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    • Exterior color: Volcanic Red TintcoatVolcanic Red Tintcoat
    • Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
    • 6'10” bed, 6.6l, 8cyl
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    This outstanding example of a 2025 GMC Sierra 2500HD AT4 is offered by Legacy Buick GMC. This GMC includes: LPO, HITCH PACKAGE Tow Hitch GVWR, 11,350 ...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UPEY7SF189856
    Stock: 25G9193
    Listed since: 11-22-2024

  • Arriving Soon
    Photos not available
    • Exterior color: Sterling MetallicSterling Metallic
    • Interior color: Jet Black vinylJet Black vinyl
    • 6'10” bed, 6.6l, 8cyl
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Upgraded Headlights
    • Blind Spot Monitorin...
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    Legacy Buick GMC is excited to offer this 2025 GMC Sierra 2500HD Pro. You appreciate the finer things in life, the vehicle you drive should not be the...

    Features and Specs:

    Listing Information:

    VIN: 1GT5ULE7XSF302252
    Stock: 25G1124
    Listed since: 06-02-2025

    • Exterior color: Sterling MetallicSterling Metallic
    • Interior color: Jet Black premium leatherJet Black premium leather
    • 6'10” bed, 6.6l, 8cyl
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    Contact Legacy Buick GMC today for information on dozens of vehicles like this 2025 GMC Sierra 2500HD Denali. This GMC includes: GOOSENECK / 5TH WHEEL...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UREY6SF248973
    Stock: 25G9449
    Listed since: 02-28-2025

    • Exterior color: Summit WhiteSummit White
    • Interior color: Jet Black clothJet Black cloth
    • 6'10” bed, 6.6l, 8cyl
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Upgraded Headlights
    • Blind Spot Monitorin...
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    Legacy Buick GMC is excited to offer this 2025 GMC Sierra 2500HD Pro. This GMC includes: POWER OUTLET, INSTRUMENT PANEL, 120-VOLT 1SA PRO SAFETY PLUS ...

    Features and Specs:

    Listing Information:

    VIN: 1GT4ULE78SF299654
    Stock: 25G1046
    Listed since: 05-01-2025

  • 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 clothJet Black cloth
    • 6'10” bed, 6.6l, 8cyl
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Upgraded Headlights
    • Blind Spot Monitorin...
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    Contact Legacy Buick GMC today for information on dozens of vehicles like this 2025 GMC Sierra 2500HD Pro. This GMC includes: POWER OUTLET, INSTRUMENT...

    Features and Specs:

    Listing Information:

    VIN: 1GT4ULE79SF298321
    Stock: 25G1044
    Listed since: 04-30-2025

  • Arriving Soon
    • Exterior color: Onyx BlackOnyx Black
    • Interior color: Obsidian Rush premium leatherObsidian Rush premium leather
    • 6'10” bed, 6.6l, 8cyl
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    This outstanding example of a 2025 GMC Sierra 2500HD AT4X is offered by Legacy Buick GMC. This GMC includes: ONYX BLACK GOOSENECK / 5TH WHEEL PREP PAC...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UZEY4SF301542
    Stock: 25G1057
    Listed since: 05-07-2025

    • Exterior color: Onyx BlackOnyx Black
    • Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
    • 6'10” bed, 6.6l, 8cyl
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    This outstanding example of a 2025 GMC Sierra 2500HD AT4 is offered by Legacy Buick GMC. This GMC includes: LPO, HITCH PACKAGE Tow Hitch GVWR, 11,350 ...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UPEY2SF199677
    Stock: 25G9265
    Listed since: 12-11-2024

    • Exterior color: Volcanic Red TintcoatVolcanic Red Tintcoat
    • Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
    • 6'10” bed, 6.6l, 8cyl
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    This 2025 GMC Sierra 2500HD AT4 is proudly offered by Legacy Buick GMC This GMC includes: LPO, HITCH PACKAGE Tow Hitch GVWR, 11,350 LBS TRANSMISSION, ...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UPEY4SF199325
    Stock: 25G9250
    Listed since: 12-09-2024

  • 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: Jet Black premium leatherJet Black premium leather
    • 6'10” bed, 6.6l, 8cyl
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    This outstanding example of a 2025 GMC Sierra 2500HD Denali is offered by Legacy Buick GMC. This GMC includes: GOOSENECK / 5TH WHEEL PREP PACKAGE GVWR...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UREY7SF225413
    Stock: 25G9363
    Listed since: 02-04-2025

  • Arriving Soon
    Stock photo**
    • Exterior color: Summit WhiteSummit White
    • Interior color: Obsidian Rush premium leatherObsidian Rush premium leather
    • 6'10” bed, 6.6l, 8cyl
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    This outstanding example of a 2025 GMC Sierra 2500HD AT4X is offered by Legacy Buick GMC. This GMC includes: GOOSENECK / 5TH WHEEL PREP PACKAGE ALTERN...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UZEY0SF321948
    Stock: 25G1119
    Listed since: 05-30-2025

    • Exterior color: Sterling MetallicSterling Metallic
    • Interior color: Jet Black premium leatherJet Black premium leather
    • 6'10” bed, 6.6l, 8cyl
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    Contact Legacy Buick GMC today for information on dozens of vehicles like this 2025 GMC Sierra 2500HD Denali. This GMC includes: GOOSENECK / 5TH WHEEL...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UREY0SF194697
    Stock: 25G9230
    Listed since: 12-03-2024

    • Exterior color: White Frost TricoatWhite Frost Tricoat
    • Interior color: Jet Black premium leatherJet Black premium leather
    • 6'10” bed, 6.6l, 8cyl
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    Contact Legacy Buick GMC today for information on dozens of vehicles like this 2025 GMC Sierra 2500HD Denali. This GMC includes: GOOSENECK / 5TH WHEEL...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UREY4SF226230
    Stock: 25G9344
    Listed since: 01-31-2025

  • 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.
  • New Listing
    Photos not available
    • Exterior color: Sterling MetallicSterling Metallic
    • Interior color: Jet BlackJet Black
    • 6'10” bed, 6.6l, 8cyl
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Upgraded Headlights
    • Blind Spot Monitorin...
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    This outstanding example of a 2025 GMC Sierra 2500HD Pro is offered by Legacy Buick GMC. This GMC includes: POWER OUTLET, INSTRUMENT PANEL, 120-VOLT 1...

    Features and Specs:

    Listing Information:

    VIN: 1GT4ULEY0SF326161
    Stock: 25G1133
    Listed since: 06-03-2025

    • Exterior color: Sterling MetallicSterling Metallic
    • Interior color: Jet Black premium leatherJet Black premium leather
    • 6'10” bed, 6.6l, 8cyl
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    Contact Legacy Buick GMC today for information on dozens of vehicles like this 2025 GMC Sierra 2500HD Denali. This GMC includes: GOOSENECK / 5TH WHEEL...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UREY6SF226777
    Stock: 25G9343
    Listed since: 01-31-2025

    • Exterior color: White Frost TricoatWhite Frost Tricoat
    • Interior color: Alpine Umber premium leatherAlpine Umber premium leather
    • 6'10” bed, 6.6l, 8cyl
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    Contact Legacy Buick GMC today for information on dozens of vehicles like this 2025 GMC Sierra 2500HD Denali Ultimate. This GMC includes: GVWR, 11,350...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UXEY3SF287590
    Stock: 25G1017
    Listed since: 04-15-2025

    • Exterior color: Sterling MetallicSterling Metallic
    • Interior color: Alpine Umber premium leatherAlpine Umber premium leather
    • 6'10” bed, 6.6l, 8cyl
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    This 2025 GMC Sierra 2500HD Denali Ultimate is proudly offered by Legacy Buick GMC This GMC includes: GVWR, 11,350 LBS ALTERNATORS, DUAL, 220-AMPS PRI...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UXEY0SF291922
    Stock: 25G1025
    Listed since: 04-22-2025

  • 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
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    This 2025 GMC Sierra 2500HD AT4 is proudly offered by Legacy Buick GMC Pull up in the vehicle and the valet will want to parked on the front row. This...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UPEY5SF213829
    Stock: 25G9736
    Listed since: 02-07-2025

    • Exterior color: Downpour MetallicDownpour Metallic
    • Interior color: Jet Black premium leatherJet Black premium leather
    • 6'10” bed, 6.6l, 8cyl
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    Legacy Buick GMC is excited to offer this 2025 GMC Sierra 2500HD Denali. This GMC includes: GOOSENECK / 5TH WHEEL PREP PACKAGE GVWR, 11,350 LBS ENGINE...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UREY9SF226949
    Stock: 25G9364
    Listed since: 02-04-2025

    • Exterior color: Sterling MetallicSterling Metallic
    • Interior color: Jet Black premium leatherJet Black premium leather
    • 6'10” bed, 6.6l, 8cyl
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    This 2025 GMC Sierra 2500HD Denali is proudly offered by Legacy Buick GMC This GMC includes: GOOSENECK / 5TH WHEEL PREP PACKAGE GVWR, 11,350 LBS ENGIN...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UREY3SF188487
    Stock: 25G9216
    Listed since: 11-26-2024

    • Exterior color: Onyx BlackOnyx Black
    • Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
    • 6'10” bed, 6.6l, 8cyl
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    Contact Legacy Buick GMC today for information on dozens of vehicles like this 2025 GMC Sierra 2500HD AT4. This GMC includes: LPO, HITCH PACKAGE Tow H...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UPEY6SF198354
    Stock: 25G9258
    Listed since: 12-10-2024

    • Exterior color: Sterling MetallicSterling Metallic
    • Interior color: Jet Black premium leatherJet Black premium leather
    • 6'10” bed, 6.6l, 8cyl
    • Legacy Buick GMC (29 mi away)5 out of 5 stars(3)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Slidell, LA / 29 miles away from Covington, LA

    This outstanding example of a 2025 GMC Sierra 2500HD Denali is offered by Legacy Buick GMC. This GMC includes: GOOSENECK / 5TH WHEEL PREP PACKAGE GVWR...

    Features and Specs:

    Listing Information:

    VIN: 1GT4UREY3SF226638
    Stock: 25G9362
    Listed since: 02-04-2025

Showing 22 - 42 out of 70 listings

Consumer Reviews for the GMC Sierra 2500HD

Read recent reviews for the GMC Sierra 2500HD
Overall Consumer Rating
3.9 out of 5 stars28 Reviews
Write a vehicle reviewSee all 28 reviews
  • 5 star
    (64%)
  • 4 star
    (11%)
  • 3 star
    (0%)
  • 2 star
    (4%)
  • 1 star
    (21%)
1 out of 5 stars

Be Aware!!! Do Not Buy!!

Jim Feltes, 01/10/2024
2024 GMC Sierra 2500HD AT4 4dr Crew Cab 4WD SB (6.6L 8cyl 10A)
I bought a new 2024 2500HD AT4 on 11/15/23 - loved the truck except for the puddle of coolant it left on my garage floor. Took it to the local dealer who replaced the oil cooler - once home i discovered it was still leaking from the same place. Took it back to the dealer who had to order another oil cooler back on 12/14. I have been waiting since then with no estimated time of when … the part will arrive. I have been without a vehicle for 53 days now and GM Customer Service keeps giving me the runaround. To say the least I am disappointed in the truck but extremely disappointed with GM and in the manner in which this has been handled.
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TrimMPGEngineStarting Price
2025 GMC Sierra 2500HD AT4 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A)N/A8-cylinders (diesel)$88,355
2025 GMC Sierra 2500HD Pro 4dr Double Cab 4WD SB (6.6L 8cyl 10A)N/A8-cylinders (gas)$56,810
2025 GMC Sierra 2500HD Denali 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A)N/A8-cylinders (diesel)$90,310
2025 GMC Sierra 2500HD Pro 4dr Crew Cab 4WD SB (6.6L 8cyl 10A)N/A8-cylinders (gas)$58,115
2025 GMC Sierra 2500HD AT4X 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A)N/A8-cylinders (diesel)$97,980
2025 GMC Sierra 2500HD Pro 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A)N/A8-cylinders (diesel)$68,830
2025 GMC Sierra 2500HD Denali Ultimate 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A)N/A8-cylinders (diesel)$103,270

More about the GMC Sierra 2500HD

Edmunds has 70 New GMC Sierra 2500HDs for sale near you, including a 2025 Sierra 2500HD Pro Pickup and a 2025 Sierra 2500HD Denali Ultimate Pickup ranging in price from $56,810 to $103,900.

How much is a new 2025 GMC Sierra 2500HD in Covington, LA?

A new 2025 GMC Sierra 2500HD starts at $56,810 (including destination charge) in Covington, LA. Prices will go up based on the trim level you choose and any options you add. Keep in mind that prices can also vary from one state to another and even from one dealership to the next.

How much does a 2025 GMC Sierra 2500HD Crew Cab cost in Covington, LA?

A new 2025 GMC Sierra 2500HD Crew Cab starts at $58,115 in Covington, LA. Prices will vary depending on what trim level you choose. Each state may have different pricing, so make sure you enter your correct ZIP code on Edmunds.
Other versions include:
2025 GMC Sierra 2500HD Double Cab which starts at $56,810.
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** This image is a stock photo and may not reflect the model year or color of, and/or equipment offered on, the advertised vehicle.