"Text 815-446-7319 for questions or to schedule a test drive. Text questions directly to sales at (815) 446-7319. ""Experience the Arnie Bauer Advantage: Trusted Family-Owned Values Since 1945."" At Arnie Bauer, we believe in empowering our customers with transparent pricing, exceptional service, and unmatched peace of mind. As a family-owned and operated dealership since 1945, we take pride in treating our customers like family, ensuring you receive the care and attention you deserve. Enjoy the confidence of our free lifetime engine warranty and trust that we never engage in price gouging, providing you with the best value for your hard-earned dollar. With two convenient locations, your journey to a new vehicle is not just a transactionit's a relationship built on trust and satisfaction. At Arnie Bauer, your dollar has more power. If you need a truck that is built to work hard every single day without overcomplicating things, this 2026 GMC Sierra 3500HD Pro at Arnie Bauer GMC in Wilmington, IL is exactly the kind of heavy-duty truck people are searching for. Finished in bold Cardinal Red with a durable Jet Black interior, this rear-wheel drive Sierra 3500HD Pro is designed for drivers who care about capability, reliability, and getting the job done right. Whether youre managing a fleet, towing equipment, hauling materials, or looking for a dependable work truck that can handle demanding jobs around Illinois, this Sierra HD is built for real-world use. Under the hood, the proven 6.6L V8 gasoline engine delivers strong performance and dependable power for towing, hauling, and everyday driving. Paired with the Allison 10-speed automatic transmission, this truck offers smooth shifting and the durability drivers expect from a GMC heavy-duty pickup. From job sites in Wilmington to highways around Joliet and Morris, this Sierra 3500HD is ready to work. Inside, the cabin is straightforward, comfortable, and functional. GMC designed this truck to make long days easier with features like a large touchscreen infotainment system, wireless Apple CarPlay and Android Auto, power windows and locks, cruise control, and convenient storage throughout the cabin. The split-bench seating gives you flexibility for passengers and gear while maintaining the durability needed for everyday use. What really makes this Sierra stand out is how practical it is for towing and commercial use. The integrated trailer brake controller, heavy-duty suspension setup, locking rear differential, all-terrain tires, and advanced GMC Pro Safety technologies help give drivers more confidence behind the wheel whether theyre towing equipment, hauling trailers, or navigating busy roads. Drivers searching for a GMC Sierra 3500HD Pro near Wilmington, Coal City, Morris, Joliet, or anywhere in the Chicagoland area are looking for a truck that is dependable, capable, and built to last. This Sierra delivers exactly that while still offering modern technology and comfort features that make daily driving easier. If you are looking for a new GMC Sierra 3500HD Pro for sale in Wilmington, IL, visit Arnie Bauer GMC today. We make it easy to shop online, explore financing options, value your trade, and find the right heavy-duty truck for your business or personal needs. This is the kind of truck people rely on every day because it was built with capability first. Tough, practical, dependable, and ready to go to work when you are. Price includes: $1000 - Purchase Allowance. Exp. 06/30/2026"