2027 GMC Sierra 1500 for Sale in Maine
The Next-Generation 2027 GMC Sierra 1500 Is Coming to Maine
Fully redesigned inside and out, with two all-new V8 engines, the largest touchscreen in its class, available Super Cruise hands-free driving, and up to 13,500 lbs of towing. Weirs GMC has 8 already on order — reserve yours now and be first in line when the new Sierra lands.
Reserve Your 2027 GMC Sierra 1500
Only 8 are on order at Weirs GMC, and the next-gen Sierra is expected to sell fast. Put your name on one now — tell us the trim, engine, and options you want, and we'll match you to an inbound truck or place a factory order. No obligation, and you're first to know when it arrives.
What's New on the 2027 GMC Sierra 1500?
Short answer: almost everything. The 2027 Sierra 1500 is a ground-up, next-generation redesign — new sheet metal, a completely new interior, a new engine lineup headlined by two brand-new V8s, and Super Cruise hands-free driving standard on four trims. GMC calls it the most advanced, luxurious, and powerful Sierra 1500 ever, and the first trucks are expected to reach dealers before the end of 2026.
At Weirs GMC, we've already ordered 8, and interest is high. This page is your early look and your way to reserve one now. Want the full picture on the current Sierra 1500 lineup, engines, and how it fits Maine? See our GMC Sierra 1500 overview and the rest of the lineup on our Find My GMC Truck hub.
2027 Sierra 1500 Engine Lineup
Two all-new sixth-generation small-block V8s join the returning TurboMax and Duramax diesel. Every engine pairs with a 10-speed automatic.
| Engine | Horsepower | Torque | Best For |
|---|---|---|---|
| 2.7L TurboMax (standard) | 350 hp | 455 lb-ft | Best-in-class standard torque, everyday value |
| 5.7L V8 (NEW) | 402 hp | 428 lb-ft | Highest available towing — up to 13,500 lbs |
| 6.6L V8 (NEW) | 481 hp | 501 lb-ft | GMC's most powerful half-ton V8 ever |
| 3.0L Duramax Turbo-Diesel | 305 hp | 495 lb-ft | 900+ mi range, up to 12,100 lbs tow |
Maine tip: If towing is your priority — a boat to Sebago, a camper up north — the new 5.7L V8 carries the highest tow rating. Want the most muscle? The new 6.6L V8 makes 481 hp, GMC's most powerful half-ton V8 ever and the most powerful naturally aspirated V8 in its class. Not sure which fits? Compare engines on our Sierra 1500 engine guide or ask us to spec your reservation.
Redesigned From the Ground Up
Two New V8s
An all-new 5.7L and 6.6L small-block V8 join TurboMax and Duramax — more power, more towing, more refinement across the lineup.
Super Cruise
Hands-free driving on compatible roads is standard on AT4, AT4X, Denali, and Denali Ultimate, and available on Elevation — now with trailering capability.
Class-Largest Screen
A 16.3-inch center touchscreen — the biggest in the segment — plus an available 11.5-inch passenger display for 60+ inches of combined displays.
All-New Look
A more vertical grille, evolved GMC signature lighting with welcome/farewell animations, and available quad exhaust outlets.
Tougher AT4X
A 2-inch factory lift, Multimatic DSSV plus Jounce Control dampers, 35-inch Goodyear Wrangler Territory MT tires, front + rear e-lockers, and a new Baja drive mode.
Up to 19 Camera Views
First-in-class available front and rear underbody cameras and up to 19 camera views help with trailering, tight trails, and snowy driveways.
2027 Sierra 1500 Trim Lineup & Pricing
Six trims, from the work-ready Pro to the top-luxury Denali Ultimate. Super Cruise is standard from AT4 up.
| Trim | What It's For | Super Cruise | Starting MSRP* |
|---|---|---|---|
| Pro | Work truck value | — | $51,295 |
| Elevation | Everyday style | Available | $59,995 |
| AT4 | Off-road capable | Standard | $74,495 |
| Denali | Signature luxury | Standard | $76,795 |
| AT4X | Max off-road | Standard | $85,495 |
| Denali Ultimate | Top of the line | Standard | $87,895 |
*Starting MSRP for Crew Cab 4WD, including the $2,795 destination charge, per GMC as of September 2026; before options, taxes, and incentives, and subject to change. Regular Cab and Double Cab pricing to be announced. Call us or start a reservation for current numbers on the trim you want.
Built for Maine Work
Firewood in October, the boat ramp at Sebago, and every January morning in between — the 2027 Sierra 1500 is built to earn its keep.
Tow up to 13,500 lbs
Properly equipped with the 5.7L V8. Up to 19 camera views help you hook up in the dark and watch the trailer down I-95.
A Bed That's Ready
16 standard cargo tie-downs (the most in its class), the MultiPro tailgate, a built-in tailgate ruler, and available bed lighting and power outlet.
See What's Under You
First-in-class available front and rear underbody cameras — a real help on a rutted camp road or a snowed-in driveway.
A Cabin That Works as Hard as You Do
A 16.3-inch center touchscreen anchors a new interface built around truck tasks like trailering, off-road, and camera views. Add the available 11.5-inch passenger display for more than 60 inches of combined digital displays. The redesigned Crew Cab adds best-in-class standard front head and legroom, new colorways, and premium materials, and the center console folds out into a flat workspace with USB-C charging — handy for paperwork or lunch between job sites. On AT4, AT4X, Denali, and Denali Ultimate, Super Cruise hands-free driving comes standard.
Reserve Now — Shop the Sierra When It Lands
With 8 on order, the smartest move is to reserve early. As trucks arrive, you'll also be able to browse live inventory. Here's how to get started from Portland, Biddeford, Kennebunk, or Sanford:
Reserve the 2027 Sierra 1500 at Weirs GMC in Southern Maine
Weirs GMC has been Southern Maine's family GMC truck store for over 65 years, based in Arundel between Biddeford and Kennebunk and a short I-95 run from Portland. The Sierra 1500 is the truck we build our business around — for towing to Sebago, plowing driveways, hauling to the coast, and everything a Maine winter demands. When the next-generation 2027 Sierra lands, we want Weirs customers first in line. Reserve yours today, or compare it against the midsize GMC Canyon and the heavy-duty Sierra HD on our Find My GMC Truck hub.
2027 GMC Sierra 1500 — Frequently Asked Questions
When does the 2027 GMC Sierra 1500 come out?
GMC expects the first next-generation 2027 Sierra 1500 trucks to reach dealers before the end of 2026. Weirs GMC has 8 on order and is taking reservations now.
Can I reserve a 2027 Sierra 1500 at Weirs GMC?
Yes. Tell us the trim, engine, and options you want and we'll match you to an inbound truck or place a factory order. Start your reservation or call (207) 600-1088.
What engines does the 2027 Sierra 1500 have?
A standard 2.7L TurboMax (350 hp / 455 lb-ft), two all-new V8s — a 5.7L (402 hp) and a 6.6L (481 hp / 501 lb-ft) — and a 3.0L Duramax turbo-diesel (305 hp / 495 lb-ft). All use a 10-speed automatic.
How much can the 2027 Sierra 1500 tow?
Up to 13,500 lbs when properly equipped, with the new 5.7L V8 delivering the highest available tow rating. The Duramax diesel tows up to 12,100 lbs.
How much does the 2027 GMC Sierra 1500 cost?
Starting MSRP (Crew Cab 4WD, incl. destination) runs $51,295 Pro, $59,995 Elevation, $74,495 AT4, $76,795 Denali, $85,495 AT4X, and $87,895 Denali Ultimate. Contact Weirs GMC for current pricing on your preferred trim.
Which 2027 Sierra 1500 trims have Super Cruise?
Super Cruise hands-free driving is standard on AT4, AT4X, Denali, and Denali Ultimate, and available on Elevation. The 2027 system adds hands-free trailering capability.
What's new on the AT4X?
The 2027 AT4X adds a 2-inch factory lift, Multimatic DSSV plus Jounce Control dampers, 35-inch Goodyear Wrangler Territory MT tires, front and rear e-locking differentials, and a new Baja drive mode.
Be First in Line for the 2027 GMC Sierra 1500
Only 8 on order at Weirs GMC. Reserve your trim, engine, and options today — no obligation, first to know when it lands.