2018 GMC Sierra 2500HD Denali

2018 GMC Sierra 2500HD Denali – 6.6L Duramax Turbo-Diesel V8
6.6L Duramax Turbo-Diesel V8
Allison 1000 6-Speed Automatic
Crew Cab Denali Configuration
Jet Black Leather Interior
Built for serious capability.
Key Highlights
Duramax Plus Package
Power Sunroof
Denali Preferred Equipment Group
Gooseneck / 5th Wheel Prep Package
Off-Road Suspension Package
Chrome Power Adjustable Trailering Mirrors with Memory
Rear Underseat Composite Storage
High Idle Switch & Exhaust Brake
The Experience
The Duramax diesel paired with the Allison transmission delivers strong, consistent power with smooth shifting under load. Whether towing or cruising, the truck maintains composure with a confident, planted feel.
Inside, the Denali trim presents a refined, quiet cabin with premium materials throughout. The layout is clean and functional, with intuitive access to key controls and technology designed for everyday usability.
This Sierra 2500HD combines heavy-duty performance with upscale execution, creating a well-balanced truck built for both demanding work and comfortable driving.
Factory Installed Packages & Options
Duramax Plus Package — $9,940
Power Sunroof — $995
Other Factory Options
Suspension Package, Off Road
Rear Axle, 3.73 Ratio
Gooseneck / 5th Wheel Prep Package
Engine Block Heater
Switch, High Idle
Chrome Recovery Hooks
Smoked Amber Roof Marker Lamps
Chrome Heated Power Adjustable Trailering Mirrors with Memory
Rear Underseat Storage
Front License Plate Kit
Performance & Capability
Four-Wheel Drive System
Heavy-Duty Locking Rear Differential
Integrated Trailer Brake Controller
Trailer Hitch Platform
Hill Descent Control
High-Capacity Air Cleaner
Interior & Comfort
Perforated Leather Seating
Heated Front Bucket Seats
Dual-Zone Automatic Climate Control
Power Adjustable Pedals
Driver Memory Settings
Heated Leather-Wrapped Steering Wheel
Technology & Connectivity
GMC Infotainment System with Navigation
Apple CarPlay & Android Auto Capability
Bluetooth Audio Streaming
Bose Premium Sound System
4G LTE Wi-Fi Hotspot
Exterior & Utility
Spray-On Bedliner
EZ-Lift Tailgate
LED Cargo Box Lighting
HID Projector Headlamps
20" Chrome Aluminum Wheels
Safety & Driver Assistance
Forward Collision Alert
Lane Departure Warning
Front & Rear Park Assist
Rear Vision Camera with Guidelines
Stability Control with Trailer Sway Control
Tire Pressure Monitoring System
Why This Spec Matters
A Duramax diesel Denali with the right factory packages offers a strong balance of towing performance, long-term durability, and premium interior refinement—making it one of the most desirable heavy-duty truck configurations available.
Strong diesel performance.
Well-equipped Denali build.
Ready for demanding use.
Services done by TX Auto Group Service: Vehicle Inspected, Oil & Filter Changed, all fluids checked & topped off if needed.
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