New 2026 GMC Sierra 2500 HD AT4 For Sale CONCORD, CA

2026 GMC Sierra 2500HD AT4 4WD for Sale in Concord, CAThis new 2026 GMC Sierra 2500HD AT4 Crew Cab 4WD at Lehmers Concord GMC is built for drivers who need heavy-duty diesel strength, off-road confidence and premium comfort in one serious truck. With its Duramax Turbo-Diesel V8, Allison automatic transmission and AT4-focused capability, this Sierra HD is ready for towing support, job-site use, weekend recreation and long Bay Area drives.FEATURE HIGHLIGHTS• Duramax Turbo-Diesel V8 heavy-duty power• Allison automatic transmission• Crew Cab 4WD configuration• AT4 off-road equipment with Rancho shocks and skid plates• Jet Black interior with Kalahari accents• Heated and ventilated front leather seating surfaces• Heated wrapped steering wheel• 13.4-inch diagonal Premium GMC Infotainment System with Google built-in compatibility• 12.3-inch diagonal color Driver Information CenterThis Sierra 2500HD AT4 is a strong fit for Bay Area drivers who want a truck that can work hard without feeling stripped down. It makes sense for contractors, ranch property owners, boat owners, RV shoppers, outdoor families and anyone who wants confident 4WD capability for steep roads, wet weather, dirt access roads and mountain trips. The AT4 trim gives this heavy-duty GMC a more rugged personality while keeping the cabin comfortable enough for daily driving.Inside, the AT4 cabin is designed to make long days easier. The large center touchscreen helps keep navigation, media and phone functions easy to reach, while the digital Driver Information Center gives the driver a clean view of key information. Heated and ventilated front seats, a heated steering wheel and Kalahari-accented trim add a premium feel, and the Crew Cab layout gives passengers useful space for commutes, family travel or work crews.The Sierra HD AT4 brings together the durability expected from a 2500HD truck with the extra confidence of off-road-focused hardware and 4WD. For drivers moving between Concord, Walnut Creek, job sites, boat ramps, campsites and Sierra Nevada weekend routes, this truck offers the kind of strength and usability that makes a heavy-duty pickup easier to live with every day.For shoppers comparing a new GMC Sierra 2500HD AT4, Crew Cab 4WD truck, Duramax diesel pickup or off-road-ready heavy-duty truck in the San Francisco Bay Area, this 2026 GMC Sierra 2500HD offers diesel capability, AT4 style, advanced cabin technology and practical heavy-duty confidence.Contact Lehmers Concord GMC to confirm availability or schedule a test drive.Looking for a new 2026 GMC Sierra 2500HD near Richmond, Dublin or Vacaville? Visit Lehmers Concord GMC, a convenient Bay Area GMC destination for drivers near Hanlees Hilltop GMC, Dublin Buick GMC and GMC of Vacaville.Family owned and operated for five generations, Lehmers Concord GMC has served Concord and the San Francisco-Oakland Bay Area since 1928. We proudly assist GMC shoppers from Walnut Creek, Pleasant Hill, Martinez, Richmond, Dublin, Vacaville and surrounding communities.May not represent actual vehicle. (Options, colors, trim and body style may vary) The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.Price includes: $1000 - Buick & GMC Consumer Cash Program. Exp. 08/03/2026