2026 GMC Sierra 2500HD AT4 * Paint Film Added * AT4 * Paint Film Added *

• TRANSMISSION 10-SPEED AUTOMATIC
• HIGH IDLE SWITCH
• ENGINE DURAMAX 6.6L TURBO-DIESEL V8 B20-DIESEL COMPATIBLE (470 hp [350.5 kW] @ 2800 rpm 975 lb-ft of torque [1322 Nm] @ 1600 rpm) (Includes (K05) engine block heater.)
• LPO OFF-ROAD HIGH CLEARANCE STEPS (dealer-installed)
• GOOSENECK / 5TH WHEEL PREP PACKAGE -- HITCH PLATFORM TO ACCEPT GOOSENECK OR 5TH WHEEL HITCH. Includes hitch platform with tray to accept ball stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness).
• AT4 PREFERRED EQUIPMENT GROUP includes standard equipment
• LOWERED GVWR 9900 LBS. (4490 KG) LOWERS GVWR AND SIGNIFICANTLY DECREASES TOWING AND/OR PAYLOAD RATINGS
• REAR AXLE 3.42 RATIO
• 3 YEARS SIRIUS XM
• AT4 PREMIUM PLUS PACKAGE includes (PDO) AT4 Preferred Package (CF5) power sunroof (CWM) Technology Package and (VXW) AT4 high clearance step LPO
• Tow Hooks
• Aerial View Display System
• Blind Spot Monitor
• Smart Device Integration
• Heated Mirrors
• Power Door Locks
• 4-Wheel Disc Brakes
• Adjustable Steering Wheel
• Aluminum Wheels
• Passenger Air Bag Sensor
• Front Collision Warning
• Keyless Entry
• Tow Hitch
• Auto-Dimming Rearview Mirror
• Power Windows
• Rear Bench Seat
• MP3 Capability
• Back-Up Camera
• Rear Head Air Bag
• WiFi Hotspot
• Driver Adjustable Lumbar
• Rear Defrost
• AM/FM Stereo
• Requires Subscription
• Mirror Memory
• Bluetooth Connection
• Power Driver Seat
• Power Windows
• Heated Rear Seat(s)
• Steering Wheel Audio Controls
• Integrated Tailgate Step
• Requires Subscription
• Lane Departure Warning
• Multi-Zone A/C
• Keyless Start
• Heated Steering Wheel
• Climate Control
• Locking/Limited Slip Differential
• Front Collision Mitigation
• Conventional Spare Tire
• Fog Lamps
• Power Folding Mirrors
• Telematics
• Cruise Control
• Daytime Running Lights
• Keyless Start
• Automatic Highbeams
• Front Collision Mitigation
• Front Collision Mitigation
• Front Collision Warning
• Premium Sound System
• Stability Control
• Lane Departure Warning
• Automatic Highbeams
• Front Collision Warning
• Power Passenger Seat
• Auxiliary Audio Input
• Heated Front Seat(s)
• Requires Subscription
• ABS
• Passenger Air Bag
• Driver Air Bag
• Adaptive Cruise Control
• MP3 Capability
• Daytime Running Lights
• Power Mirror(s)
• Auxiliary Audio Input
• Integrated Turn Signal Mirrors
• Rear Parking Aid
• Security System
• Leather Seats
• Remote Engine Start
• Power Door Locks
• Front Side Air Bag
• Satellite Radio
• Floor Mats
• Four Wheel Drive
• Variable Speed Intermittent Wipers
• Rain Sensing Wipers
• Requires Subscription
• Navigation System
• A/C
• Bluetooth Connection
• Floor Mats
• Tires - Rear All-Terrain
• Driver Restriction Features
• Bluetooth Connection
• Cooled Front Seat(s)
• Privacy Glass
• Pass-Through Rear Seat
• Seat Memory
• Intermittent Wipers
• Front Head Air Bag
• Smart Device Integration
• Passenger Adjustable Lumbar
• Tire Pressure Monitor
• Daytime Running Lights
• Telematics
• Traction Control
• MP3 Capability
• Power Windows
• Bucket Seats
• Cross-Traffic Alert
• Running Boards/Side Steps
• Heated Front Seat(s)
• Auxiliary Audio Input
• Power Steering
• Bed Liner
• Back-Up Camera
• Tires - Front All-Terrain

Built for demanding work and modern connectivity, our diesel-powered 2026 GMC Sierra 2500HD AT4 Crew Cab 4X4 in Onyx Black pairs smart technology, versatile truck capability, and a refined cabin designed for everyday productivity. Motivated by a TurboCharged 6.6 Litre DuraMax Diesel V8 providing 470hp and 975lb-ft of torque to a 10 Speed Allison Automatic transmission. This Four Wheel Drive truck also has an off-road suspension, skid plates, hill-descent control, and an Autotrac 2-speed transfer case for getting to hard-to-reach jobs. Our Sierra boasts LED lighting, red recovery hooks, 20-inch high-gloss black alloy wheels, a spray-on bedliner, a sunroof, and a MultiPro tailgate for high-visibility styling. Our AT4 cabin is your mobile command post for doing more. It features heated/ventilated leather power front seats and heated rear seats, a heated-wrapped steering wheel, dual-zone automatic climate control, keyless access/ignition, remote start, and remarkable technologies. Highlights include a Bose audio system, a 12.3-inch driver display, a 13.4-inch touchscreen, Google Built-in, WiFi compatibility, Apple CarPlay®/Android Auto®, Bluetooth®, and wireless charging. GMC helps you stay safe as you work hard with a surround-view system, a bed-view camera, trailer-capable blind-spot monitoring, automatic braking, parking sensors, lane-departure warning, trailer-sway control, hill-start assistance, and more. When tough jobs call, our Sierra 2500 AT4 is ready to answer! Save this Page and Call for Availability. We Know You Will Enjoy Your Test Drive Towards Ownership! Serving the Westman area for decades, our award-winning dealership and our professional sales staff are here to make your auto shopping experience hassle-free.