Used GMC Sierra 3500HDs for sale in Orangeville, ON

Step into a truck that doesn’t simply do the job, it dominates it. The 2021 Sierra 3500HD Denali crew cab 4x4 is built with professional-grade capability and premium refinement, tailored for those who demand both muscle and sophistication.

Under the hood, you’ll find the legendary 6.6 Duramax diesel, up to 445 HP and 910 lb-ft of torque. Paired with an advanced automatic transmission and rugged 4x4 drivetrain, this Denali is ready to tow heavy, haul strong, and conquer the toughest terrain. From its bold exterior to its elite interior, every detail reflects Denali prestige. The signature chrome-accented grille, large polished wheels, and led lighting make a bold statement.

Inside, you’re enveloped in premium leather seating, polished metal and wood-grain accents, heated/ventilated front seats, and the intuitive infotainment suite featuring a high-resolution touchscreen, apple CarPlay, Android Auto, and premium audio.

 Luxury meets practicality here: advanced towing technology, smart connectivity, roomy crew-cab comfort, and Denali-exclusive amenities mean this truck works hard and feels exceptional every time you climb in. Whether pulling your largest trailer or simply stepping out in style, you’ll feel the difference.

The 2021 Sierra 3500hd Denali is more than just heavy duty, it’s heavy luxury. Strong. Stylish. Unstoppable. Certified.

Bray Motors has been proudly serving the North since 1954! This vehicle is an example of the great quality CERTIFIED PREOWNED vehicles that we have ready for you to enjoy here at Bray Motors. If you are shopping for New or Used, our professional sales staff and expert service technicians will make your next vehicle purchase an enjoyable experience. We carry a wide selection of in-stock New, and Certified Pre-Owned GMC, Chevrolet and Buick models, so finding the right one for you will be a breeze! We have a comfortable and inviting customer lounge, with free wi-fi and an assortment of cold and hot drinks for your convenience. Call or visit us today!!!

SLE, DUALLY, 6.6L V8 TURBO DURAMAX DIESEL, ALLISON 10-SPD AUTOMATIC TRANSMISSION, CREW CAB, 4X4, FRONT BENCH SEATS, 6-PASSENGER, CHROME BUMPERS, 13.4-INCH TOUCHSCREEN WITH GOOGLE BUILT-IN, SMART PHONE INTEGRATION, KEYLESS ENTRY, POWER ADJUSTABLE DRIVER SEAT, HEATED DRIVER AND PASSENGER SEAT, HEATED STEERING WHEEL, ADAPTIVE CRUISE CONTROL REAR SLIDING POWER WINDOWS, REAR SEAT STORAGE PACKAGE, FORWARD COLLISION ALERT, LANE DEPARTURE WARNING, HD REAR VISION CAMERA, POWER WINDOWS/LOCKS/MIRRORS, TRAILER BRAKE CONTROLLER, TRAILERING PACKAGE WITH HITCH, GOOSENECK/5TH WHEEL PREP PACKAGE, SPRAY-ON BEDLINER, 1-OWNER, CERTIFIED!

This 2025 Sierra 3500HD SLE is built for serious towing, long-haul comfort, and everyday practicality. It’s powered by the 6.6L V8 Turbo Duramax Diesel paired with the Allison 10-speed automatic transmission, giving you strong pulling power, smooth shifts, and proven durability. The 4x4 Crew Cab setup delivers plenty of interior space along with confident traction in any season. Inside, the truck seats six with front bench seats and offers a clean, functional layout. The centerpiece is the 13.4-inch touchscreen with Google built-in, providing smart navigation, voice control, and seamless smartphone integration. Convenience features include keyless entry, power-adjustable driver seat, heated front seats, and a heated steering wheel for cold mornings. A rear sliding power window and rear seat storage package add extra versatility. Safety and driver assistance are well covered with adaptive cruise control, forward collision alert, lane departure warning, and an HD rear vision camera. You also get power windows, locks, and mirrors, plus a factory trailer brake controller for added towing confidence. For hauling, this truck is fully equipped: trailering package with hitch, Gooseneck/5th wheel prep package, and a durable spray-on bedliner that keeps the box protected. A clean, well-kept 1-owner unit. Certified