2026 GMC Sierra 2500 HD Trim Levels, Pricing, and Engine Options in Waxahachie, TX
The 2026 GMC Sierra 2500 HD delivers heavy-duty capability across seven distinct trim levels, giving drivers near Waxahachie, TX, a clear path from work-ready utility to premium luxury. Whether you need a dependable workhorse for the job site or a refined hauler for weekend adventures, the Sierra 2500 HD lineup offers a configuration built for your priorities. Explore the full lineup at Legacy GMC of Waxahachie to find the right fit.
2026 Sierra 2500 HD Trim Overview and Pricing
The 2026 Sierra 2500 HD is available in seven trims: Pro, SLE, SLT, AT4, AT4X, Denali, and Denali Ultimate. Each trim is built on the same heavy-duty platform but targets a different balance of capability, comfort, and features. The Pro is the only trim offering a rear-wheel-drive option — all other trims come standard with four-wheel drive.
| Trim | Starting MSRP | Drivetrain | Wheels | Seating | Key Differentiator |
|---|---|---|---|---|---|
| Pro | $47,000 | RWD or 4WD | 17″ Steel | Vinyl | Work-ready essentials |
| SLE | $53,500 | 4WD | 17″ Machined Aluminum | Cloth | Modern tech upgrade |
| SLT | $64,700 | 4WD | 18″ Machined Aluminum | Leather-Appointed | Comfort + trailering tech |
| AT4 | $71,600 | 4WD | 20″ Gloss-Black Aluminum | Heated/Ventilated Leather | Off-road suspension |
| AT4X | $83,700 | 4WD | 18″ with 35″ M/T Tires | Leather with Massage | Extreme off-road hardware |
| Denali | $75,000 | 4WD | 20″ Ultra-Bright Machined | Forge Perforated Leather | Premium luxury |
| Denali Ultimate | $93,800 | 4WD | 20″ Exclusive Ultra-Bright | Full-Grain Leather + Massage | Flagship luxury + technology |
Trim-by-Trim Breakdown
Pro
The Pro serves as the foundation of the lineup. Built around durability and essential capability, it comes equipped with the standard 6.6-liter V8 engine, a 7-inch color infotainment touchscreen with wireless Apple CarPlay and Android Auto, trailer hitch guidance, a trailer brake controller, and an HD rear camera. The Pro also offers best-in-class cargo bed volume, making it ideal for commercial users and drivers around Ennis, TX, who prioritize function over luxury.
SLE
The SLE builds on the Pro’s foundation with a significant technology upgrade, starting at $53,500. This trim adds the 13.4-inch touchscreen with Google Built-In, a 12.3-inch digital gauge cluster, remote start, LED cargo bed lighting, deep-tinted glass, and the Traction Select System with Tow/Haul mode. The SLE strikes a strong balance between modern connectivity and heavy-duty capability at a competitive price.
SLT
Starting at $64,700, the SLT is where the Sierra 2500 HD begins to feel genuinely refined. Standard features include 10-way power heated front seats with leather-appointed upholstery, a heated steering wheel, dual-zone automatic climate control, the ProGrade Trailering System with In-Vehicle Trailering App, and 18-inch machined aluminum wheels. For 2026, the GMC MultiPro Tailgate is now available as an option on the SLT Crew Cab — it is standard on AT4 and above. An available SLT Convenience package adds ventilated front seats, a seven-speaker Bose premium audio system, wireless charging, and bucket seats with a center console. For drivers around Midlothian, TX, the SLT offers an appealing middle ground between capability and daily comfort.
AT4
The AT4, starting at $71,600, brings a rugged off-road focus to the heavy-duty lineup. Standard equipment includes the Off-Road Suspension Package with twin-tube Rancho shocks and skid plates, exclusive 20-inch gloss-black aluminum wheels, all-terrain tires, heated and ventilated perforated leather front seats in an exclusive Jet Black interior with Kalahari accents, the MultiPro Tailgate, and up to 14 camera views with HD Surround Vision. The AT4 is designed for drivers who split time between demanding job sites and unpaved terrain.
AT4X
For maximum off-road hardware, the AT4X starts at $83,700. It builds on the AT4 with factory-installed Multimatic DSSV dampers, a 1.5-inch suspension lift, front and rear electronic-locking differentials, 35-inch mud-terrain tires, and 16-way power front seats with massage. The available AT4X AEV Edition adds stamped steel bumpers and specialized skid plates for the most capable Sierra 2500 HD available.
Denali
The Denali, starting at $75,000, shifts the Sierra into luxury territory with Forge perforated leather seating, authentic open-pore wood and patterned aluminum trim, 20-inch Ultra-Bright machined aluminum wheels, a seven-speaker Bose premium audio system, power assist steps, and 12-way heated and ventilated front seats. The Denali also includes HD Surround Vision and serves equally well as a refined daily driver and a work truck for drivers near DeSoto, TX.
Denali Ultimate
At the pinnacle of the lineup, the Denali Ultimate starts at $93,800 and includes the Duramax diesel as standard equipment. The cabin features full-grain leather in an exclusive Alpine Umber interior, authentic open-pore Paldao wood, 16-way power front seats with heating, ventilation, and massage, a microsuede headliner, power sunroof, and a 12-speaker Bose Premium Series audio system with CenterPoint. A 15-inch multicolor head-up display and power-retractable assist steps complete the flagship experience.
Engine Options and Performance
The 2026 Sierra 2500 HD offers two proven powertrains designed for heavy-duty work. Both engines are paired with the Allison 10-speed automatic transmission, which features closely spaced ratios, Tow/Haul mode, and Auto Grade Braking for confident control when towing on hills.
| Specification | 6.6L V8 Gas (L8T) | 6.6L Duramax Turbo-Diesel V8 |
|---|---|---|
| Horsepower | 401 hp | 470 hp |
| Torque | 464 lb-ft | 975 lb-ft |
| Transmission | Allison 10-Speed Automatic | Allison 10-Speed Automatic |
| Availability | Standard on Pro through Denali | Standard on Denali Ultimate; available on all other trims |
| Est. Fuel Economy | ~14 city / ~19 hwy mpg | ~17 city / ~23 hwy mpg |
| Best For | Daily driving, moderate towing, lower purchase price | Heavy towing, sustained loads, long-haul efficiency |
Note: The EPA does not provide official fuel economy ratings for heavy-duty trucks. Estimates above are based on reported averages from automotive outlets and may vary based on load, terrain, and driving conditions.
Towing and Payload Capacity
Towing capacity varies by engine, cab configuration, bed length, and hitch type. The table below shows maximum ratings for the Sierra 2500 HD Crew Cab when properly equipped with the Max Trailering Package.
| Configuration | 6.6L V8 Gas | 6.6L Duramax Diesel |
|---|---|---|
| Max Conventional Towing (Crew Cab) | 16,000 lbs | 20,000 lbs |
| Max Gooseneck/Fifth-Wheel (Crew Cab) | 18,500 lbs | 21,870 lbs |
| Max Towing (All Configurations) | — | Up to 22,390 lbs |
| Max Payload | Up to 3,759 lbs (varies by configuration) | |
The Sierra 2500 HD’s available ProGrade Trailering System offers up to 14 camera views — including hitch guidance, transparent trailer view, and bed-view camera — along with an integrated In-Vehicle Trailering App for managing trailer profiles and pre-departure checklists. For a deeper look at towing specs, see our 2026 GMC Sierra 2500 HD towing capacity guide.
Standard Safety and Driver-Assistance Technology
Every 2026 Sierra 2500 HD includes forward collision alert, automatic emergency braking, front pedestrian braking, lane departure warning, automatic high beams, a rear-vision camera, and Buckle to Drive. Available features on higher trims include blind-spot monitoring with rear cross-traffic alert, adaptive cruise control, parking sensors, and HD Surround Vision with up to 14 camera views.
Explore the 2026 Sierra 2500 HD at Legacy GMC of Waxahachie
Understanding the differences between all seven trim levels helps you match the right combination of features, performance, and value to your specific needs — whether that means daily driving near Arlington, heavy towing around Corsicana, TX, off-road capability, or all three. Browse our new GMC Sierra HD inventory to see available models, or call our sales team at 214-903-4359 to discuss which trim and configuration fits your requirements.
You can also apply for financing to get started or value your current trade-in toward your next Sierra 2500 HD. Visit Legacy GMC of Waxahachie at 1701 Us-287 Byp, Waxahachie, TX 75165, to experience the full 2026 Sierra 2500 HD lineup in person.