What do Denali and Denali Ultimate Package Offer?

The base model 2025 GMC Sierra 1500 Denali comes exceptionally well‐equipped with a 5.3‐liter V8 combined with a super‐smooth 10‐speed automatic transmission. This incredible powertrain generates an astonishing 383 pound‐feet of torque and 355 horsepower, powering the GMC Sierra 1500 to an incredible 11,200‐pound towing capacity.

As if this weren't enough, Coulter Camelback Buick GMC customers have the option of upgrading to either the legendary Duramax® Turbo‐Diesel 3‐liter engine or the 6.2‐liter V8 EcoTec3 Engine, both with the same 10‐speed automatic transmission. With the Duramax® Turbo‐Diesel, the GMC Sierra 1500 Denali achieves 305 horsepower and 495 pound‐feet of torque, allowing it to increase towing capacity to a more‐than‐sufficient 13,200 pounds, while the 6.2‐liter V8 Eco‐Tec3 sees a slight reduction in towing capacity to 13,000 pounds courtesy of its 420 horsepower and 460 pound‐feet of torque.

5.3‐Liter V8:
383 lb‐ft of Torque
355 HP
11,200‐pound towing capacity

3‐Liter Duramax® Turbo‐Diesel
495 lb‐ft of Torque
305 HP
13,200‐pound towing capacity

6.2‐Liter V8 EcoTec3 Engine:
460 lb‐ft of Torque
420 HP
13,000‐pound towing capacity

When it comes to high‐tech features, first‐rate amenities, and a driver‐centric cabin that offers premium luxury, there simply isn't any way to beat the 2025 GMC Sierra 1500 Denali. Whether it's the 10‐speaker sound system, a 15‐inch diagonal, digital, multicolor head‐up display (HUD), the 13.4‐inch diagonal multicolor HD touchscreen with built‐in navigation and entertainment, or a Super Cruise system that won MotorTrend's Best Hands‐Free Driving Technology Award, the features of the 2025 GMC Sierra 1500 Denali stand alone.

Once inside, you'll marvel at an extremely spacious and accommodating interior that boasts 12‐way power front seating with power lumbar and the choice of leather seating or aluminum‐trimmed upholstery. With a 14‐camera view backup and parking system, numerous trailer configurations, a CarbonPro® composite bed, and the iconic, chrome‐powdered front grille, the 2025 GMC Sierra 1500 Denali looks, feels, and performs unlike any other pickup in its class.

Fantastic styling and a robust exterior aside, Coulter Camelback Buick GMC customers can choose among an array of head‐turning exterior colors. The 2025 GMC Sierra 1500 Denali and Denali Ultimate are available in White Frost Tricoat, Sterling Metallic, Thunderstorm Gray, Titanium Rush Metallic, Onyx Black, and Downpour Metallic.

white frost tricoat

Sterling Metallic

Thunderstorm Gray

Titanium Rush Metallic

Onyx Black

Downpour Metallic

Carrying over all the bells and whistles of the GMC Sierra 1500 Denali, the Denali Ultimate Sierra provides several one‐of‐a‐kind upgrades. These include the exclusive Denali Ultimate Vader Chrom Grille and 22‐inch machined aluminum, 7‐spoke Ultra‐Bright, high‐performance wheels with chrome‐powdered accents.

The stereo system sees a substantial upgrade to a 12‐speaker Bose® Premium Audio System with exclusive Centerpoint surround sound and AudioPilot technology. Finally, the Denali Ultimate provides a free 3‐year OnStar Super Cruise subscription along with 16‐way heated front seats with super‐comfortable massage features.

Sierra 1500 Denali

MAX AVAILABLE HORSEPOWER:
420 hp¹

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MAX AVAILABLE TORQUE:
495 lb.-ft.²

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FRONT HEADROOM:
43.0"

PASSENGER CAPACITY:
Up to 5

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FRONT LEGROOM:
44.5"

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CARGO BED VOLUME:
SHORT BOX: 62.9 cu. ft.³
STANDARD BOX: 71.7 cu. ft.³

Sierra 1500 Denali Ultimate

STANDARD HORSEPOWER:
420 hp

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MAX AVAILABLE TORQUE:
495 lb.-ft.²

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FRONT HEADROOM:
43.0"

PASSENGER CAPACITY:
Up to 5

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FRONT LEGROOM:
44.5"

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CARGO BED VOLUME:
62.9 cu. ft.³

Test Drive the 2025 GMC Sierra 1500 Denali at Coulter Camelback Buick GMC Today

For over a century, Arizonans have trusted the Coulter Camelback Buick GMC as their choice Sierra dealer in Phoenix, AZ. As the go‐to solution for Buick and GMC brand champions, Coulter Camelback Buick GMC has redefined what it means to provide first‐rate sales and service. From a finance team whose uncanny ability to secure favorable, low‐cost financing terms always saves customers money, to a sales team that redefines what it means to provide a stress‐free, worry‐free purchase, we're exceptionally proud to sell and service all our friends in and around Phoenix, AZ.

At Coulter Camelback Buick GMC, we pride ourselves on helping all customers get the Buick or GMC truck of their dreams. We'll work with you to ensure you have a more‐than‐favorable and affordable payment plan while having the truck or SUV you've always dreamed of.

To take a 2025 GMC Sierra 1500 Denali or Denali Ultimate for a test drive at Coulter Camelback Buick GMC, contact us today!