2026 GMC Sierra 1500 SLT

Vehicle Description

2026 GMC Sierra 1500 SLT Crew Cab 4WD for Sale in Mobridge, SD

Diesel torque with SLT refinement — this 2026 GMC Sierra 1500 SLT Crew Cab 4WD runs the Duramax 3.0L Turbo-Diesel through a 10-speed automatic and wears the X31 Off-Road and Protection Package. Sterling Metallic over Jet Black with ventilated front seats and 20-inch polished aluminum wheels, it's built to tow all day and sip fuel doing it — an ideal fit for long South Dakota highway miles.

The SLT Premium Package loads it further, and the X31 package adds off-road suspension, skid plates, all-terrain tires, and a heavy-duty air filter for the gravel. The GMC MultiPro tailgate, HD rear vision camera, and trailering package with storage handle the work side.

2026 GMC Sierra 1500 SLT Crew Cab 4WD — Stock #6W104

• Drivetrain: Four-Wheel Drive (4WD), Crew Cab Short Box


• Engine: Duramax 3.0L Turbo-Diesel


• Transmission: 10-Speed Automatic


• Exterior Color: Sterling Metallic


• Interior: Jet Black with ventilated front seats


• Packages: SLT Premium Package and X31 Off-Road and Protection Package


• Off-Road: Off-road suspension, skid plates, all-terrain tires, and heavy-duty air filter


• Towing: Trailering Package with storage, 3.23 rear axle, and hill start assist


• Technology: 12.3-inch diagonal digital driver information center, remote start, HD rear vision camera, and 120V power outlets in cargo bed and instrument panel


• Safety: Forward collision alert, lane keep assist with lane departure warning, IntelliBeam auto high beams, and tire pressure monitoring with tire fill alert


• Convenience: GMC MultiPro Tailgate, power rake and telescoping steering column, LED fog lamps, rain-sensing wipers, rear-window defogger, and rear wheelhouse liners


• Exterior Highlights: 20-inch Polished Aluminum Wheels


• Fuel Economy: EPA-estimated 22 city / 26 highway MPG

Expert Insights

According to Kelley Blue Book and Edmunds, the Duramax 3.0L diesel is the Sierra lineup's efficiency champion, delivering strong towing torque with fuel economy no gas half-ton can match. The SLT with X31 is a smart spec for buyers who work their trucks and drive real distances.

Visit Beadle Chevrolet–GMC in Mobridge, SD

Come see this 2026 GMC Sierra 1500 SLT Crew Cab 4WD at Beadle Chevrolet–GMC in Mobridge, South Dakota. We serve customers from Aberdeen, SD, Bismarck, ND, and Pierre, SD — all within two hours. Call us at 605-845-7277 or visit beadleautogroup.com to schedule your test drive!