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VIN #1GT49VEY9PF154958
stock # TPF154958
AT4
Heavy‑duty diesel power meets premium off‑road design.
The 2023 GMC Sierra3500HD AT4 Diesel combines serious workcapability with refined styling and an adventurous edge. Equipped with the rugged AT4 offroad oriented trim and the potent diesel powertrain, this truck is built to tow big, haul heavy, and take you farther than most fullsize pickups.
Key Highlights:
6.6L Duramax® V8 TurboDiesel engine producing 445hp and a towering 910lbft of torque.
Allison® 10speed automatic transmission (diesel) paired with heavyduty components for maximum durability.
Exceptional trailering capability — up to 36,000lbs when properly equipped.
AT4 trim delivers offroad ready features: 4WD, rugged suspension tuning, unique styling cues, and premium interior.
Premium interior amenities including wireless AppleCarPlay®, AndroidAuto™, multiple camera views, and upscale materials.
See it today!
Experience the commanding presence and heavyduty capability of the 2023 Sierra3500HD AT4 Diesel in person. Visit our dealership to explore this truck up close, review its towing and offroad features, and take it for a test drive. Your next investment in performance and versatility starts here.