GMC Sierra 3500 Trucks for Sale near San Marcos, Texas
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New 2026 GMC Sierra 3500 AT4 Crew Cab
$89,225 MSRP
$78,725
sell
Key features
- Diesel
- 6.6L Duramax Turbo-Diesel V8 engine
- 4WD
location_on
Newby Buick GMC
Saint George, UT (1,020.1 mi)
(435) 412-2916
New 2026 GMC Sierra 3500 AT4 Crew Cab
$92,949 MSRP
$82,449
sell
Key features
- Diesel
- 6.6L Duramax Turbo-Diesel V8 engine
- 4WD
location_on
Newby Buick GMC
Saint George, UT (1,020.1 mi)
(435) 412-2916
New 2026 GMC Sierra 3500 AT4 Crew Cab
$93,149 MSRP
$82,649
sell
Key features
- Diesel
- 6.6L Duramax Turbo-Diesel V8 engine
- 4WD
location_on
Newby Buick GMC
Saint George, UT (1,020.1 mi)
(435) 412-2916
New 2026 GMC Sierra 3500 Pro Double Cab
$68,785 MSRP
$63,285
sell
Key features
- Diesel
- 6.6L Duramax Turbo-Diesel V8 engine
- 4WD
location_on
Newby Buick GMC
Saint George, UT (1,020.1 mi)
(435) 412-2916
New 2026 GMC Sierra 3500 Pro Crew Cab
$71,160
sell
Key features
- Diesel
- 6.6L Duramax Turbo-Diesel V8 engine
- 4WD
location_on
Newby Buick GMC
Saint George, UT (1,020.1 mi)
(435) 412-2916
New 2026 GMC Sierra 3500 Pro Double Cab
$68,785 MSRP
$63,285
sell
Key features
- Diesel
- 6.6L Duramax Turbo-Diesel V8 engine
- 4WD
location_on
Newby Buick GMC
Saint George, UT (1,020.1 mi)
(435) 412-2916
New 2026 GMC Sierra 3500 AT4 Crew Cab
$93,099 MSRP
$82,599
sell
Key features
- Diesel
- 6.6L Duramax Turbo-Diesel V8 engine
- 4WD
location_on
Newby Buick GMC
Saint George, UT (1,020.1 mi)
(435) 412-2916
New 2026 GMC Sierra 3500 AT4 Crew Cab
$89,870 MSRP
$78,370
sell
Key features
- Diesel
- 6.6L Duramax Turbo-Diesel V8 engine
- 4WD
location_on
Newby Buick GMC
Saint George, UT (1,020.1 mi)
(435) 412-2916
New 2026 GMC Sierra 3500 Pro Crew Cab
$71,460 MSRP
$65,960
sell
Key features
- Diesel
- 6.6L Duramax Turbo-Diesel V8 engine
- 4WD
location_on
Newby Buick GMC
Saint George, UT (1,020.1 mi)
(435) 412-2916
Used 2022 GMC Sierra 3500 Denali Crew Cab
$55,650
speed 75,060 mi
sell
Key features
- Diesel
- 8 Cylinder Engine
- 4x4
location_on
Dahl Chrysler Dodge Jeep Ram Rochester
Rochester, MN (1,019.5 mi)
(507) 889-1983
Used 2025 GMC Sierra 3500 AT4 Crew Cab
$74,401
speed 27,028 mi
sell
Key features
- Diesel
- Turbocharged Diesel V8 6.6L/
- 4WD
location_on
Michigan City Ford
Michigan City, IN (1,019.8 mi)
(219) 356-3965
Used 2025 GMC Sierra 3500 Denali Ultimate Crew Cab
$79,535
speed 40,623 mi
sell
Key features
- Diesel
- Turbocharged Diesel V8 6.6L/
- 4WD
location_on
Michigan City Ford
Michigan City, IN (1,019.8 mi)
(219) 356-3965
Used 2024 GMC Sierra 3500 AT4 Crew Cab
$64,995
speed 30,581 mi
sell
Key features
- Diesel
- 6.6L Duramax Turbo-Diesel V8 engine
- 4WD
location_on
Newby Buick GMC
Saint George, UT (1,020.1 mi)
(435) 412-2916
Used 2022 GMC Sierra 3500 AT4 Crew Cab
$48,495
speed 100,540 mi
sell
Key features
- Diesel
- Engine: 6.6L V8 DuraMax Diesel, Turbo
- 4WD
location_on
Newby Buick GMC
Saint George, UT (1,020.1 mi)
(435) 412-2916
Used 2026 GMC Sierra 3500 Pro Crew Cab
$57,495
speed 44,647 mi
sell
Key features
- Diesel
- 6.6L Duramax Turbo-Diesel V8 engine
- 4WD
location_on
Newby Buick GMC
Saint George, UT (1,020.1 mi)
(435) 412-2916
Used 2019 GMC Sierra 3500 SLT Crew Cab
$15,995
speed 301,216 mi
sell
Key features
- Diesel
- Engine: 6.6L V8 DuraMax Diesel, Turbo
- 4WD
location_on
Newby Buick GMC
Saint George, UT (1,020.1 mi)
(435) 412-2916
Used 2024 GMC Sierra 3500 Denali Ultimate Crew Cab
$69,996
speed 50,695 mi
sell
Key features
- Diesel
- 4WD
- Denali Ultimate
location_on
Kunes Ford Antioch
Antioch, IL (1,022.6 mi)
(847) 262-4311
New 2026 GMC Sierra 3500 Regular Cab Flatbed Truck
$67,782.68
sell
Key features
- Diesel
- 11' 4" Aluminum Future Line Manufacturing Body
- 4WD
location_on
Harry Brown's GMC
Faribault, MN (1,027.3 mi)
(507) 338-6766
New 2026 GMC Sierra 3500 Crew Cab Service Truck
$73,150
sell
Key features
- Gasoline
- 8' 11" Steel Knapheide Body
- 4WD
location_on
Harry Brown's GMC
Faribault, MN (1,027.3 mi)
(507) 338-6766
New 2026 GMC Sierra 3500 Double Cab Cab Chassis
$57,170
sell
Key features
- Gasoline
- 4WD
- 6.6L V8 Gas engine
location_on
Harry Brown's GMC
Faribault, MN (1,027.3 mi)
(507) 338-6766
New 2026 GMC Sierra 3500 Regular Cab 84 CA Cab Chassis
$58,255
sell
Key features
- Diesel
- 84 CA
- 4WD
location_on
Harry Brown's GMC
Faribault, MN (1,027.3 mi)
(507) 338-6766
New 2026 GMC Sierra 3500 AT4 Crew Cab
$80,829
sell
Key features
- Diesel
- 6.6L Duramax Turbo-Diesel V8 engine
- 4WD
location_on
Harry Brown's GMC
Faribault, MN (1,027.3 mi)
(507) 338-6766
New 2026 GMC Sierra 3500 Denali Ultimate Crew Cab
$96,665
sell
Key features
- Diesel
- 6.6L Duramax Turbo-Diesel V8 engine
- 4WD
location_on
Harry Brown's GMC
Faribault, MN (1,027.3 mi)
(507) 338-6766
New 2026 GMC Sierra 3500 AT4 Crew Cab
$81,055
sell
Key features
- Diesel
- 6.6L Duramax Turbo-Diesel V8 engine
- 4WD
location_on
Harry Brown's GMC
Faribault, MN (1,027.3 mi)
(507) 338-6766
New 2026 GMC Sierra 3500 AT4 Crew Cab
$81,055
sell
Key features
- Diesel
- 6.6L Duramax Turbo-Diesel V8 engine
- 4WD
location_on
Harry Brown's GMC
Faribault, MN (1,027.3 mi)
(507) 338-6766
New 2026 GMC Sierra 3500 Pro Regular Cab
$55,030
sell
Key features
- Gasoline
- 6.6L V8 Gas engine
- 4WD
location_on
Harry Brown's GMC
Faribault, MN (1,027.3 mi)
(507) 338-6766
New 2026 GMC Sierra 3500 Denali Crew Cab
$84,485
sell
Key features
- Diesel
- 6.6L Duramax Turbo-Diesel V8 engine
- 4WD
location_on
Harry Brown's GMC
Faribault, MN (1,027.3 mi)
(507) 338-6766
New 2026 GMC Sierra 3500 Denali Ultimate Crew Cab
$96,065
sell
Key features
- Diesel
- 6.6L Duramax Turbo-Diesel V8 engine
- 4WD
location_on
Harry Brown's GMC
Faribault, MN (1,027.3 mi)
(507) 338-6766
New 2026 GMC Sierra 3500 Denali Crew Cab
$81,290
sell
Key features
- Diesel
- 6.6L Duramax Turbo-Diesel V8 engine
- 4WD
location_on
Harry Brown's GMC
Faribault, MN (1,027.3 mi)
(507) 338-6766
New 2026 GMC Sierra 3500 Denali Ultimate Crew Cab
$96,065
sell
Key features
- Diesel
- 6.6L Duramax Turbo-Diesel V8 engine
- 4WD
location_on
Harry Brown's GMC
Faribault, MN (1,027.3 mi)
(507) 338-6766






















































