What is the difference between the GMC Sierra and Chevy Silverado?

The Sierra 1500 and Silverado 1500 share the same underlying platform, engines, and powertrain — but the Sierra is positioned as the more premium offering. The Sierra features more upscale interior materials, distinct exterior styling, and exclusive trims not available on the Silverado, including the Denali luxury trim and the AT4 off-road trim. The Silverado has its own off-road trim (Trail Boss) and tends to be priced slightly lower in the used market.

What is the GMC Sierra Denali?

The Denali is GMC's top-tier luxury trim for the Sierra 1500, featuring premium interior materials, exclusive exterior badging, a signature chrome grille, and the highest level of technology and comfort features in the lineup. In the used market, Denali trims command a premium over base and mid-level trims due to their feature content and strong buyer demand.

What is the GMC Sierra AT4?

The AT4 is GMC's off-road trim for the Sierra 1500, introduced in 2019. It includes a factory 2-inch lift, Rancho shocks, skid plates, hill descent control, and an off-road-tuned suspension. The AT4 competes directly with the Silverado Trail Boss and Ford F-150 Tremor in the light-duty off-road segment. A more capable AT4X variant was added in later model years.

What engines are available in the used GMC Sierra 1500?

The used Sierra 1500 market is dominated by the 5.3L EcoTec3 V8, which covers the majority of SLE, SLT, and AT4 trims. The 6.2L EcoTec3 V8 is available on higher trims including the Denali and provides the highest towing and performance output. Newer models also offer a 2.7L turbocharged four-cylinder. The 5.3L V8 is the most common and practical choice for most buyers.

Is the GMC Sierra 1500 reliable?

The Sierra 1500 shares its powertrain and platform reliability with the Silverado 1500 — generally strong, with the 5.3L V8 being a proven engine across hundreds of thousands of vehicles. The main issue to watch on pre-2021 models is the Active Fuel Management (AFM) system, which can cause lifter failures on high-mileage examples. Many owners and shops address this proactively with a DOD delete kit. Post-2021 models moved to the improved Dynamic Fuel Management (DFM) system.

GMC Sierra 1500 Trucks for Sale near McDonough, Georgia

Used 2015 GMC Sierra 1500 SLT Crew Cab

$16,887

speed 181,385 mi

sell

Key features

Gasoline
5.3L
4WD

location_on

Bob Allen Chrysler Jeep Dodge Ram

Danville, KY (290.8 mi)

(859) 594-7304

Used 2024 GMC Sierra 1500 SLE Crew Cab

$36,441

speed 75,657 mi

sell

Key features

Diesel
3.0L
4WD

location_on

Bob Allen Chrysler Jeep Dodge Ram

Danville, KY (290.8 mi)

(859) 594-7304

Used 2022 GMC Sierra 1500 Elevation Double Cab

contact for price

speed 101,463 mi

sell

Key features

Diesel
3.0L
4WD

location_on

Bob Allen Chrysler Jeep Dodge Ram

Danville, KY (290.8 mi)

(859) 594-7304

Used 2019 GMC Sierra 1500 Denali Crew Cab

$30,857

speed 131,435 mi

sell

Key features

Gasoline
6.2L
4WD

location_on

Bob Allen Chrysler Jeep Dodge Ram

Danville, KY (290.8 mi)

(859) 594-7304

Used 2023 GMC Sierra 1500 AT4 Crew Cab

$45,966

speed 51,716 mi

sell

Key features

Diesel
3.0L
4WD

location_on

Bob Allen Chrysler Jeep Dodge Ram

Danville, KY (290.8 mi)

(859) 594-7304

Used 2023 GMC Sierra 1500 Pro Double Cab

$25,971

speed 95,245 mi

sell

Key features

Gasoline
2.7L
4WD

location_on

Bob Allen Chrysler Jeep Dodge Ram

Danville, KY (290.8 mi)

(859) 594-7304

Used 2022 GMC Sierra 1500 AT4 Crew Cab

$33,000

speed 103,462 mi

sell

Key features

Gasoline
6.2L
4WD

location_on

Big Bend Chevrolet Buick

Chiefland, FL (291.4 mi)

(352) 310-8363

Used 2020 GMC Sierra 1500 AT4 Crew Cab

$42,450 List Price

$39,500

speed 62,606 mi

sell

Key features

Diesel
4WD
AT4

location_on

Bozard Ford-Lincoln

St Augustine, FL (292.2 mi)

(904) 543-3823

Used 2022 GMC Sierra 1500 AT4X Crew Cab

$54,675 List Price

$46,801

speed 39,695 mi

sell

Key features

Gasoline
4WD
AT4X

location_on

Bozard Ford-Lincoln

St Augustine, FL (292.2 mi)

(904) 543-3823

Used 2019 GMC Sierra 1500 Elevation Double Cab

contact for price

speed 107,570 mi

sell

Key features

Gasoline
4WD
Elevation

location_on

Bozard Ford-Lincoln

St Augustine, FL (292.2 mi)

(904) 543-3823

Used 2022 GMC Sierra 1500 Elevation Crew Cab

$28,820

speed 97,600 mi

sell

Key features

Gasoline
RWD
Elevation

location_on

Bozard Ford-Lincoln

St Augustine, FL (292.2 mi)

(904) 543-3823

Used 2023 GMC Sierra 1500 Pro Double Cab

$24,500 List Price

$24,000

speed 132,723 mi

sell

Key features

Gasoline
4WD
Pro

location_on

Bozard Ford-Lincoln

St Augustine, FL (292.2 mi)

(904) 543-3823

Used 2026 GMC Sierra 1500 Denali Ultimate Crew Cab

$75,350 List Price

$67,000

speed 21,320 mi

sell

Key features

Gasoline
4WD
Denali Ultimate

location_on

Bozard Ford-Lincoln

St Augustine, FL (292.2 mi)

(904) 543-3823

Used 2026 GMC Sierra 1500 Denali Ultimate Crew Cab

$69,987

speed 5,794 mi

sell

Key features

Gasoline
4WD
Denali Ultimate

location_on

Team Dodge Ram of Myrtle Beach

Myrtle Beach, SC (292.6 mi)

(843) 960-3342

Used 2024 GMC Sierra 1500 AT4X Crew Cab

$57,789

speed 44,660 mi

sell

Key features

Diesel
4WD
AT4X

location_on

Team Dodge Ram of Myrtle Beach

Myrtle Beach, SC (292.6 mi)

(843) 960-3342

Used 2023 GMC Sierra 1500 SLT Crew Cab

$42,259

speed 51,986 mi

sell

Key features

Diesel
4WD
SLT

location_on

Team Dodge Ram of Myrtle Beach

Myrtle Beach, SC (292.6 mi)

(843) 960-3342

Used 2025 GMC Sierra 1500 SLT Crew Cab

$37,595

speed 41,732 mi

sell

Key features

Gasoline
RWD
SLT

location_on

Impex Auto Sales

Greensboro, NC (293.9 mi)

(336) 698-3281

Used 2024 GMC Sierra 1500 Pro Double Cab

$30,695

speed 33,103 mi

sell

Key features

Gasoline
RWD
Pro

location_on

Impex Auto Sales

Greensboro, NC (293.9 mi)

(336) 698-3281