DIFFERENCE
Just Announced — June 25, 2026
GMC › Sierra 1500
2027 GMC Sierra 1500: Everything We Know So Far
2027 GMC Sierra 1500 Denali Ultimate — arriving at Wheelers GMC before the end of 2026
GMC officially revealed the 2027 Sierra 1500 on June 25, 2026. The next-generation truck introduces two new sixth-gen Small Block V8 engines (5.7L and 6.6L), a fully redesigned interior, and the most digital content in the class on Denali Ultimate. First models arrive at Wheelers GMC in Marshfield and Wisconsin Rapids before the end of 2026.
The 2027 GMC Sierra 1500 is official. GMC lifted the embargo this morning on what it’s calling the most advanced, luxurious, and powerful Sierra ever built. For Central Wisconsin truck buyers in Marshfield, Wisconsin Rapids, and the surrounding area, this is the next full-size GMC pickup — and it’s a significant step forward from the current generation.
The headline changes are a pair of all-new sixth-generation Small Block V8 engines, a ground-up interior redesign, and a technology stack on Denali Ultimate that sets a new benchmark for the class. This isn’t a mid-cycle refresh. GMC describes it as one of the most rigorous engineering development programs the company has ever executed.
We’re covering everything GMC has confirmed as of today’s announcement. More specs — including full towing ratings, fuel economy figures, and MSRP pricing — will be released ahead of the on-sale date. See current Sierra 1500 inventory at Wheelers GMC while you wait →
- Revealed:
- June 25, 2026
- Expected Arrival:
- Before end of 2026 calendar year
- Engine Options:
- 5.7L V8, 6.6L V8, TurboMax, Duramax Diesel
- Transmission:
- 10-speed automatic (all engines)
- Flagship Trim:
- Denali Ultimate (standard 6.6L V8)
- Off-Road Trim:
- AT4X with 35″ tires, 2″ lift, front/rear e-lockers
- Available At:
- Wheelers GMC — Marshfield & Wisconsin Rapids, WI
Generation Small Block V8
Source: GMC Press Release, June 2026
Combined digital displays — Denali Ultimate
Source: GMC Press Release, June 2026
Miles of Super Cruise compatible roads
Source: GMC Press Release, June 2026
Goodyear MT tires — AT4X (Sierra first)
Source: GMC Press Release, June 2026
The full 2027 GMC Sierra 1500 lineup: Pro, Elevation, AT4, AT4X, Denali, and Denali Ultimate
What GMC Just Announced
GMC officially revealed the next-generation 2027 Sierra 1500 on June 25, 2026. The truck introduces a fully redesigned exterior and interior, two new sixth-generation Small Block V8 engines, and the most digital content GMC has ever put in a pickup. First deliveries are expected before the end of 2026.
GMC’s announcement today covers the major pillars of the redesign: powertrain, design, and technology. The company is positioning the 2027 Sierra as “the truck all others will be measured against” — a direct shot at the Ford F-150 and Ram 1500 in a segment that remains intensely competitive.
What makes this announcement different from a typical model-year update is the scope of change. Two all-new V8 engines. A ground-up interior redesign across every trim level. Class-first technology on Denali Ultimate. And an AT4X package that GMC says is the most capable Sierra AT4X ever built. Full specs — including towing ratings, payload capacity, and MSRP pricing — will be released closer to the on-sale date.
“When a full-generation Sierra redesign gets announced, the first question we hear from Central Wisconsin customers is about the V8. Towing, hauling, dependability — that’s what our market runs on. The fact that GMC is leading with two new Small Block V8 engines tells you exactly what direction they’re taking this truck. This isn’t an EV pivot. This is a premium gas truck built for people who actually work and recreate with their pickup.”
New V8 Engines and Powertrain Lineup
The 2027 Sierra 1500 offers four engines: a new 5.7L Small Block V8, a new 6.6L Small Block V8 (standard on Denali Ultimate and the most powerful naturally aspirated V8 in its class), an enhanced TurboMax four-cylinder with best-in-class standard torque, and a class-exclusive Duramax diesel. All pair with a 10-speed automatic.
The powertrain story on the 2027 Sierra 1500 is the sixth-generation Small Block V8. These are not updated versions of the existing engines — GMC is calling them all-new, with advances in combustion, cooling, and control systems. The new fuel injection system is specifically engineered to optimize power and torque across the full range of use cases, from daily commuting to rock crawling to heavy towing.
The 5.7L V8 is the mid-lineup engine choice. The 6.6L V8 slots in as the flagship powertrain and comes standard on Denali Ultimate, where GMC claims it delivers the most power of any naturally aspirated V8 in the full-size half-ton class. Detailed output figures haven’t been released yet — those will come with the full spec sheet closer to launch.
The TurboMax four-cylinder carries forward with enhancements and retains its position as the best-in-class standard torque engine in the segment. The class-exclusive Duramax diesel rounds out the lineup for buyers who prioritize fuel economy and long-distance towing efficiency. Every engine pairs with the same 10-speed automatic transmission.
| Engine | Displacement | Key Claim | Notes |
|---|---|---|---|
| 6.6L Small Block V8 | 6.6L | Most powerful naturally aspirated V8 in class | Standard on Denali Ultimate |
| 5.7L Small Block V8 | 5.7L | New 6th-generation architecture | Mid-lineup option |
| TurboMax | 2.7L Turbo (enhanced) | Best-in-class standard torque | Available across lineup |
| Duramax Diesel | [VERIFY displacement] | Class-exclusive diesel option | Best for long-haul towing |
Full output specs (hp/torque) to be released by GMC ahead of on-sale date. Based on latest competitive data. Excludes other GM vehicles.
Exterior and Interior Design
The 2027 Sierra 1500 features an all-new exterior with a more vertical grille, available quad exhaust outlets, signature headlamp and taillamp animations, and a more powerful road stance. Inside, every trim gets a fully redesigned cabin with exclusive colorways, available real wood trim, panoramic sunroof availability, and best-in-class standard crew cab front head and leg room.
The exterior design language GMC is calling “machine precision forms” — sharper, more vertical lines with a stronger road presence. Signature elements include evolved headlamps and taillamps with available welcome and farewell light animations, GMC’s WOM (Walking On Mars) lighting signature, a more upright grille, and available quad exhaust outlets. The overall stance reads more purposeful than the outgoing generation.
Inside is where the redesign has the most visible impact for buyers. GMC completely redesigned every trim level’s interior — not just the top of the lineup. Exclusive colorways, premium materials, and “Sierra-first” innovations appear across the board. Standard crew cab front head room and leg room are best-in-class. Available panoramic sunroof. Available real wood trim accents, with forged wood appearing on Denali Ultimate.
The all-new MultiPro center console is a standout practical feature. It opens to create an extended work surface and provides access to USB charging ports without disrupting the clean cabin appearance. It’s a small detail, but it reflects how much GMC has thought about how Central Wisconsin contractors and professionals actually use their trucks day-to-day.
“Interior quality is something our Marshfield and Wisconsin Rapids customers have been asking more and more about — especially buyers cross-shopping Sierra against the F-150. The current generation interior is good, but Denali Ultimate buyers in particular want to feel like they’re in a premium vehicle. What GMC is describing with the 16-speaker Bose system, forged wood trim, and 60-plus inches of displays is a legitimate step into near-luxury territory without losing the truck capability underneath.”
The 2027 Denali Ultimate cabin features over 60 inches of combined digital displays, including a 15-inch multicolor Head Up Display
Trim Levels: What We Know So Far
The full 2027 Sierra 1500 lineup includes Pro, Elevation, AT4, AT4X, Denali, and Denali Ultimate. Each trim is engineered around a distinct use case. GMC has confirmed an AEV Edition package will continue on the AT4X for buyers who want to go further off-road. Full pricing and specs per trim will be released ahead of the on-sale date.
| Trim | Best For | Key Standard Features | Pricing |
|---|---|---|---|
| Pro | Work truck, base capability | New exterior, 10-speed auto, TurboMax or V8 | [VERIFY MSRP] |
| Elevation | Style and value | Blacked-out exterior elements, interior upgrades | [VERIFY MSRP] |
| AT4 | Light off-road, capable daily | Off-road suspension, skid plates, all-terrain tires | [VERIFY MSRP] |
| AT4X | Serious off-road | 35″ MT tires, 2″ lift, front/rear e-lockers, Multimatic dampers | [VERIFY MSRP] |
| Denali | Premium daily driver | Premium interior, tech upgrades, V8 available | [VERIFY MSRP] |
| Denali Ultimate | Flagship luxury + performance | Standard 6.6L V8, 60″+ displays, Super Cruise, Bose 16-speaker | [VERIFY MSRP] |
Pricing to be confirmed by GMC ahead of the on-sale date. Contact Wheelers GMC in Marshfield (715-387-1200) or Wisconsin Rapids for availability updates.
View current Sierra 1500 inventory at Wheelers GMC while you plan your 2027 purchase →
Denali Ultimate: The Flagship Package
The 2027 Denali Ultimate is the top-of-the-line Sierra 1500. It comes standard with the 6.6L V8 — the most powerful naturally aspirated V8 in its class — over 60 inches of digital displays, a 16-speaker Bose audio system with class-exclusive head restraint speakers, forged wood trim, and a standard three-year Super Cruise subscription with trailering capability.
Denali Ultimate is where GMC has pushed hardest on the 2027 Sierra 1500. The digital interior alone is a class statement: a 16.3-inch infotainment screen (largest in class) with class-exclusive articulation and hidden storage behind the display, an 11.5-inch front passenger screen (largest in class), a 12.2-inch Driver Information Center, a 15-inch multicolor Head Up Display, and an 8.5-inch Rear Camera Mirror. That’s 60-plus inches of combined displays — more than any competing full-size half-ton.
Super Cruise comes standard with a three-year subscription. On the 2027 Sierra, it covers hands-free driving on over 600,000 miles of compatible roads including when towing — the only system in the class to offer trailering-capable hands-free driving as standard equipment. Automatic Lane Change and Turn Signal Initiated Lane Change are also supported.
The Bose Premium Series audio system with 16 speakers includes class-exclusive front head restraint mounted speakers, tuned specifically for the Sierra cabin. Forged wood trim (not standard wood veneer) and exclusive colorways complete the premium interior statement.
If you’re cross-shopping the top trim of a Ram 1500 or F-150, the 2027 Denali Ultimate is built to win that conversation outright. The tech stack — 60-plus inches of displays, Super Cruise standard with trailering capability, Bose head restraint audio — isn’t available at any price in competing trucks. For Central Wisconsin buyers who want a premium daily driver that can also tow a boat to Rhinelander or haul a gooseneck through Wausau, this is the truck.
The 2027 Denali Ultimate includes Super Cruise with trailering capability — hands-free towing on 600,000+ miles of compatible roads
AT4X: The Off-Road Package
The 2027 Sierra 1500 AT4X is the most capable Sierra AT4X ever built. It rides on 35-inch Goodyear Wrangler Territory MT tires (a Sierra first) with a 2-inch suspension lift, Multimatic Jounce Control Dampers, and class-exclusive front and rear electronic locking differentials. Inside, it gets an exclusive Timber Mahogany colorway, enhanced bolstered seats, flat-bottom steering wheel, and standard panoramic sunroof.
GMC has always positioned AT4X as the Sierra for buyers who actually go off-road rather than just look the part. The 2027 version raises the ceiling considerably. The 35-inch Goodyear Wrangler Territory MT tires are a Sierra first — fitted from the factory, not as an aftermarket modification. The Multimatic Jounce Control Dampers are the same technology used in purpose-built off-road vehicles, tuned here to handle high-speed terrain impacts while keeping the truck composed and controlled.
The front and rear electronic locking differentials are the differentiating spec. No competing full-size half-ton offers this combination from the factory. Combined with the available drive modes, the 2027 AT4X can optimize traction across mud, sand, rock, and snow in ways that an open differential setup simply can’t match.
The AEV Edition package continues on the 2027 AT4X for buyers who want to push even further off-road with factory-backed modifications. Full AEV package details will be released with the complete lineup reveal.
The 2027 AT4X is built for Wisconsin buyers who use their truck year-round across serious terrain — snowmobile season in the Northwoods, camping and ATV access roads in the fall, gravel and two-track in the spring. If your off-road use is mostly highway with light gravel, the standard AT4 delivers 80% of the capability at a lower price point. If you’re genuinely pushing the truck on challenging surfaces, the AT4X’s e-lockers and Multimatic dampers justify the premium.
“AT4X buyers in our market are a specific customer — they’re not buying it for looks. They’re buying it because they actually run trails, they go up north in November, they haul campers into forest roads. The 35-inch tires from the factory and the front-and-rear e-locker combination is exactly what that customer has been asking for. No other truck in the half-ton class offers that combination standard.”
AT4X interior — exclusive Timber Mahogany colorway, enhanced seat bolstering, sport flat-bottom steering wheel
2027 Sierra 1500 Elevation — blacked-out exterior styling at a value-focused price point
When It Arrives and How to Get One
The first 2027 GMC Sierra 1500 models are expected to arrive at GMC dealerships before the end of the 2026 calendar year. Wheelers GMC in Marshfield and Wisconsin Rapids will receive inventory as it becomes available. Call 715-387-1200 (Marshfield) or contact Wisconsin Rapids to get on the notification list now.
GMC hasn’t released a specific on-sale date or launch window beyond “before the end of 2026.” Based on typical GM launch patterns for next-generation trucks, expect availability to build gradually through late 2026, with higher trims like Denali Ultimate potentially arriving in the initial waves and base trims following shortly after.
There’s no formal pre-order system in place yet. The most practical step right now is to contact Wheelers GMC directly and ask to be added to the 2027 Sierra notification list. When ordering windows open, dealers with an established relationship in the system move fastest on early allocations.
Pricing and full specifications — including official towing ratings, fuel economy estimates, and trim-by-trim MSRP — will be released by GMC ahead of the on-sale date. We’ll update this page as that information becomes available.
Why Buy the 2027 Sierra 1500 at Wheelers GMC
Wheelers Family Auto Group has been selling GMC trucks in Central Wisconsin since 1964. Our Marshfield and Wisconsin Rapids locations carry the Sierra 1500 across the full lineup. When the 2027 model arrives, we’ll have allocation across both rooftops — and our team can help you navigate trim selection, engine choice, and ordering based on how you actually use your truck.
We’re not a big-city volume dealer. We know our customers, we know this market, and we know that a truck purchase in Marshfield means something different than it does in Milwaukee. If you’re farming, contracting, running a route, or just want a premium pickup that handles a Wisconsin winter, we’ll help you spec the right 2027 Sierra for your situation.
Contact our Marshfield location at 715-387-1200 (2701 S Maple Ave) or reach Wisconsin Rapids to get on the 2027 Sierra notification list. Contact Wheelers GMC →
Explore Our 2027 Sierra 1500 Resource Library
Trim Levels Compared
Pro vs. Elevation vs. AT4 vs. AT4X vs. Denali vs. Denali Ultimate — what each one costs and who it’s built for.
Denali Ultimate Deep Dive
Everything in the 2027 Denali Ultimate package — tech stack, V8, Super Cruise, and whether it’s worth the premium.
AT4X Off-Road Specs
35-inch tires, e-lockers, Multimatic dampers, and the AEV Edition — a full AT4X capability breakdown.
Engine Guide: V8 vs. TurboMax vs. Diesel
5.7L vs. 6.6L vs. TurboMax vs. Duramax — how to pick the right engine for your towing and driving needs.
2027 Sierra vs. F-150 vs. Ram 1500
How the redesigned Sierra stacks up against its two main competitors at comparable price points.
When Does the 2027 Sierra Arrive?
Timeline, expected allocation patterns, and the fastest way to get one at a Wisconsin dealership.
Super Cruise on the 2027 Sierra
How the Denali Ultimate’s hands-free driving system works, what roads it covers, and what the trailering capability actually means.
Best Truck for Central Wisconsin in 2027
How the 2027 Sierra compares for Wisconsin winters, northern Wisconsin recreation, and daily work use.
Is the 2027 Sierra Worth Waiting For?
An honest look at whether to buy a 2026 now or hold out for the next generation.
Frequently Asked Questions About the 2027 GMC Sierra 1500
When will the 2027 GMC Sierra 1500 arrive at dealerships?
GMC has confirmed the first 2027 Sierra 1500 models are expected to arrive at dealerships before the end of the 2026 calendar year. Wheelers GMC in Marshfield and Wisconsin Rapids will have inventory as it becomes available. Contact us at 715-387-1200 to get on the notification list.
What engines does the 2027 GMC Sierra 1500 offer?
The 2027 Sierra 1500 offers four powertrain options: a new sixth-generation 5.7L Small Block V8, a new 6.6L Small Block V8 (standard on Denali Ultimate and the most powerful naturally aspirated V8 in its class), an enhanced TurboMax four-cylinder with best-in-class standard torque, and a class-exclusive Duramax diesel. All engines pair with a 10-speed automatic transmission. Detailed output specs will be released by GMC ahead of the on-sale date.
What trims will the 2027 GMC Sierra 1500 come in?
The 2027 Sierra 1500 lineup includes Pro, Elevation, AT4, AT4X, Denali, and Denali Ultimate. GMC has also confirmed the AEV Edition package continues on the AT4X. Trim-by-trim pricing and specs will be released ahead of the on-sale date.
What makes the 2027 Sierra 1500 Denali Ultimate different?
The 2027 Denali Ultimate features the standard 6.6L V8 (most powerful naturally aspirated V8 in its class), over 60 inches of combined digital displays including a 16.3-inch infotainment screen and 11.5-inch passenger screen, a 16-speaker Bose audio system with class-exclusive head restraint speakers, forged wood trim, and a standard three-year Super Cruise subscription with trailering capability — hands-free driving on 600,000-plus miles of compatible roads, including when towing.
What makes the 2027 Sierra 1500 AT4X different from the standard AT4?
The 2027 AT4X adds 35-inch Goodyear Wrangler Territory MT tires (a Sierra first), Multimatic Jounce Control Dampers, a 2-inch suspension lift, a new front fascia, and class-exclusive front and rear electronic locking differentials — a combination not offered on any competitor in the half-ton class. Inside, it gets an exclusive Timber Mahogany colorway, enhanced front seat bolstering, a sport flat-bottom steering wheel, and a standard panoramic sunroof.
Does the 2027 GMC Sierra 1500 have Super Cruise?
Super Cruise is standard on the 2027 Denali Ultimate with a three-year subscription included. It enables hands-free driving on over 600,000 miles of compatible roads, including when towing — a feature not offered by any competitor in the full-size half-ton class. Automatic Lane Change and Turn Signal Initiated Lane Change are also included.
Can I pre-order the 2027 GMC Sierra 1500 at Wheelers GMC?
A formal pre-order process has not yet been announced by GMC. The best step right now is to call Wheelers GMC Marshfield at 715-387-1200 or contact Wisconsin Rapids to get on the 2027 Sierra priority notification list. When ordering opens, having an established relationship with your dealer is the fastest path to early allocation.
How much will the 2027 GMC Sierra 1500 cost?
GMC has not released MSRP pricing for the 2027 Sierra 1500 as of the June 2026 announcement. Pricing will be confirmed ahead of the on-sale date. Expect the base Pro to carry forward near current Sierra 1500 pricing, with Denali Ultimate moving upmarket to reflect the expanded technology package. We’ll update this page when pricing is announced.
Common Questions About the 2027 GMC Sierra 1500
- Is the 2027 Sierra 1500 a full redesign or a refresh?
- Full redesign — new engines, new exterior, completely redesigned interior across all trims. GMC calls it one of the most rigorous development programs the company has ever executed.
- Will the 2027 Sierra 1500 be available in diesel?
- Yes. The class-exclusive Duramax diesel carries forward in the 2027 lineup.
- What is the 2027 Sierra 1500 towing capacity?
- Official towing ratings have not been released. GMC will announce full capability specs ahead of the on-sale date. [VERIFY when released]
- Does the 2027 Sierra 1500 have a hybrid option?
- GMC has not announced a hybrid option for the 2027 Sierra 1500 as of the June 2026 reveal. The lineup focuses on gas V8, TurboMax, and diesel powertrains.
- What size is the infotainment screen on the 2027 Sierra Denali Ultimate?
- 16.3 inches diagonal — the largest infotainment screen in the full-size half-ton truck class, with class-exclusive articulation and hidden storage behind the display.
- Does the 2027 Sierra AT4X come with locking differentials from the factory?
- Yes. Front and rear electronic locking differentials are standard on the AT4X — a combination GMC says is not offered on any competitor in the half-ton class.
- What size tires does the 2027 Sierra AT4X come with?
- 35-inch Goodyear Wrangler Territory MT tires — a Sierra first, fitted from the factory.
- Can Super Cruise tow a trailer on the 2027 Sierra?
- Yes. The Denali Ultimate’s Super Cruise includes trailering capability, enabling hands-free driving on compatible roads while towing. This is not available on any competing full-size half-ton truck.
- Will the 2027 Sierra 1500 be available at Wheelers GMC Marshfield?
- Yes. Wheelers GMC in Marshfield and Wisconsin Rapids will carry the 2027 Sierra 1500 across the lineup when it arrives. Call 715-387-1200 to get on the notification list.
- Is there an AEV Edition on the 2027 Sierra?
- Yes. GMC has confirmed the AEV Edition package continues on the 2027 Sierra AT4X for buyers who want additional factory-backed off-road modifications beyond the standard AT4X package.
- Does the 2027 Sierra 1500 have a passenger screen?
- Yes, on Denali Ultimate. The 11.5-inch diagonal front passenger screen with articulating cover is the largest in class and provides media and entertainment functions for the front passenger.
- What is the MultiPro center console on the 2027 Sierra?
- An available all-new center console that opens to create an extended work surface, provides USB charging port access, and maintains a clean premium appearance — designed for both work use and long-distance travel.
2027 Sierra 1500 Buyer’s Checklist
The 2027 Sierra isn’t here yet, but the decisions you make now set up a faster, smoother purchase when it arrives. Use this checklist to get organized before the on-sale date.
- Identify your primary use case — work truck, daily driver, off-road, towing, or a mix. This determines which trim and engine makes sense for you.
- Decide on V8 vs. TurboMax vs. Diesel — the 6.6L V8 is the power choice; TurboMax if you want the torque-per-dollar ratio; diesel for high-mileage towing.
- Assess the Denali Ultimate premium — if you’re cross-shopping luxury trucks, list the Super Cruise, Bose audio, and display stack against the competition’s comparable price point.
- Evaluate AT4 vs. AT4X — do you actually need e-lockers and 35-inch tires, or does the standard AT4 cover your terrain? Be honest about your off-road use.
- Contact Wheelers GMC now — get on the notification list at Marshfield (715-387-1200) or Wisconsin Rapids so you’re in the system when ordering opens.
- Assess your current vehicle’s trade-in value — the strongest trade-in values are typically before a new model arrives and pushes used inventory up. Talk to Wheelers GMC about timing.
- Bookmark this page — we’ll update pricing, towing specs, and on-sale date information here as GMC releases it.
Ready to Get Ahead of the 2027 Sierra?
Wheelers GMC in Marshfield and Wisconsin Rapids will carry the 2027 Sierra 1500 when it arrives. Get on the notification list now and we’ll reach out the moment ordering opens.
Sources
- 2027 GMC Sierra 1500 Press Release — GMC Media (June 25, 2026)
- GMC Sierra 1500 Model Page — GMC.com
All class claims based on latest competitive data available at time of publication. Excludes other GM vehicles where noted. Full specifications, pricing, and towing ratings to be confirmed by GMC ahead of the on-sale date. This page will be updated as additional information is released.