Whether on a job site in the area or a campground in the wilderness, you’re sure to find a GMC Sierra HD truck. That’s because everyone from contractors to weekend warriors knows that when towing tasks are on the table, the Sierra HD is the truck for the job. At Group 1 GMC Rockville Centre, our Sierra HD inventory includes 2500 HD and 3500 HD models. Which one is best for your driving needs around ? Explore the GMC Sierra HD trim levels and specs below to find out!
2024 GMC Sierra HD Specs
Most people will find that the 2024 GMC Sierra 2500 HD offers more than enough towing and payload power for their needs. However, the 2024 GMC Sierra 3500 HD can pump up the power for those who need to tow over 30,000 pounds. Explore the GMC Sierra HD specs for the 2500 HD and 3500 HD to find your fit.
Sierra 2500 HD Specs
Pro, SLE, and SLT Crew Cab
- Standard 6.6L V8 Gas Engine With Allison® 10-Speed Automatic Transmission
- Max. Available Conventional Trailering: 20,000 pounds
- Max. Available Gooseneck/Fifth-Wheel Trailering: 22,070 pounds
- Max. Payload: 3,903 pounds
Pro, SLE, and SLT Double Cab
- Standard 6.6L V8 Gas Engine With Allison® 10-Speed Automatic Transmission
- Max. Available Conventional Trailering: 17,900 pounds
- Max. Available Gooseneck/Fifth-Wheel Trailering: 18,600 pounds
- Max. Payload: 3,884 pounds
Pro, SLE, and SLT Regular Cab
- Standard 6.6L V8 Gas Engine With Allison® 10-Speed Automatic Transmission
- Max. Available Conventional Trailering: 14,500 pounds
- Max. Available Gooseneck/Fifth-Wheel Trailering: 14,500 pounds
- Max. Payload: 4,093 pounds
AT4 (Crew Cab only)
- Standard 6.6L V8 Gas Engine With Allison® 10-Speed Automatic Transmission
- Max. Available Conventional Trailering: 20,000 pounds
- Max. Available Gooseneck/Fifth-Wheel Trailering: 21,190 pounds
- Max. Payload: 3,859 pounds
AT4X (Crew Cab only)
- Standard 6.6L V8 Gas Engine With Allison® 10-Speed Automatic Transmission
- Max. Available Conventional Trailering: 18,500 pounds
- Max. Available Gooseneck/Fifth-Wheel Trailering: 18,000 pounds
- Max. Payload: 3,291 pounds
Denali (Crew Cab only)
- Standard 6.6L V8 Gas Engine With Allison® 10-Speed Automatic Transmission
- Max. Available Conventional Trailering: 20,000 pounds
- Max. Available Gooseneck/Fifth-Wheel Trailering: 19,900 pounds
- Max. Payload: 3,462 pounds
Denali Ultimate (Crew Cab only)
- Standard 6.6L Duramax Turbo Diesel V8 Engine With Allison® 10-Speed Automatic Transmission
- Max. Available Conventional Trailering: 20,000 pounds
- Max. Available Gooseneck/Fifth-Wheel Trailering: 19,300 pounds
- Max. Payload: 3,368 pounds
Sierra 3500 HD Specs
Pro, SLE, and SLT Crew Cab
- Standard 6.6L V8 Gas Engine With Allison® 10-Speed Automatic Transmission
- Max. Available Conventional Trailering: 20,000 pounds
- Max. Available Gooseneck/Fifth-Wheel Trailering: 31,450 pounds
- Max. Payload: 6,663 pounds
Pro, SLE, and SLT Double Cab
- Standard 6.6L V8 Gas Engine With Allison® 10-Speed Automatic Transmission
- Max. Available Conventional Trailering: 20,000 pounds
- Max. Available Gooseneck/Fifth-Wheel Trailering: 31,580 pounds
- Max. Payload: 6,776 pounds
Pro, SLE, and SLT Regular Cab
- Standard 6.6L V8 Gas Engine With Allison® 10-Speed Automatic Transmission
- Max. Available Conventional Trailering: 20,000 pounds
- Max. Available Gooseneck/Fifth-Wheel Trailering: 36,000 pounds/32,000 pounds
- Max. Payload: 7,234 pounds
AT4 (Crew Cab only)
- Standard 6.6L V8 Gas Engine With Allison® 10-Speed Automatic Transmission
- Max. Available Conventional Trailering: 20,000 pounds
- Max. Available Gooseneck/Fifth-Wheel Trailering: 21,300 pounds
- Max. Payload: 4,043 pounds
Denali (Crew Cab only)
- Standard 6.6L V8 Gas Engine With Allison® 10-Speed Automatic Transmission
- Max. Available Conventional Trailering: 20,000 pounds
- Max. Available Gooseneck/Fifth-Wheel Trailering: 30,800 pounds
- Max. Payload: 6,007 pounds
Denali Ultimate (Crew Cab only)
- Standard 6.6L Duramax Turbo Diesel V8 Engine With Allison® 10-Speed Automatic Transmission
- Max. Available Conventional Trailering: 20,000 pounds
- Max. Available Gooseneck/Fifth-Wheel Trailering: 30,700 pounds
- Max. Payload: 5,543 pounds
2024 GMC Sierra HD Trims and Key Features
Now you know the engine and capabilities you can get with each of the GMC Sierra HD trim levels, but what features will you enjoy during your drives to ? Explore the highlights for the GMC Sierra HD trims below.
Sierra HD Pro Features
- Standard LED Headlamps and Daytime Running Lamps
- Standard Trailering Package and Trailering Mirrors
- Best-in-Class Heavy-Duty Cargo Bed Volume
- Standard Wireless Apple CarPlay® and Wireless Android Auto™ Compatibility
- Available MultiPro™ Tailgate
Sierra HD SLE Features
- Standard 13.4-inch Diagonal Center Touchscreen and 12.3-inch Diagonal Driver Information Center
- Available X31 Off-Road Package With Twin-Tube Rancho® Shocks and Skid Plates
- Standard Wireless Apple CarPlay® and Wireless Android Auto™ Compatibility
- Standard MultiPro™ Tailgate
Sierra HD SLT Features
- 13.4-inch Diagonal Center Touchscreen and 12.3-inch Diagonal Driver Information Center
- Dual-zone Automatic Climate Control
- Available 10-Way Power-Adjustable Front Heated and Ventilated Bucket Seats With Perforated Leather Appointments
Sierra HD AT4 Features
- 13.4-inch Diagonal Center Touchscreen, 12.3-inch Diagonal Digital Driver Information Center, and Available Multicolor 15-inch Diagonal Head-Up Display With Off-Road Inclinometer
- Unique Jet Black Interior With Kalahari Accents and Heated and Ventilated Perforated Front Leather Seating Surfaces
- Standard 20-inch Gloss-Black Aluminum Wheels With Available BFGoodrich Off-Road Tires
- Off-Road Suspension Package With Twin-Tube Rancho® Shocks and Skid Plates
Sierra HD AT4X Features
- Multimatic™ DSSV Dampers
- Rear E-Locking Differential
- Heated and Ventilated 16-Way Power Front Seats With Massage Feature
- Obsidian Rush Interior Featuring Full-Grain Leather Seating With Technical-Grain Leather Accents and Authentic Vanta Ash Wood
- 12-Speaker Bose Premium Series With Centerpoint® Surround Sound
- 35-inch Goodyear® Territory MT Tires
- Factory-installed 1.5-inch Suspension Lift
- Larger Steel Transfer Case Skid Plate and Front Aluminum Skid Plate
Sierra HD Denali Features
- Standard 20-inch Ultra-Bright Machined Wheels With Bright Chrome Inserts (Single Rear Wheel Models Only)
- 13.4-inch Diagonal Center Touchscreen, 12.3-inch Diagonal Digital Driver Information Center, and Available Multicolor 15-inch Diagonal Head-Up Display
- Denali-Exclusive Authentic Open-Pore Wood, Patterned Aluminum Trim, and Forge Perforated Leather Seating Surfaces
Sierra HD Denali Ultimate Features
- Signature Denali Ultimate Vader Chrome Grille and Exclusive 20-inch Ultra-Bright Machined Aluminum Wheels With Gloss-Black Inserts (Single Rear Wheel Models Only)
- Ultimate Alpine Umber Interior Featuring Full-Grain Leather Seating, Authentic Open-Pore Paldao Wood, and 16-Way Power Front Seats With Massage Feature
- 12-Speaker Bose Premium Series With Centerpoint® Surround Sound
- Standard Illuminated Power Assist Steps and MultiPro Audio System by KICKER®
Meet the GMC Sierra HD Trims at Group 1 GMC Rockville Centre!
Do you want to harness the incredible GMC Sierra HD specs? Make your way to Group 1 GMC Rockville Centre, where you can test drive a new Sierra HD and talk with our finance team about buying options. We have ongoing new GMC specials to help you lock in a competitive deal, and we’ll give you a top-rate offer for your trade-in vehicle!
