber premium leatherAlpine Umber premium leather
    • 8'2” bed, 6.6l, 8cyl
    • Thorson Motor Center (36 mi away)5 out of 5 stars(3)
    • Free home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Pasadena, CA / 36 miles away from Aliso Viejo, CA

    This 2025 GMC Sierra 3500HD Denali Ultimate, has a Onyx Black exterior color and a Alpine Umber interior color with 0 miles. The Stock Number ...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UYEY1SF320799
    Stock: T56070
    Listed since: 06-18-2025

  • Advertisement

    Special offers available

    2025 GMC Sierra 2500HD
    $46,300
    starting MSRP
    • 2 Trims
    View Offers 
    *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
    • Exterior color: White Frost TricoatWhite Frost Tricoat
    • Interior color: Alpine Umber premium leatherAlpine Umber premium leather
    • 6'10” bed, 6.6l, 8cyl
    • Thorson Motor Center (36 mi away)5 out of 5 stars(3)
    • Free home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Pasadena, CA / 36 miles away from Aliso Viejo, CA

    This 2025 GMC Sierra 2500HD Denali Ultimate, has a White Frost Tricoat exterior color and a Alpine Umber interior color with 0 miles. The Stoc...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UXEY8SF293739
    Stock: T56156
    Listed since: 06-30-2025

    • Exterior color: Onyx BlackOnyx Black
    • Interior color: Alpine Umber premium leatherAlpine Umber premium leather
    • 6'10” bed, 6.6l, 8cyl
    • Thorson Motor Center (36 mi away)5 out of 5 stars(3)
    • Free home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Pasadena, CA / 36 miles away from Aliso Viejo, CA

    This 2025 GMC Sierra 2500HD Denali Ultimate, has a Onyx Black exterior color and a Alpine Umber interior color with 0 miles. The Stock Number ...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UXEY0SF303549
    Stock: T55925
    Listed since: 05-27-2025

    • Exterior color: Summit WhiteSummit White
    • Interior color: Alpine Umber premium leatherAlpine Umber premium leather
    • 6'10” bed, 6.6l, 8cyl
    • Thorson Motor Center (36 mi away)5 out of 5 stars(3)
    • Free home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Pasadena, CA / 36 miles away from Aliso Viejo, CA

    This 2025 GMC Sierra 2500HD Denali Ultimate, has a Summit White exterior color and a Alpine Umber interior color with 0 miles. The Stock Numbe...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UXEY8SF303640
    Stock: T55990
    Listed since: 05-29-2025

    • Exterior color: Sterling MetallicSterling Metallic
    • Interior color: Alpine Umber premium leatherAlpine Umber premium leather
    • 6'10” bed, 6.6l, 8cyl
    • Thorson Motor Center (36 mi away)5 out of 5 stars(3)
    • Free home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Pasadena, CA / 36 miles away from Aliso Viejo, CA

    This 2025 GMC Sierra 2500HD Denali Ultimate, has a Sterling Metallic exterior color and a Alpine Umber interior color with 0 miles. The Stock ...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UXEY3SF294751
    Stock: T55871
    Listed since: 05-27-2025

  • Advertisement

    Special offers available

    2025 GMC Sierra 2500HD
    $46,300
    starting MSRP
    • 2 Trims
    View Offers 
    *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
    • Exterior color: Onyx BlackOnyx Black
    • Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
    • 6'10” bed, 6.6l, 8cyl
    • Thorson Motor Center (36 mi away)5 out of 5 stars(3)
    • Free home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Pasadena, CA / 36 miles away from Aliso Viejo, CA

    This 2025 GMC Sierra 2500HD AT4, has a Onyx Black exterior color and a Jet Black with Kalahari accents interior color with 0 miles. The Stock ...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UPEY6SF304818
    Stock: T55937
    Listed since: 05-27-2025

    • Exterior color: Sterling MetallicSterling Metallic
    • Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
    • 6'10” bed, 6.6l, 8cyl
    • Thorson Motor Center (36 mi away)5 out of 5 stars(3)
    • Free home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Pasadena, CA / 36 miles away from Aliso Viejo, CA

    This 2025 GMC Sierra 2500HD AT4, has a Sterling Metallic exterior color and a Jet Black with Kalahari accents interior color with 0 miles. The...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UPEY3SF305151
    Stock: T55936
    Listed since: 05-27-2025

    • Exterior color: Onyx BlackOnyx Black
    • Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
    • 6'10” bed, 6.6l, 8cyl
    • Thorson Motor Center (36 mi away)5 out of 5 stars(3)
    • Free home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Pasadena, CA / 36 miles away from Aliso Viejo, CA

    This 2025 GMC Sierra 2500HD AT4, has a Onyx Black exterior color and a Jet Black with Kalahari accents interior color with 0 miles. The Stock ...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UPEY5SF294198
    Stock: T55870
    Listed since: 06-10-2025

    • Exterior color: Onyx BlackOnyx Black
    • Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
    • 6'10” bed, 6.6l, 8cyl
    • Thorson Motor Center (36 mi away)5 out of 5 stars(3)
    • Free home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Pasadena, CA / 36 miles away from Aliso Viejo, CA

    This 2025 GMC Sierra 2500HD AT4, has a Onyx Black exterior color and a Jet Black with Kalahari accents interior color with 0 miles. The Stock ...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UPEY9SF301833
    Stock: T55917
    Listed since: 06-10-2025

  • Advertisement

    Special offers available

    2025 GMC Sierra 2500HD
    $46,300
    starting MSRP
    • 2 Trims
    View Offers 
    *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
    • Exterior color: Summit WhiteSummit White
    • Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
    • 6'10” bed, 6.6l, 8cyl
    • Thorson Motor Center (36 mi away)5 out of 5 stars(3)
    • Free home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Pasadena, CA / 36 miles away from Aliso Viejo, CA

    This 2025 GMC Sierra 2500HD AT4, has a Summit White exterior color and a Jet Black with Kalahari accents interior color with 0 miles. The Stoc...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UPEY8SF315450
    Stock: T56004
    Listed since: 06-02-2025

    • Exterior color: Summit WhiteSummit White
    • Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
    • 6'10” bed, 6.6l, 8cyl
    • Thorson Motor Center (36 mi away)5 out of 5 stars(3)
    • Free home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Pasadena, CA / 36 miles away from Aliso Viejo, CA

    This 2025 GMC Sierra 2500HD AT4, has a Summit White exterior color and a Jet Black with Kalahari accents interior color with 0 miles. The Stoc...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UPEY0SF315720
    Stock: T56003
    Listed since: 06-02-2025

    • Exterior color: Onyx BlackOnyx Black
    • Interior color: Jet Black premium leatherJet Black premium leather
    • 5'10” bed, 3l, 6cyl
    • Thorson Motor Center (36 mi away)5 out of 5 stars(3)
    • Free home delivery*
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Pasadena, CA / 36 miles away from Aliso Viejo, CA

    This 2025 GMC Sierra 1500 Denali, has a Onyx Black exterior color and a Jet Black interior color with 0 miles. The Stock Number is T55874. You...

    Features and Specs:

    Listing Information:

    VIN: 3GTPHGE82SG323964
    Stock: T55874
    Listed since: 06-10-2025

    • Exterior color: Sterling MetallicSterling Metallic
    • Interior color: Jet Black premium leatherJet Black premium leather
    • 5'10” bed, 3l, 6cyl
    • Thorson Motor Center (36 mi away)5 out of 5 stars(3)
    • Free home delivery*
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Pasadena, CA / 36 miles away from Aliso Viejo, CA

    This 2025 GMC Sierra 1500 Denali, has a Sterling Metallic exterior color and a Jet Black interior color with 0 miles. The Stock Number is T559...

    Features and Specs:

    Listing Information:

    VIN: 3GTPHGE8XSG322965
    Stock: T55908
    Listed since: 06-10-2025

    • Exterior color: Onyx BlackOnyx Black
    • Interior color: Jet Black premium leatherJet Black premium leather
    • 5'10” bed, 3l, 6cyl
    • Thorson Motor Center (36 mi away)5 out of 5 stars(3)
    • Free home delivery*
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Pasadena, CA / 36 miles away from Aliso Viejo, CA

    This 2025 GMC Sierra 1500 Denali, has a Onyx Black exterior color and a Jet Black interior color with 0 miles. The Stock Number is T55909. You...

    Features and Specs:

    Listing Information:

    VIN: 3GTPHGE89SG323900
    Stock: T55909
    Listed since: 06-10-2025

Showing 169 - 189 out of 556 listings
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