2026 GMC Sierra 2500 HD Crew Cab

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2026 GMC Sierra 2500 HD Crew Cab

AT4X Pickup 4D 6 1/2 ft

12,078 miles

Includes:$10,485 in factory upgrades

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 an advanced infotainment system.

Black Badging Package

A distinctive, darkened aesthetic is added with black Sierra nameplates and black GMC emblems.

Duramax 6.6L Turbo-Diesel V8 Engine

Originally valued at $9,990, this engine delivers substantial power and torque for demanding towing and hauling tasks.

Sterling Metallic

Originally valued at $495, this paint finish provides a sophisticated and distinctive exterior appearance.

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.

18-inch machined aluminum wheels with high gloss black accents

Machined aluminum wheels with high gloss black accents enhance the vehicle's stance and add a refined visual detail.

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