2025 GMC Sierra 1500 4WD Crew Cab Short Box AT4: Refined Power and Trail-Ready Capability

The 2025 GMC Sierra 1500 4WD Crew Cab Short Box AT4 delivers an ideal balance of rugged off-road hardware and high-end cabin luxury. Finished in classic Summit White, this factory-certified truck is engineered to tackle challenging work sites and open trails with complete confidence. Whether you are hauling equipment across open land near El Reno or navigating daily highway commutes, the AT4 trim provides superior versatility and strength. Its aggressive stance, premium appointments, and factory-backed certification make it an outstanding choice for drivers who demand heavy-duty performance without sacrificing interior comfort. Explore our extensive selection of pre-owned trucks to see how this Sierra stands out from the crowd.

Advanced Duramax Diesel Performance & Capability

Under the hood, this Sierra AT4 is powered by a Duramax 3L I-6 direct injection, DOHC, variable valve control, intercooled turbo, diesel, engine with 305HP, paired with a smooth 10-Speed Automatic Transmission. This potent powertrain offers impressive efficiency, achieving an EPA-estimated 21 MPG city and 24 MPG highway. Designed to handle tough terrain effortlessly, the truck comes equipped with Four Wheel Drive, an AutoTrac part and full-time 4WD system featuring a Two-Speed Transfer Case and an Auto-Locking Rear Differential. The factory Off-Road Suspension, underbody skid plates, and Hill Descent Control ensure superior stability over unpaved routes. For towing duty, the included Trailering Package integrates Hitch Guidance, Hitch View, and an Integrated Trailer Brake Controller, making hitching and pulling trailers secure and straightforward. You can also easily value your current trade-in to upgrade to this heavy-duty setup today.

High-Tech Cabin & Luxury Amenities

Inside, the Crew Cab cabin offers a refined retreat lined in Jet Black w/Kalahari Accents leather seat upholstery. Both the driver and front passenger enjoy 10-Way Power Seat Adjusters w/Lumbar, featuring Ventilated Driver & Front Passenger Seats alongside Heated Driver & Front Outboard Passenger Seating. Rear passengers benefit from Heated 2nd Row Outboard Seats and dedicate