2026 GMC Sierra 2500 HD Crew Cab

AT4X Pickup 4D 6 1/2 ft

1,032 miles

Another customer started purchasing this vehicle

Why You’ll Love This Sierra 2500

Slotted above the AT4 and below the Denali and Denali Ultimate in the Sierra 2500 HD lineup, the AT4X delivers serious off-road capability with advanced off-road damping, adventure-ready engineering, and enhanced traction control, complemented by premium comfort seating for everyday luxury.

AT4X AEV Edition

Originally valued at $9,390, this package offers off-road protection with high approach stamped steel AEV front and rear bumpers, reinforced stamped steel skid plates, and 18-inch AEV Salta black gloss aluminum wheels.

Duramax 6.6L Turbo-Diesel V8 Engine

Originally valued at $9,990, this option provides robust power and torque for heavy-duty hauling and towing applications.

Volcanic Red Tintcoat

Originally valued at $645, this option adds a vibrant, multi-dimensional red finish to the vehicle's exterior.

Advanced off-road damping

Multimatic DSSV dampers provide exceptional control and comfort over rough terrain, adapting to various off-road conditions.

Heavy-duty diesel power

Provides immense 975 lb-ft of torque and 470 HP through its Duramax 6.6L Turbo-Diesel V8 engine, Allison 10L1000 10-speed automatic transmission and 4WD, optimized for low-end torque and heavy hauling with an exhaust brake.

Adventure-ready engineering

The AT4X trim is engineered for extreme off-road capability and includes specialized hardware for challenging terrain.

Enhanced traction control

A rear electronic-locking differential maximizes traction by distributing power evenly to both rear wheels for challenging off-road situations.

Premium comfort seating

16-way heated and ventilated power front seats with massage function provide exceptional comfort and reduce fatigue on long drives.

Advanced infotainment system

A 13.4-inch diagonal premium GMC Infotainment System with Google Built-In compatibility offers seamless navigation, media access and includes wireless Apple CarPlay and Android Auto.

Adaptive cruise control

This system with trailering automatically adjusts vehicle speed to maintain a set distance from the vehicle ahead during towing.

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