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110 listings
- $86,730MSRP $98,730
- Exterior color: Downpour MetallicDownpour Metallic
- Interior color: Atmosphere/Brownstone premium leatherAtmosphere/Brownstone premium leather
- 6'10” bed, 6.6l, 8cyl
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
Contact Legacy Buick GMC today for information on dozens of vehicles like this 2026 GMC Sierra 2500HD Denali. Today's luxury vehicle is not just about...
- Listing Information:
- VIN:
- 1GT4UREY6TF283224
- Stock:
- 26G2208
- Listed since:
- 04-28-2026
- $86,000MSRP $98,000
- Exterior color: Onyx BlackOnyx Black
- Interior color: Atmosphere/Brownstone premium leatherAtmosphere/Brownstone premium leather
- 6'10” bed, 6.6l, 8cyl
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
Legacy Buick GMC is excited to offer this 2026 GMC Sierra 2500HD Denali. This GMC includes: LPO, ALL-WEATHER FLOOR LINER, 1ST AND 2ND ROWS Floor Mats ...
- Listing Information:
- VIN:
- 1GT4UREY2TF236336
- Stock:
- 26G2022
- Listed since:
- 03-09-2026
- $49,705MSRP $58,205
- Exterior color: Summit WhiteSummit White
- Interior color: Jet Black vinylJet Black vinyl
- 6'10” bed, 6.6l, 8cyl
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
This outstanding example of a 2026 GMC Sierra 2500HD Pro is offered by Legacy Buick GMC. This GMC includes: GVWR, 10,350 LBS X31 OFF-ROAD PACKAGE Tire...
- Listing Information:
- VIN:
- 1GT5ULE77TF175977
- Stock:
- 26G1678
- Listed since:
- 11-18-2025
- Arriving Soon$91,355MSRP $101,355
- Exterior color: Glacier White TricoatGlacier White Tricoat
- Interior color: Alpine Umber premium leatherAlpine Umber premium leather
- 6'10” bed, 6.6l, 8cyl
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
This 2026 GMC Sierra 2500HD Denali Ultimate is offered to you for sale by Legacy Buick GMC. This GMC includes: LPO, HARD FOLDING TRUCK BED COVER BY RE...
- Listing Information:
- VIN:
- 1GT4UXEY2TF311170
- Stock:
- 26G2312
- Listed since:
- 06-01-2026
- Arriving Soon$81,730MSRP $92,730
- 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
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
You can find this 2026 GMC Sierra 2500HD AT4 and many others like it at Legacy Buick GMC. This GMC includes: GOOSENECK / 5TH WHEEL PREP PACKAGE LPO, H...
- Listing Information:
- VIN:
- 1GT4UPEYXTF312955
- Stock:
- 26G2334
- Listed since:
- 06-08-2026
- Arriving Soon$81,080MSRP $92,080
- Exterior color: Sterling MetallicSterling Metallic
- Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
- 6'10” bed, 6.6l, 8cyl
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
Contact Legacy Buick GMC today for information on dozens of vehicles like this 2026 GMC Sierra 2500HD AT4. This GMC includes: GOOSENECK / 5TH WHEEL PR...
- Listing Information:
- VIN:
- 1GT4UPEY4TF316872
- Stock:
- 26G2324
- Listed since:
- 06-05-2026
- Arriving Soon$81,080MSRP $92,080
- Exterior color: Onyx BlackOnyx Black
- Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
- 6'10” bed, 6.6l, 8cyl
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
This 2026 GMC Sierra 2500HD AT4 is offered to you for sale by Legacy Buick GMC. This GMC includes: GOOSENECK / 5TH WHEEL PREP PACKAGE ALTERNATORS, DUA...
- Listing Information:
- VIN:
- 1GT4UPEY6TF311737
- Stock:
- 26G2327
- Listed since:
- 06-05-2026
- $77,320MSRP $88,320
- Exterior color: Sterling MetallicSterling Metallic
- Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
- 6'10” bed, 6.6l, 8cyl
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
This 2026 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...
- Listing Information:
- VIN:
- 1GT4UPEY9TF218548
- Stock:
- 26G2285
- Listed since:
- 05-14-2026
- $95,405MSRP $105,405
- Exterior color: Glacier White TricoatGlacier White Tricoat
- Interior color: Alpine Umber premium leatherAlpine Umber premium leather
- 6'10” bed, 6.6l, 8cyl
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
Contact Legacy Buick GMC today for information on dozens of vehicles like this 2026 GMC Sierra 2500HD Denali Ultimate. There's a level of quality and ...
- Listing Information:
- VIN:
- 1GT4UXEY3TF281032
- Stock:
- 26G2195
- Listed since:
- 04-23-2026
- Arriving Soon$81,080MSRP $92,080
- Exterior color: Sterling MetallicSterling Metallic
- Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
- 6'10” bed, 6.6l, 8cyl
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
Contact Legacy Buick GMC today for information on dozens of vehicles like this 2026 GMC Sierra 2500HD AT4. This GMC includes: GOOSENECK / 5TH WHEEL PR...
- Listing Information:
- VIN:
- 1GT4UPEY6TF317344
- Stock:
- 26G2332
- Listed since:
- 06-08-2026
- Arriving Soon$91,355MSRP $101,355
- Exterior color: Glacier White TricoatGlacier White Tricoat
- Interior color: Alpine Umber premium leatherAlpine Umber premium leather
- 6'10” bed, 6.6l, 8cyl
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
Contact Legacy Buick GMC today for information on dozens of vehicles like this 2026 GMC Sierra 2500HD Denali Ultimate. This GMC includes: LPO, HARD FO...
- Listing Information:
- VIN:
- 1GT4UXEYXTF310400
- Stock:
- 26G2313
- Listed since:
- 06-01-2026
- $80,585MSRP $91,585
- Exterior color: Summit WhiteSummit White
- Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
- 6'10” bed, 6.6l, 8cyl
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
Contact Legacy Buick GMC today for information on dozens of vehicles like this 2026 GMC Sierra 2500HD AT4. This GMC includes: GOOSENECK / 5TH WHEEL PR...
- Listing Information:
- VIN:
- 1GT4UPEY2TF274220
- Stock:
- 26G2169
- Listed since:
- 04-17-2026
- $87,000MSRP $99,000
- Exterior color: Glacier White TricoatGlacier White Tricoat
- Interior color: Jet Black premium leatherJet Black premium leather
- 6'10” bed, 6.6l, 8cyl
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
Contact Legacy Buick GMC today for information on dozens of vehicles like this 2026 GMC Sierra 2500HD Denali. This GMC includes: LPO, ALL-WEATHER FLOO...
- Listing Information:
- VIN:
- 1GT4UREY6TF236257
- Stock:
- 26G2027
- Listed since:
- 03-09-2026
- $81,080MSRP $92,080
- Exterior color: Sterling MetallicSterling Metallic
- Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
- 6'10” bed, 6.6l, 8cyl
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
This 2026 GMC Sierra 2500HD AT4 is offered to you for sale by Legacy Buick GMC. This GMC includes: GOOSENECK / 5TH WHEEL PREP PACKAGE ALTERNATORS, DUA...
- Listing Information:
- VIN:
- 1GT4UPEY5TF299404
- Stock:
- 26G2287
- Listed since:
- 05-15-2026
- $90,750MSRP $100,750
- Exterior color: Sterling MetallicSterling Metallic
- Interior color: Obsidian Rush premium leatherObsidian Rush premium leather
- 6'10” bed, 6.6l, 8cyl
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
This 2026 GMC Sierra 2500HD AT4X is offered to you for sale by Legacy Buick GMC. Pull up in the vehicle and the valet will want to parked on the front...
- Listing Information:
- VIN:
- 1GT4UZEY8TF277795
- Stock:
- 26G2193
- Listed since:
- 04-23-2026
- $90,255MSRP $100,255
- Exterior color: Summit WhiteSummit White
- Interior color: Obsidian Rush premium leatherObsidian Rush premium leather
- 6'10” bed, 6.6l, 8cyl
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
Contact Legacy Buick GMC today for information on dozens of vehicles like this 2026 GMC Sierra 2500HD AT4X. This GMC includes: GOOSENECK / 5TH WHEEL P...
- Listing Information:
- VIN:
- 1GT4UZEY8TF288960
- Stock:
- 26G2252
- Listed since:
- 05-05-2026
- $79,645MSRP $91,645
- Exterior color: Sterling MetallicSterling Metallic
- Interior color: Jet Black premium leatherJet Black premium leather
- 6'10” bed, 6.6l, 8cyl
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
This outstanding example of a 2026 GMC Sierra 2500HD Denali is offered by Legacy Buick GMC. This GMC includes: STERLING METALLIC GVWR, 11,350 LBS DENA...
- Listing Information:
- VIN:
- 1GT4UREY7TF179793
- Stock:
- 26G1707
- Listed since:
- 11-21-2025
- $103,592MSRP $92,880
- Exterior color: Glacier White TricoatGlacier White Tricoat
- Interior color: Jet Black premium leatherJet Black premium leather
- 6'10” bed, 6.6l, 8cyl
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
This 2026 GMC Sierra 2500HD Denali is proudly offered by Legacy Buick GMC This GMC includes: GVWR, 11,350 LBS TRAILER TIRE PRESSURE MONITOR SENSORS Ti...
- Listing Information:
- VIN:
- 1GT4UREY9TF199530
- Stock:
- 26G1861
- Listed since:
- 01-09-2026
- New Listing$90,585MSRP $91,585
- Exterior color: Summit WhiteSummit White
- Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
- 6'10” bed, 6.6l, 8cyl
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
Contact Legacy Buick GMC today for information on dozens of vehicles like this 2026 GMC Sierra 2500HD AT4. This GMC includes: GOOSENECK / 5TH WHEEL PR...
- Listing Information:
- VIN:
- 1GT4UPEY6TF317070
- Stock:
- 26G2348
- Listed since:
- 06-12-2026
- New Listing$91,080MSRP $92,080
- Exterior color: Onyx BlackOnyx Black
- Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
- 6'10” bed, 6.6l, 8cyl
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
Contact Legacy Buick GMC today for information on dozens of vehicles like this 2026 GMC Sierra 2500HD AT4. This GMC includes: GOOSENECK / 5TH WHEEL PR...
- Listing Information:
- VIN:
- 1GT4UPEY2TF312934
- Stock:
- 26G2351
- Listed since:
- 06-12-2026
- $65,795MSRP $71,795
- Exterior color: Sterling MetallicSterling Metallic
- Interior color: Jet Black vinylJet Black vinyl
- 6'10” bed, 6.6l, 8cyl
- 69 mi away
Close
Located in Slidell, LA / 69 miles away from Gonzales, LA
This outstanding example of a 2026 GMC Sierra 2500HD Pro is offered by Legacy Buick GMC. This GMC includes: TRANSMISSION, 10-SPEED AUTOMATIC A/T 10-Sp...
- Listing Information:
- VIN:
- 1GT4ULEYXTF287399
- Stock:
- 26G2247
- Listed since:
- 05-04-2026
Showing 1 - 21 out of 110 listings
Consumer Reviews for the GMC Sierra 2500HD
Read recent reviews for the GMC Sierra 2500HD
2024 GMC Denali Ultimate
Justin Mullinax, 09/03/2023
2024 GMC Sierra 2500HD Denali Ultimate 4dr Crew Cab 4WD LB (6.6L 8cyl Turbodiesel 10A)
I purchased and still have a 2024 GMC Denali Ultimate that I have had nothing but issues with since the second week of purchasing new. The truck left me and my family stranded in Walsenburg Colorado with only 1,253 miles on it. We called On Star to have a wrecker take it to the dealer. On Star wouldn’t send a wrecker because we had a 22’ utility trailer so we where out a wrecker bill. I … called Ferguson GMC where I purchased the vehicle from and left multiple messages for my salesman and the GM to see what my options were. I never received a call or text from either. One week after the day it broke down I did get a call back from the service manager MIKE GENOVESE . Mike informed me there was nothing they could do since it was already at another dealership. The truck was taken to Wilcoxson GMC in Pueblo Colorado where it sat for 6 weeks getting a new DPF filter and Pressure Differential Sensor. GM has still been unwilling to compensate for the 6 weeks of being with our primary vehicle used for work. We literally had to purchase another New GMC from Wilcoxson to get home as there where no loaner vehicles available. When our 2024 GMC showed up at our house through GM reunite program it had 680 miles more than when it was delivered to the dealership and there was no diesel or def fluid in the truck. We finally got a reimbursement check for the hotel room we had to get for 2 nights waiting for the dealership to open. I wouldn’t recommend buying anything from General Motors as they don’t stand behind anything. I have spent over 40 hours trying to get a fair compensation or Buy Back from GM and have yet to get anywhere with them. I was told they would Repurchase it and was told to get in contact with MIKE GENOVESE the service manager at Ferguson GMC in Norman Oklahoma. I called Mike to schedule a time to bring it in for the Buy Back and he didn’t know anything about it. So I called Shaun Gusumano back and he assured me Mike was brought up to speed and would be handling it. Once again I called Mike and still isn’t aware. If you are having any issues with getting ahold of GM please let Shaun know as he is not taking care of my issues. [contact info removed]
| Trim | MPG | Engine | Starting Price |
|---|---|---|---|
| 2026 GMC Sierra 2500HD Denali 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A) | N/A | 8-cylinders (diesel) | $91,645 |
| 2026 GMC Sierra 2500HD Pro 4dr Double Cab 4WD SB (6.6L 8cyl 10A) | N/A | 8-cylinders (gas) | $58,205 |
| 2026 GMC Sierra 2500HD Denali Ultimate 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A) | N/A | 8-cylinders (diesel) | $101,355 |
| 2026 GMC Sierra 2500HD AT4 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A) | N/A | 8-cylinders (diesel) | $88,320 |
| 2026 GMC Sierra 2500HD AT4X 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A) | N/A | 8-cylinders (diesel) | $100,255 |
| 2026 GMC Sierra 2500HD Pro 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A) | N/A | 8-cylinders (diesel) | $71,795 |
More about the GMC Sierra 2500HD
Edmunds has 110 New GMC Sierra 2500HDs for sale near you, including a 2026 Sierra 2500HD Pro Pickup and a 2026 Sierra 2500HD Denali Pickup ranging in price from $49,705 to $103,592.
How much is a new 2026 GMC Sierra 2500HD in Gonzales, LA?
- A new 2026 GMC Sierra 2500HD starts at $49,705 (including destination charge) in Gonzales, 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 2026 GMC Sierra 2500HD Crew Cab cost in Gonzales, LA?
- A new 2026 GMC Sierra 2500HD Crew Cab starts at $65,795 in Gonzales, 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:
2026 GMC Sierra 2500HD Double Cab which starts at $49,705.