2025 GMC Sierra 2500

2025 GMC Sierra 2500HD AT4 Duramax Diesel 4x4 for SaleSome trucks look heavy-duty. This one actually is. If you need serious diesel towing capability but don't want to spend every mile in a basic work truck, this 2025 GMC Sierra 2500HD AT4 gives you a rare combination: Duramax power, an 8-foot bed, 4WD, off-road capability, and a premium leather interior.And with only 11,792 miles, it's barely been broken in.Under the hood is the 6.6L Duramax V8 Turbo-Diesel producing 470 horsepower and a massive 975 lb-ft of torque, paired with a 10-speed automatic transmission. This is the powertrain buyers search for when they're pulling a fifth-wheel camper, equipment trailer, livestock trailer, large boat, or other heavy load.This Sierra is listed with up to 18,500 pounds of towing capacity and has an 11,050-pound GVWR. Unlike many Crew Cab HD trucks, it also has the 98.3-inch 8-foot bed. If you've specifically been searching for a GMC 2500HD Crew Cab long bed, Duramax AT4, or diesel truck for serious towing, that's an important detail.The AT4 trim means capability doesn't stop when the pavement does. Four-wheel drive, hill descent control, all-terrain tires, and AT4-focused equipment make this truck a natural fit for farms, ranches, hunting property, construction sites, gravel roads, snow, mud, and pulling trailers into places where a highway-focused truck may struggle.Then there's the interior. This isn't a stripped-down diesel work truck. The Jet Black leather with Kalahari accents gives the AT4 its distinctive look, while heated and cooled front seats, heated steering wheel, navigation, wireless phone charging, Apple CarPlay, Android Auto, adaptive cruise control, automatic climate control, remote start, Wi-Fi capability, and premium technology make long trips considerably more comfortable.Towing technology is another strength. This Sierra includes a surround-view camera system, trailer camera capability, trailer blind-spot monitoring, trailer stability control, front and rear parking sensors, and a cargo camera. Those are features you'll appreciate when you're actually using a truck this size for what it was designed to do.At $74,500 out the door before tax, title, and registration with a $0 documentation fee, this truck is also worth comparing with what a similarly equipped new Duramax AT4 costs.If you're cross-shopping a Ford F-250 Power Stroke, Ram 2500 Cummins, Chevrolet Silverado 2500HD ZR2 or High Country, or another premium heavy-duty diesel, this Sierra belongs on the list. The combination of 975 lb-ft of torque, Crew Cab room, 8-foot bed, 4WD, and AT4 equipment is difficult to duplicate.You don't necessarily have to drive to Bethany to buy it. Pettijohn Auto Center can make delivery available to Kansas City, Kearney, St. Joseph, Cameron, Chillicothe, Maryville, Trenton, Des Moines, Omaha, and other communities throughout the region. Ask us about delivery, a personalized video walkaround, financing options, or a value for your trade.Pettijohn Auto Center is located in Bethany, Missouri, along I-35 between Kansas City and Des Moines. We've served Northwest Missouri since 1924 and charge a $0 documentation fee with no hidden dealer fees.Searching for a 2025 GMC Sierra 2500HD AT4 for sale, used Duramax AT4, GMC 2500 diesel long bed, Crew Cab 8-foot bed diesel, Sierra 2500HD near Kansas City, GMC diesel near Kearney MO, Duramax near Des Moines, fifth-wheel tow vehicle, or heavy-duty diesel truck under 15,000 miles? This one deserves a serious look.If you need the capability of an HD diesel but want a truck that's just as comfortable heading across the country as it is pulling a trailer across a field, this 2025 GMC Sierra 2500HD AT4 is built for the job.