Used 2025 GMC Sierra 3500HD

• One Previous Owner

An 8.2-foot box changes what you can carry, especially when the load is long enough to leave a shorter box hanging open. That full-length bed is the defining feature of this Black 2025 GMC Sierra 3500HD AT4 Crew Cab 4x4. The 6.6L Duramax turbo-diesel V8 and gooseneck/fifth-wheel prep point to a truck chosen with bigger jobs in mind. For Prince George drivers who need room for long loads and heavy trailers, this one deserves a closer look.

Performance and Mechanical

The Duramax and Allison combination is the setup many heavy-duty truck buyers seek out. The two-speed transfer case and automatic locking rear differential are valuable once snow, mud, or loose ground enters the picture.

• 6.6L Duramax turbo-diesel V8
• Allison 10-speed automatic
• 4-wheel drive
• 2-speed transfer case
• Automatic locking rear diff
• Integrated trailer brake
• Gooseneck/5th wheel prep
• Trailer sway control
• Hill start assist
• Engine block heater
• High idle switch
• 3.42 rear axle

Connectivity and Technology

Navigation runs directly through the 13.4-inch touchscreen, so directions stay on the dash even when your phone is tucked away. Bose audio handles music and podcasts across the cab.

• 13.4-inch colour touchscreen
• Google built-in
• Navigation capability
• Wireless Apple CarPlay
• Wireless Android Auto
• Bose premium audio
• Wireless charging
• Remote start
• Universal home remote

Interior

Cold mornings are easier on everyone with heated seating in both rows and a heated steering wheel up front. When summer arrives, ventilated front seats move air through the cushions.

• Jet Black/Kalahari leather
• Front bucket seats
• Heated/ventilated front seats
• Power front seats
• Driver memory
• Heated steering wheel
• Heated second-row seats
• Dual-zone climate control
• Power sunroof
• Auto-dimming rearview mirror

Exterior

At night, LED bed lighting saves you from reaching for a flashlight every time you need something from the box.

• Crew Cab with 8.2-foot box
• MultiPro tailgate
• Spray-on bed liner
• LED cargo bed lighting
• LED projector headlamps
• LED fog lamps
• Power-folding/extending mirrors
• Rain-sensing wipers
• Power sliding rear window
• LED roof marker lamps
• Off-road high-clearance steps

Safety and Security

HD Surround Vision is especially helpful when a truck this long needs to fit between parking lines or around obstacles. The bed-view camera lets you check cargo or watch a fifth-wheel connection from the cab.

• HD Surround Vision
• Rear vision camera
• Bed-view camera
• Adaptive cruise control
• Lane Keep Assist
• Trailer Side Blind Zone Alert
• Front and rear park assist
• Rear cross traffic alert
• Driver Safety Alert Seat
• Automatic emergency braking
• Forward collision alert
• Front pedestrian brakingPicture it backed under a fifth-wheel, loaded for a job, or simply parked in your driveway because this is the truck you wanted. A long-box one-ton can play a big role in what you are able to take on. Wood Wheaton can help you see whether this Sierra matches the plans you have in mind.