Used 2025 Gmc Sierra 2500 HD AT4

2025 GMC Sierra 2500HD AT4 Crew Cab 4WD — Duramax Diesel Onyx Black • Jet Black Interior with Kalahari Accents One Owner • Clean CARFAX • Texas-Owned Heavy-Duty Capability • Smart AT4 Value Serious diesel power. AT4 toughness. A smarter way to own a heavy-duty truck. If you’re heading into the year ahead looking for a real HD diesel truck that’s ready for work, towing, and long-term ownership—without paying full new-truck pricing—this GMC Sierra 2500HD AT4 makes a lot of sense. It offers a one-owner, personal-use Texas history, no accidents reported, and documented maintenance, giving buyers the transparency and confidence they want in a premium heavy-duty pickup. Finished in Onyx Black with a Jet Black interior accented by Kalahari, this AT4 carries a bold, purpose-built look that fits Texas roads, job sites, and weekend use equally well. Duramax Power & AT4 Capability Powered by GMC’s proven Duramax turbo-diesel V8 paired with an Allison automatic transmission and four-wheel drive, this Sierra delivers strong torque, confident towing capability, and stable performance under load. AT4-specific hardware adds off-road durability and control without sacrificing everyday drivability. The AT4 trim blends toughness with premium comfort: Heated and ventilated front seats, heated rear outboard seats, heated, leather-wrapped steering wheel, driver seat and mirror memory, dual-zone automatic climate control, premium floor liners, comfortable enough for long trips, capable enough for demanding use. The truck presents cleanly inside and out and drives exactly as a properly maintained AT4 should. If you’re looking for an affordable heavy-duty AT4 diesel near you with real capability and a clean ownership story, this GMC Sierra 2500HD AT4 is well worth a closer look. Stop by when it works for you—we’ll walk the truck with you and keep everything simple.