New 2026 GMC Sierra 3500 HD for Sale in Granbury, TX

2026 GMC Sierra 3500 HD Highlights Near Fort Worth, TX

The 2026 GMC Sierra 3500 HD is designed for drivers who need a true heavy-duty pickup. It offers serious strength, premium available features, and smart towing tools that can make difficult jobs feel easier.

 2026 GMC Sierra 3500 HD Highlights:

• Starting MSRP of $47,900
• Up to 36,000 lbs of available towing
• Standard 6.6L V8 gas engine
• Available Duramax® 6.6L Turbo-Diesel V8 engine
• Allison® 10-speed automatic transmission

2026 GMC Sierra 3500 HD Engine Options Near Dallas, TX

Big jobs require dependable power. The 2026 GMC Sierra 3500 HD offers two strong engine options, giving shoppers a choice between proven gas strength and available diesel torque.

6.6L V8 Gas Engine

The standard 6.6L V8 gas engine gives the Sierra 3500 HD the strength needed for daily work, towing, and hauling.

Engine Specs:

• 401 horsepower
• 464 lb-ft of torque
• Allison® 10-speed automatic transmission
• Up to 19,080 lbs of max available towing
• 2WD or available 4WD

Duramax® 6.6L Turbo-Diesel V8 Engine

For shoppers who need maximum towing strength, the available Duramax® 6.6L Turbo-Diesel V8 engine is the top choice. 

Engine Specs:

• 470 horsepower
• 975 lb-ft of torque
• Allison® 10-speed automatic transmission
• Up to 36,000 lbs of max available towing
• 2WD or available 4WD

2026 GMC Sierra 3500 HD Towing Capacity Near Cleburne, TX

The 2026 GMC Sierra 3500 HD is built for serious trailering. When properly equipped, it can tow up to 36,000 lbs with the available diesel engine. That makes it a strong option for shoppers who need a heavy-duty truck for business, farm work, ranch work, travel trailers, or large recreational equipment.

2026 GMC Sierra 3500 HD Towing Highlights:

• Max available towing with gas engine: 19,080 lbs
• Max available towing with diesel engine: 36,000 lbs
• Available gooseneck and fifth-wheel capability
• Available conventional trailering capability
• Available Dual Rear Wheel configuration
• Available ProGrade® Trailering System
• Available Trailer Side Blind Zone Alert

2026 GMC Sierra 3500 HD Trim Levels Near Granbury, TX

The 2026 GMC Sierra HD lineup gives truck shoppers several trim options. Whether you want a hardworking truck, an off-road-ready pickup, or a luxury heavy-duty truck, there is a Sierra HD trim built for your needs. Explore the full lineup to find the right trim for your hauls near Granbury, Texas.

PRO

The PRO trim is a practical work truck with the strength needed for tough jobs.

Key features include:

• 6.6L V8 gas engine with Allison® 10-speed automatic transmission
• Trailering Package
• Trailering mirrors
• Trailer Brake Controller
• Wireless Apple CarPlay® & Android Auto™ compatibility

SLE

The SLE trim adds more technology and everyday convenience.

Key features include:

• 13.4-inch diagonal center touchscreen
• 12.3-inch diagonal digital Driver Information Center
• Traction Select System with Tow/Haul mode
• 17-inch machined aluminum wheels
• Available up to 13 camera views

SLT

The SLT trim adds more comfort, technology, and trailering convenience.

Key features include:

• 10-way power driver and front outboard passenger heated seats
• Heated steering wheel
• ProGrade® Trailering System with In-Vehicle Trailering App
• 18-inch machined aluminum wheels with dark gray metallic accents
• Available heated and ventilated front bucket seats
• Available MultiPro™ Tailgate

AT4

The AT4 trim is built for drivers who want off-road confidence in a heavy-duty truck.

Key features include:

• Exclusive Jet Black interior with Kalahari accents
• Heated and ventilated perforated front leather seating surfaces
• 20-inch gloss-black aluminum wheels
• Available BFGoodrich® off-road tires
• Off-Road Suspension Package with twin-tube Rancho® shocks
• Skid plates
• Up to 14 available camera views with HD Surround Vision
• Adaptive Cruise Control with trailering

AT4X

The AT4X takes off-road strength and premium comfort even further.

Key features include:

• Factory-installed 1.5-inch suspension lift
• Multimatic DSSV dampers
• Rear electronic-locking differential
• Larger steel transfer case skid plate
• Front aluminum skid plate
• 35-inch Goodyear Territory MT tires
• 16-way heated and ventilated power front seats with massage functionality
• Obsidian Rush interior with full-grain leather seating
• Available AT4X AEV Edition

Denali

The Denali trim brings signature GMC luxury to the heavy-duty truck segment.

Key features include:

• 20-inch Ultra-Bright machined aluminum wheels with chrome inserts
• Denali-exclusive authentic wood and patterned aluminum trim
• Forge perforated leather seating surfaces
• 12-way heated and ventilated power front seats
• Available Duramax® 6.6L Turbo-Diesel V8 engine
• Available power sunroof
• Available Rear Camera Mirror

Denali Ultimate

The Denali Ultimate is the most premium Sierra HD trim, offering high-end materials and advanced comfort.

Key features include:

• Standard Duramax® 6.6L Turbo-Diesel V8 engine
• Signature Vader Chrome grille
• Exclusive 20-inch Ultra-Bright machined aluminum wheels with gloss-black inserts
• Exclusive Alpine Umber interior
• Full-grain leather seating
• Authentic Paldao wood
• 16-way power front seats with massage functionality
• 12-speaker Bose® Premium Series with Centerpoint® surround sound
• Illuminated power assist steps
• MultiPro Tailgate Audio System by KICKER®

2026 GMC Sierra 3500 HD Interior and Technology

The 2026 GMC Sierra 3500 HD isn’t just built for hard work—it’s also designed to keep drivers informed, connected, and comfortable. A 13.4-inch diagonal touchscreen provides easy access to navigation, music, and more. With wireless Apple CarPlay® and Android Auto™, along with available Google built-in™ compatibility, you can customize your connectivity to fit your everyday needs.

Available Interior and Technology Highlights:

• 13.4-inch diagonal touchscreen
• 12.3-inch diagonal Driver Information Center
• Wireless Apple CarPlay® compatibility
• Wireless Android Auto™ compatibility
• Available Google built-in
• Available Bose® Premium Sound System

2026 GMC Sierra 3500 HD Exterior Features and Truck Bed

The Sierra 3500 HD delivers a bold, premium look paired with practical, work-ready capability. Its cargo bed is built to handle heavy-duty use, with available features that make loading, unloading, and trailer visibility easier. It also stands out with a refined exterior design and functional elements like available LED projector headlamps and available trailering mirrors, blending style with everyday utility.
Available exterior and bed features include:

• Best-in-class HD cargo bed volume
• Available MultiPro™ Tailgate
• Available LED projector headlamps
• Available trailering mirrors
• Available power-extension, retraction, and folding mirror features
• Available power-retractable assist steps

2026 GMC Sierra 3500 HD Safety and Driver Assistance Features

You deserve to stay confident whether on the town or on the haul. 

The 2026 GMC Sierra 3500 HD offers helpful safety and driver assistance features designed to deliver confidence on the road and while towing. From its Lane Departure Warning to the available Trailer Side Blind Zone Alert, the Sierra 3500 HD offers a comprehensive approach to truck safety. 

See how the 2026 Sierra 3500 HD keeps drivers confident near Fort Worth, Texas!

Standard and Available Safety Features:

• HD Rear Vision Camera
• Hitch Guidance
• Forward Collision Alert
• Lane Departure Warning
• Teen Driver
• Following Distance Indicator
• Automatic Emergency Braking
• Front Pedestrian Braking
• Available Trailer Side Blind Zone Alert
• Available Front and Rear Park Assist
• Available Safety Alert Seat
• Available Rear Cross Traffic Alert
• Available Lane Change Alert with Side Blind Zone Alert
• Available HD Surround Vision

FAQ – 2026 GMC Sierra 3500 HD

Have questions about the 2026 GMC Sierra 3500 HD? To make your shopping experience easier, we’ve answered some of the top questions about the new heavy-duty truck!

How much does the 2026 GMC Sierra 3500 HD cost?
The 2026 GMC Sierra 3500 HD starts at $47,900 MSRP.

How much can the 2026 GMC Sierra 3500 HD tow?
When properly equipped, the 2026 GMC Sierra 3500 HD can tow up to 36,000 lbs with the available Duramax® 6.6L Turbo-Diesel V8 engine.

What engines are available for the 2026 GMC Sierra 3500 HD?
The 2026 GMC Sierra 3500 HD offers a standard 6.6L V8 gas engine and an available Duramax® 6.6L Turbo-Diesel V8 engine.

How much horsepower does the 2026 GMC Sierra 3500 HD have?
The standard 6.6L V8 gas engine produces 401 horsepower. The available Duramax® 6.6L Turbo-Diesel V8 engine produces 470 horsepower.

How much torque does the 2026 GMC Sierra 3500 HD have?
The standard gas engine produces 464 lb-ft of torque. The available Duramax diesel engine produces 975 lb-ft of torque.

Does the 2026 GMC Sierra 3500 HD have 4WD?
Yes. The 2026 GMC Sierra 3500 HD is available with 4WD. It is also offered with 2WD on select configurations.

Does the 2026 GMC Sierra 3500 HD offer a dually configuration?
Yes. The Sierra 3500 HD is available with Single Rear Wheel and Dual Rear Wheel configurations on select models.

What trims are available for the 2026 GMC Sierra HD?
The 2026 GMC Sierra HD lineup includes PRO, SLE, SLT, AT4, AT4X, Denali, and Denali Ultimate trims.

Is the 2026 GMC Sierra 3500 HD good for towing fifth-wheel or gooseneck trailers?
Yes. The 2026 GMC Sierra 3500 HD is built for heavy-duty towing and offers available gooseneck and fifth-wheel capability.

Where can I test drive a 2026 GMC Sierra 3500 HD near Granbury, TX?
You can test drive the new 2026 GMC Sierra 3500 HD right here at Jerry's Buick GMC. Check out our new vehicle specials for a chance to save.

Test Drive the 2026 GMC Sierra 3500 HD in Granbury, TX

Ready to experience the new 2026 GMC Sierra 3500 HD near Granbury, Dallas, Fort Worth, Cleburne, and Stephenville? Visit Jerry Durant Buick GMC today!

Our Buick GMC dealership is proud to serve Texas drivers with a strong selection of new GMC vehicles, including heavy-duty Sierra HD models. We also offer used vehicles, trade-in assistance, and financing options to help make your truck-shopping experience easier.

Call Jerry Durant Buick GMC at (682) 260-6435 or visit us at 1909 E US Hwy 377, Granbury, Texas 76049, to shop for a new 2026 GMC Sierra 3500 HD.

DISCLAIMERS:
The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Click here to see all Chevrolet vehicles' destination freight charges. Dealer sets final price.
Requires available Duramax 6.6L Turbo-Diesel V8 engine.
Requires Silverado 3500 HD Regular Cab Long Bed WT 2WD DRW with available Duramax 6.6L Turbo-Diesel V8, Max Trailering Package and gooseneck hitch. Maximum trailering ratings are intended for comparison purposes only. Before you buy a vehicle or use it for trailering, carefully review the Trailering section of the Owner’s Manual. The trailering capacity of your specific vehicle may vary. The weight of passengers, cargo and options or accessories may reduce the amount you can trailer.
Based on latest available competitive data. Cargo and load capacity limited by weight and distribution.
Available at extra charge. Available on LT only.
App functionality and features vary with vehicle equipment and trim level. Data connection may be required. Some features require an active service plan and working electrical system. Terms and limitations apply.
Safety or driver assistance features are no substitute for the driver's responsibility to operate the vehicle in a safe manner. Read the vehicle Owner's Manual for important feature limitations and information.
Awards based on 2013-2022 models. Model year 2026 shown. Chevrolet Silverado HD has won more total awards than any other heavy-duty truck in the JD Power U.S. Vehicle Dependability Study from 2016-2025, measuring vehicle owners’ experiences after three years of ownership. Visit jdpower.com/awards for more details.
Safety or driver assistance features are no substitute for the driver's responsibility to operate the vehicle in a safe manner. The driver should remain attentive to traffic, surroundings and road conditions at all times. Visibility, weather, and road conditions may affect feature performance. Read the vehicle Owner's Manual for more important feature limitations and information.
Requires Silverado 3500 HD Regular Cab Long Bed WT 2WD with 6.6L gas engine and gooseneck hitch. Maximum trailering ratings are intended for comparison purposes only. Before you buy a vehicle or use it for trailering, carefully review the Trailering section of the Owner’s Manual. The trailering capacity of your specific vehicle may vary. The weight of passengers, cargo and options or accessories may reduce the amount you can trailer.
Requires Silverado 2500 HD Crew Cab Long Bed 2WD with available Duramax 6.6L Turbo-Diesel engine, Max Trailering Package and gooseneck/5th-wheel hitch, Maximum trailering ratings are intended for comparison purposes only. Before you buy a vehicle or use it for trailering, carefully review the Trailering section of the Owner’s Manual. The trailering capacity of your specific vehicle may vary. The weight of passengers, cargo and options or accessories may reduce the amount you can trailer.
Safety or driver assistance features are no substitute for the driver’s responsibility to operate the vehicle in a safe manner. The driver should remain attentive to traffic, surroundings and road conditions at all times. Visibility, weather and road conditions may affect feature performance. Read the vehicle Owner’s Manual for more important feature limitations and information. Some camera views require available accessory camera and installation. Not compatible with all trailers. See your dealer for details.
Safety or driver assistance features are no substitute for the driver’s responsibility to operate the vehicle in a safe manner. Read the vehicle Owner’s Manual for important feature limitations and information. Requires available accessory camera and installation. Not compatible with all trailers. See your dealer for details.
OnStar Basics is standard for 8 years; working electrical system, cell reception and GPS signal required. OnStar links to emergency services. Service coverage varies with conditions and location. Service availability, features and functionality vary by device and software version. Includes available audio apps only. Third-party services may require separate subscription. Subject to user terms. See onstar.com for details and limitations.
Vehicle user interface is a product of Apple®, and its terms and privacy statements apply. Requires compatible iPhone®, and data plan rates apply. Apple CarPlay®, Siri®, iPhone® and Apple Music® are trademarks of Apple Inc., registered in the U.S. and other countries.
Vehicle user interface is a product of Google, and its terms and privacy statements apply. Requires the Android Auto app on Google Play and a compatible Android™ smartphone. Data plan rates apply. You can check which smartphones are compatible at g.co/androidauto/requirements. Android and Android Auto are trademarks of Google LLC.  Wireless use of Android Auto requires a compatible Android 11.0+ phone and compatible active data plan. Check g.co/androidauto/requirements for compatibility.
Google built-in services are subject to limitations and availability may vary by vehicle, infotainment system, and location. Select service plan required. Certain Google Actions and functionality may require account linking. User terms and privacy statements apply. Google, Android Auto, Google Play and Google Maps are trademarks of Google LLC.
Google Assistant is not available in certain languages and countries. Requires Internet connection. Service availability, features and functionality are subject to limitations and vary by vehicle, device, location and active service plan. Device data connection is required. Google Actions require account linking to use. Lock/unlock feature requires automatic locks.  See onstar.com for details and limitations. Google, Google Home, Android, and other related marks and logos are trademarks of Google LLC.
Connected services vary by vehicle model and require active service plan, working electrical system, cell reception and GPS signal. Does not include safety services. Super Cruise vehicles are connected to emergency services. See onstar.com for details and limitations. Services vary by model. Service plan required.
On-Demand Diagnostics capabilities vary by model and plan. See onstar.com for details and limitations.
Available on select 2017 model year and newer GM vehicles with compatible hardware. Third-party trademarks are the property of their respective third-party owners and used under agreement. Requires active service plan. See onstar.com for details and limitations.
To avoid the risk of injury never use recovery hooks to tow a vehicle. See the Owner’s Manual for more information.
The Stars and Steel Collection represents a design theme with dark metallic finishes and celestial accents, not built of steel.
Assembled in Flint, Michigan of US and globally sourced parts.
These maximum payload ratings are intended for comparison purposes only. Before you buy a vehicle or use it to haul people or cargo, carefully review the Vehicle Loading section of the Owner’s Manual and check the carrying capacity of your specific vehicle on the label on the inside of the driver door jamb.
Based on latest available competitive data. Cargo and load capacity limited by weight and distribution.
Before you buy a vehicle or use it for trailering, carefully review the trailering section of the vehicle Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.