2026 GMC Sierra 3500HD SLE Crew Cab 4WD for Sale in Mobridge, SD

Meet the new 2026 GMC Sierra 3500HD SLE Crew Cab 4WD, Stock #5W162—an ultra-capable heavy-duty truck built for towing, hauling, and working in the toughest conditions. Available now at Beadle Chevrolet – GMC in Mobridge, South Dakota, this Sierra 3500HD is powered by the legendary 6.6L Duramax Turbo-Diesel paired with a 10-speed Allison automatic, delivering max durability and confidence on every job. With the X31 Off-Road Package, Gooseneck/5th Wheel Prep, and advanced trailering tech, this HD truck is ready for ranching, construction, and long-distance towing across Aberdeen, SD, Bismarck, ND, and Pierre, SD.

2026 GMC Sierra 3500HD SLE Crew Cab 4WD – Stock #5W162

Key Features & Highlights

• Engine & Performance: Duramax 6.6L Turbo-Diesel (L5P), 10-speed automatic transmission (MGM), 4WD with electronic two-speed transfer case, Exhaust Brake (K40), Heavy-Duty Locking Rear Differential (G80), and external engine/transmission oil coolers for demanding work environments.
• Off-Road Capability: X31 Off-Road Package with Rancho shocks, skid plates, hill descent control, and X31 badging—designed for rugged terrain and challenging job sites.
• Towing & Hauling: Gooseneck/5th Wheel Prep Package (CMT, Z6A), Trailering Package (Z82), Hitch Guidance, Hitch View (PZ8), integrated trailer brake controller, 7-pin wiring, reinforced cooling system, and a GVWR of 12,250 lbs for exceptional towing strength.
• Exterior Features: Summit White exterior, trailer tow mirrors, spray-on bedliner, LED projector headlamps with animated lighting, LED fog lamps, chrome front and rear bumpers, CornerStep rear bumper, and dealer-installed chrome assist steps.
• Interior Comfort & Convenience: Jet Black interior, 40/20/40 split-bench front seat with storage, heated front seats, heated steering wheel, dual-zone climate control, power driver seat, rear underseat storage, remote start, and power windows with express features.
• Technology: GMC Premium 13.4" touch display (URD), 12" Driver Information Center (UDV), wireless phone projection, multiple USB ports, 120V interior and bed outlets, and OnStar with Wi-Fi hotspot capability.
• Safety & Driver Assistance: Sierra HD Pro Safety with Forward Collision Alert, Lane Departure Warning, Front Pedestrian Braking, Automatic Emergency Braking, Following Distance Indicator, Teen Driver mode, HD Rear Vision Camera, LED cargo lighting, and tire pressure monitoring.
• Dealer-Installed Accessories: All-weather floor liners, splash guards, rear underseat storage box, and winter grille cover for added durability.

Expert Insights

According to reviews from Kelley Blue Book and Edmunds, the Duramax-equipped Sierra HD lineup remains one of the most capable and reliable heavy-duty trucks on the market thanks to its high-output diesel engine, robust towing technologies, and refined driver-assist features. The 2026 SLE trim offers impressive value by combining work-ready durability with an upscale, comfortable cabin.

Take the Next Step

Test drive this 2026 GMC Sierra 3500HD SLE Crew Cab 4WD today at Beadle Chevrolet – GMC in Mobridge, SD. Call 605-845-7277 to check availability or request pricing. If you're coming from Aberdeen, Pierre, or Bismarck, you'll enjoy a quick drive and the outstanding small-town service our customers love.