The 2027 GMC Sierra 1500 enters a new generation with four revised engines, a 10-speed automatic across the range, six trims, larger digital displays, and a sharper split between work trucks, off-road models, and luxury pickups. Most crew-cab 4WD trims rise by several thousand dollars, and the Denali posts the largest year-over-year increase.
The 2027 GMC Sierra 1500 Pro starts at a $39,300 headline MSRP in its least expensive configuration. Crew-cab 4WD prices run from $51,295 to $87,895.
2027 GMC Sierra 1500 Price Changes
GMC removed the SLE and SLT. The following figures cover crew-cab 4WD versions and keep cab and drivetrain constant.
| Trim | 2027 starting price | Increase | Prior equivalent price |
|---|---|---|---|
| Pro | $51,295 | $1,955 | $49,340 |
| Elevation | $59,995 | $3,600 | $56,395 |
| AT4 | $73,495 | $2,700 | $70,795 |
| Denali | $76,795 | $4,105 | $72,690 |
| AT4X | $85,495 | $3,100 | $82,395 |
| Denali Ultimate | $87,895 | $205 | $87,690 |
Looking at the data, the Denali takes the largest dollar increase. The Elevation rises about 6.4 percent, the biggest percentage jump, while the Denali Ultimate barely moves. That leaves only $2,400 between the AT4X and Denali Ultimate.
Pro-Tip: Compare Identical Truck Configurations
Do not compare GMC's $39,300 Pro headline MSRP with a $51,295 crew-cab 4WD Pro and call the difference a dealer markup. Cab, bed, drivetrain, engine, destination charge, and factory options can change the sticker by five figures. Ask the dealer for the full window sticker and compare line by line.
Four Engines, One 10-Speed Automatic
The 2027 Sierra 1500 engine lineup covers four distinct use cases. GMC now pairs every engine with a 10-speed automatic, including the TurboMax four-cylinder that previously used an eight-speed unit.
| Engine | Horsepower | Torque | Key capability |
|---|---|---|---|
| 2.7-liter TurboMax turbo-four | 350 hp | 455 lb-ft | Standard on Pro and Elevation |
| 5.7-liter V8 | 402 hp | 428 lb-ft | Up to 13,500 lb towing |
| 3.0-liter Duramax turbo-diesel inline-six | 305 hp | 495 lb-ft | Up to 12,100 lb towing; over 900 highway miles with 34-gallon tank |
| 6.6-liter V8 | 481 hp | 501 lb-ft | Most power and torque in the range |
The upgraded TurboMax engine gains 40 horsepower and 25 lb-ft, giving it more torque than the 5.7-liter V8. The 10-speed gearbox provides tighter ratio spacing, helping the engine stay closer to its productive rev range during towing and grade changes.
The 5.7-liter V8 replaces the old 5.3-liter unit and adds 47 horsepower plus 45 lb-ft. The 6.6-liter V8 replaces the 6.2-liter and adds 61 horsepower plus 41 lb-ft. Both engines use GM's sixth-generation small-block architecture, higher compression, larger throttle openings, revised intake paths, and dual fuel injection.
Specifically, direct injection supports charge cooling and precise high-load fueling, while port injection supports clean intake valves and stable combustion. Revised cooling, lubrication, and control hardware targets sustained towing loads.
GMC has not published peak-power rpm, peak-torque rpm, or complete torque curves. Buyers should wait for SAE-certified curve data before assuming the 6.6-liter V8 will pull harder than the diesel at every engine speed. The gasoline V8 leads on peak output, but the diesel may deliver more of its 495 lb-ft lower in the rev range.
Towing, Payload, and Driving Range
The 2027 GMC Sierra 1500 towing capacity tops out at 13,500 pounds, or 6,124 kg, with the 5.7-liter V8 in the required configuration. The Duramax reaches 12,100 pounds, or 5,489 kg. GMC has not attached every maximum rating to every cab, axle ratio, and trim, so buyers must verify the certification label and trailering guide for the truck they order.
Maximum payload varies sharply with body and equipment:
- Regular Cab, standard bed, RWD: 2,320 pounds, or 1,052 kg
- Regular Cab, long bed, RWD: 2,230 pounds, or 1,012 kg
- Double Cab, standard bed, 4WD: 2,040 pounds, or 925 kg
- Crew Cab, short bed: 2,020 pounds, or 916 kg
- Crew Cab, standard bed, 4WD: 1,950 pounds, or 885 kg
Consequently, a plush truck may carry less than a basic work configuration. Panoramic glass, powered seats, larger wheels, skid plates, and trail hardware consume payload before passengers, hitch weight, or cargo enter the equation.
The diesel's optional 34-gallon tank supports GMC's claim of more than 900 highway miles. That statement implies roughly 26.5 highway miles per gallon across the full tank, but it does not replace an EPA rating or a loaded towing test. Speed, temperature, trailer frontal area, and regeneration cycles can cut range substantially.
Cab, Bed, and Exterior Measurements
The next-generation GMC Sierra retains several body choices, though trim availability limits the combinations.
| Configuration | Length | Bed volume | Maximum payload |
|---|---|---|---|
| Regular Cab, standard bed | 212.1 in / 5,387 mm | 71.7 cu-ft / 2,030 L | 2,320 lb / 1,052 kg |
| Regular Cab, long bed | 230.9 in / 5,865 mm | 89.1 cu-ft / 2,523 L | 2,230 lb / 1,012 kg |
| Double Cab, standard bed | 233.1 in / 5,921 mm | 71.7 cu-ft / 2,030 L | 2,040 lb / 925 kg |
| Crew Cab, short bed | 233.1 in / 5,921 mm | 62.9 cu-ft / 1,781 L | 2,020 lb / 916 kg |
| Crew Cab, standard bed | 242.6 in / 6,162 mm | 71.7 cu-ft / 2,030 L | 1,950 lb / 885 kg |
Width measures 81.4 inches, or 2,068 mm, without mirrors and 96.9 inches, or 2,461 mm, with them. Height ranges from 75.2 to 79.6 inches, or 1,910 to 2,022 mm. Crew Cab occupants receive 43.07 inches of front headroom and 44.37 inches of front legroom.
From an expert perspective, the 242.6-inch Crew Cab standard-bed truck demands planning in older garages and urban parking structures. Its body stretches 9.5 inches longer than the short-bed Crew Cab, yet both measure nearly 8.1 feet across with mirrors extended.
AT4 and AT4X Hardware
The AT4 starts with a 2-inch factory lift, monotube dampers, a locking rear differential, and 34-inch all-terrain tires. The Sierra AT4X adds 35-inch mud-terrain tires, Multimatic DSSV dampers, new jounce-control dampers, front and rear electronic locking differentials, underbody cameras with lens washers, and a Baja drive mode for fast travel on firm sand, dirt, and gravel.
The jounce dampers manage the final part of suspension compression. In addition, they reduce the load spike that reaches the chassis when a wheel uses most of its travel. The larger tires add clearance but can reduce braking precision, fuel economy, and highway quietness.
GMC has not released official 2027 AT4X ground clearance, approach angle, breakover angle, or departure angle. Older Sierra AT4X AEV figures do not automatically apply because tire size, fascia shape, wheelbase, and underbody hardware can change those measurements.
Cabin Technology Has a Practical Side
The dashboard can carry more than 60 diagonal inches of displays: a 16.3-inch center screen, 12.2-inch driver display, 11.5-inch passenger screen, 15-inch head-up display, and 8.5-inch digital rearview mirror. GMC kept physical controls for common truck functions, a sensible decision when gloves, vibration, or rough roads make touch targets harder to use.
Up to 19 camera views support hitch alignment, parking, trail placement, and underbody checks. Super Cruise adds hands-free driving with trailer support. Four new 250-pound tie-downs raise the MultiPro tailgate's total to 16.
Which 2027 Sierra 1500 Should You Buy?
Choose the Elevation if you want the new cabin and daily-use features without paying Denali money. Pick the 5.7-liter V8 when maximum published towing takes priority, or the Duramax when unloaded highway range and low-rpm pull lead your list. The AT4 makes sense for frequent dirt-road use; buy the AT4X only if you will use its lockers, DSSV dampers, underbody cameras, and 35-inch tires.
The Denali now costs only $3,300 more than the AT4 in crew-cab 4WD configuration. By comparison, the Denali Ultimate sits $11,100 above the Denali but includes the 6.6-liter V8 and the richest cabin hardware. Its tiny $205 price increase also makes it the least affected by the new pricing strategy.
Why This Matters to You
The new 2027 GMC Sierra 1500 delivers real mechanical gains, not a screen-only update. Buyers get stronger engines, a 10-speed transmission across the range, useful camera coverage, and clearer specialization between luxury and trail trims. Yet the rising prices make configuration discipline essential: the right Sierra can tow 13,500 pounds or carry 2,320 pounds, but one truck will rarely achieve every maximum at once.
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