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New GMC Sierra 3500 HD Inventory in Layton, UT
Updated September 2026
Shop the New GMC Sierra 3500 HD at Young Buick GMC in Layton, UT
The GMC Sierra 3500 HD is GMC's one-ton pickup, built for fifth-wheel campers, gooseneck stock trailers, and heavy equipment. Every 2026 Sierra 3500 HD uses an Allison 10-speed automatic, with a standard 6.6L V8 gas engine or the available Duramax 6.6L Turbo-Diesel V8 rated at 470 horsepower and 975 lb-ft of torque. Properly equipped, it tows up to 36,000 pounds and carries up to 7,290 pounds of payload. The 2026 Sierra 3500 HD starts at $48,200 MSRP.
The lineup runs from the work-ready Pro to the SLE, SLT, off-road AT4, Denali, and top Denali Ultimate, in Regular, Double, and Crew Cab body styles with single or dual rear wheels. Browse our current Sierra 3500 HD inventory above, or ask our team about incoming and ordered trucks if you don't see the configuration you need.
Truck buyers from Layton, Kaysville, Clearfield, Syracuse, Roy, Ogden, Bountiful, and across Davis and Weber counties visit Young Buick GMC at 570 N Main St in Layton for competitive pricing, flexible financing, and a team that can match the right axle, bed, and hitch setup to your trailer.
2026 GMC Sierra 3500 HD Trims and Prices
Every 2026 Sierra 3500 HD comes with the Allison 10-speed automatic, a trailering package with trailering mirrors, and an integrated trailer brake controller. The Pro offers 2WD or 4WD, and SLE and above come standard with 4WD. The Duramax diesel is available on every trim and standard on the Denali Ultimate.
| Trim | Starting MSRP | Highlights |
|---|---|---|
| Pro | $48,200 | 6.6L V8 gas engine, trailering package with trailering mirrors and trailer brake controller, wireless Apple CarPlay and Android Auto, Regular, Double, or Crew Cab, 2WD or 4WD |
| SLE | $55,200 | Adds a 13.4-inch touchscreen, a 12.3-inch digital Driver Information Center, Traction Select with Tow/Haul mode, aluminum wheels, and standard 4WD |
| SLT | $66,400 | Adds 10-way power heated front seats with lumbar, a heated steering wheel, the ProGrade Trailering System with In-Vehicle Trailering App, and an Autotrac two-speed active transfer case |
| AT4 | $73,400 | Adds an off-road suspension with twin-tube Rancho shocks and skid plates, 20-inch gloss-black wheels, a Jet Black interior with heated and ventilated leather front seats, HD Surround Vision, and Adaptive Cruise Control with trailering (Crew Cab, single rear wheel) |
| Denali | $76,300 | Adds 20-inch Ultra-Bright machined wheels, Denali-exclusive wood and aluminum trim, Forge perforated leather, and 12-way heated and ventilated front seats |
| Denali Ultimate | $97,600 | Adds the standard Duramax diesel, an Alpine Umber interior with full-grain leather and 16-way massaging front seats, a 12-speaker Bose system, a head-up display, a power sunroof, and illuminated power assist steps |
GMC MSRPs as of September 2026 for the lowest-priced pickup configuration of each trim, excluding the $2,795 destination freight charge, tax, title, and license. The Duramax diesel is a $9,990 option on Pro through Denali. Prices, features, and availability can change. Ask our team to confirm pricing and equipment on any truck in stock.
2027 GMC Sierra 3500 HD: What's Coming
GM revealed the updated 2027 Sierra HD in September 2026, and GMC says it's expected to be available in late 2026. The headline is an all-new Duramax 8.3L Turbo-Diesel V8 rated at 555 horsepower and 1,230 lb-ft of torque, plus an enhanced 6.6L V8 gas engine rated at 412 horsepower and 472 lb-ft. GMC lists a maximum available towing rating of up to 38,000 pounds for the 2027 Sierra 3500 HD.
The 2027 trucks also switch to electric power steering and an electronic brake-boost system GMC calls eBoost, and Adaptive Cruise Control with trailering capability is listed on the Pro. GMC hasn't announced 2027 pricing yet. The 2026 Sierra 3500 HD is proven and available now, and our team can help you compare it with the 2027 or get on the list for an incoming truck.
Gas or Duramax Diesel
The 2026 Sierra 3500 HD offers two V8 engines, both paired with the Allison 10-speed automatic.
36,000 lbs
Max available towing, properly equipped
Built for big trailers
The top rating calls for the Duramax, dual rear wheels, and a gooseneck or fifth-wheel hitch, so talk with our team about the right setup for your trailer.
975 lb-ft
Duramax 6.6L Turbo-Diesel V8 torque
Duramax diesel
470 horsepower and 975 lb-ft of torque for steady pulling on long grades, plus 5-year/100,000-mile powertrain coverage.
7,290 lbs
Max available payload, properly equipped
Standard 6.6L V8 gas
The standard gas V8 keeps the purchase price lower and suits buyers who haul heavy loads more than they tow at maximum weight.
Sierra 3500 HD vs. Ram 3500 vs. Ford F-350
These three one-ton pickups are the most cross-shopped heavy-duty trucks in Northern Utah. Here's how the 2026 models compare on the numbers GMC, Ram, and Ford publish.
| 2026 GMC Sierra 3500 HD | 2026 Ram 3500 | 2026 Ford F-350 | |
|---|---|---|---|
| Standard engine | 6.6L V8 gas, 464 lb-ft | 6.4L HEMI V8 gas, 429 lb-ft | 6.8L V8 gas, 445 lb-ft |
| Top diesel | Duramax 6.6L V8, 470 hp, 975 lb-ft | High-Output Cummins 6.7L I6, 430 hp, 1,075 lb-ft | High-Output Power Stroke 6.7L V8, 500 hp, 1,200 lb-ft |
| Transmission | Allison 10-speed automatic | 8-speed automatic | 10-speed automatic |
| Max towing | 36,000 lbs | 36,610 lbs | 38,000 lbs |
| Max payload | 7,290 lbs | 7,590 lbs | 8,000 lbs |
| Dual rear wheels | Available | Available | Available |
On paper, the 2026 Ford F-350 leads on diesel output, towing, and payload, and the Ram 3500 edges the Sierra on towing, payload, and diesel torque, with a 10-year/100,000-mile powertrain warranty on select 2026 Ram trucks. The Sierra 3500 HD answers with the most torque from a standard gas engine of the three, the Allison 10-speed, up to 14 available camera views including a transparent trailer view, and the Denali Ultimate's interior. The 2027 Sierra HD raises max towing to 38,000 pounds. Figures from each manufacturer as of September 2026, for properly equipped configurations, and can vary by cab, bed, axle, and package.
Trailering Tech and Safety
Every Sierra 3500 HD is set up to tow from the factory, and the upper trims add tools that make hitching and backing easier.
- Standard: trailering package, trailering mirrors, an integrated trailer brake controller, and Sierra HD Pro Safety driver assistance features
- Standard on SLE and above: Traction Select with Tow/Haul mode
- Standard on SLT and above: the ProGrade Trailering System with the In-Vehicle Trailering App
- Available: up to 14 camera views including a transparent trailer view, Adaptive Cruise Control with trailering, an auxiliary trailer camera, and a gooseneck/fifth-wheel prep package
Cabs, Beds, and Warranty
Choose a Regular, Double, or Crew Cab with an 8-foot long bed, or a Crew Cab with a 6-foot-9-inch standard bed, plus single or dual rear wheels on most configurations. Curb weight ranges from about 6,329 to 8,666 pounds depending on configuration.
GMC backs the Sierra 3500 HD with a 3-year/36,000-mile bumper-to-bumper limited warranty and a 5-year/60,000-mile powertrain limited warranty. Trucks with the 6.6L Duramax get 5-year/100,000-mile powertrain coverage and Roadside Assistance, and rust-through protection runs 6 years/100,000 miles, whichever comes first in each case. See Young Buick GMC for complete warranty details.
Towing with a Sierra 3500 HD in Northern Utah
Utah trailering means long grades. Pulling a fifth-wheel up I-84 through Weber Canyon, over Parleys Summit on I-80, or out to Bear Lake on US-89 puts steady load on the engine, transmission, and brakes, which is where the Duramax's torque, the Allison 10-speed, and Tow/Haul mode earn their keep. Duallies add stability with heavy gooseneck and fifth-wheel trailers, while a single rear wheel truck is easier to park and daily drive around Layton.
For winter, 4WD is standard on SLE and above, and the Autotrac two-speed active transfer case on SLT and above adds an automatic 4WD mode for mixed snow and dry pavement. An engine block heater is available on every trim and standard on the Denali Ultimate. If you don't tow at one-ton weights, our team can also show you the GMC Sierra 2500 HD or the GMC Sierra 1500.
Why Buy Your Sierra 3500 HD from Young Buick GMC
Young Buick GMC is part of Young Automotive Group, a family-owned dealer group that has served Utah drivers for decades. When you shop with us, you get a transparent buying experience and a team that knows heavy-duty trucks.
- Current Sierra 3500 HD inventory, plus help locating, reserving, or ordering the cab, bed, engine, and rear wheel setup you need
- Financing and lease options for a wide range of credit situations
- Trade-in appraisals on any make or model, including your current truck or trailer rig
- Factory-trained GMC technicians in our on-site service center
Compare Other GMC Trucks
Still deciding? Explore more of the GMC truck lineup at Young Buick GMC in Layton.
- New GMC Sierra 2500 HD, for three-quarter-ton towing and hauling
- New GMC Sierra 1500, for a half-ton daily driver
- New GMC Sierra 3500 HD Chassis Cab, for upfits and work bodies
- All new GMC and Buick inventory
GMC Sierra 3500 HD FAQs
How much does a new GMC Sierra 3500 HD cost?
The 2026 Sierra 3500 HD starts at $48,200 MSRP for the Pro. The SLE starts at $55,200, the SLT at $66,400, the AT4 at $73,400, the Denali at $76,300, and the Denali Ultimate at $97,600. These are GMC MSRPs as of September 2026 for the lowest-priced pickup configuration of each trim, excluding the $2,795 destination freight charge, tax, title, and license. The Duramax diesel is a $9,990 option on Pro through Denali and standard on the Denali Ultimate. Contact Young Buick GMC for current pricing and offers.
What gas mileage does the Sierra 3500 HD get?
The EPA doesn't publish fuel economy ratings for heavy-duty pickups in the Sierra 3500 HD's class, so GMC doesn't list an official MPG. Real-world mileage depends heavily on engine, axle ratio, payload, and trailer weight. Our team can walk you through the gas and Duramax diesel options based on how much and how often you tow.
Does the Sierra 3500 HD have 4WD, and which trim is best for Utah winters?
Yes. 4WD is available on the Pro and standard on the SLE, SLT, AT4, Denali, and Denali Ultimate. For Utah winters, the SLT is a strong choice, adding heated front seats, a heated steering wheel, and an Autotrac two-speed active transfer case with an automatic 4WD mode. The AT4 adds an off-road suspension and skid plates for snowy trailheads, and an engine block heater is available on every trim. Dedicated winter tires make a big difference on any truck.
Should I get the gas V8 or the Duramax diesel?
The standard 6.6L V8 gas engine keeps the price lower and works well if you haul heavy loads or tow moderate trailers. The Duramax 6.6L Turbo-Diesel V8 makes 470 horsepower and 975 lb-ft of torque, is required for the highest tow ratings, and adds 5-year/100,000-mile powertrain coverage. It's a $9,990 option on most trims. If you regularly pull a large fifth-wheel or gooseneck trailer over Utah mountain passes, the Duramax is usually worth it.
What warranty comes with the Sierra 3500 HD?
GMC covers the Sierra 3500 HD with a 3-year/36,000-mile bumper-to-bumper limited warranty and a 5-year/60,000-mile powertrain limited warranty. Trucks with the 6.6L Duramax diesel get 5-year/100,000-mile powertrain coverage and Roadside Assistance, and rust-through protection lasts 6 years/100,000 miles, whichever comes first. See the GMC warranty booklet or Young Buick GMC for complete terms.
How does the Sierra 3500 HD compare to the Ram 3500 and Ford F-350?
On 2026 manufacturer figures, the Ford F-350 leads with up to 38,000 pounds of towing, 8,000 pounds of payload, and a 500-horsepower, 1,200 lb-ft diesel. The Ram 3500 tows up to 36,610 pounds, carries up to 7,590 pounds, and offers a 10-year/100,000-mile powertrain warranty on select 2026 models. The Sierra 3500 HD tows up to 36,000 pounds and stands out with the most torque from a standard gas engine of the three, the Allison 10-speed, up to 14 camera views, and the Denali Ultimate's interior.
When is the 2027 Sierra 3500 HD coming?
GM revealed the 2027 Sierra HD in September 2026, and GMC says it's expected to be available in late 2026. It adds an all-new Duramax 8.3L Turbo-Diesel V8 with 555 horsepower and 1,230 lb-ft of torque, an enhanced 412-horsepower gas V8, and up to 38,000 pounds of towing on the 3500 HD. GMC hasn't announced pricing yet. Contact Young Buick GMC to be notified when it arrives.
Can I test drive a Sierra 3500 HD at Young Buick GMC?
Yes. Choose any Sierra 3500 HD from our inventory above and schedule a test drive online, or stop by Young Buick GMC at 570 N Main St in Layton. Our team can have the trim and configuration you want ready when you arrive.
Find Your New GMC Sierra 3500 HD Today
Whether you need a Pro work truck, a Duramax dually for your fifth-wheel, or a Denali Ultimate that tows in comfort, there's a Sierra 3500 HD for you at Young Buick GMC. Browse our inventory, apply for financing, or value your trade to get started.