Which Heavy Duty is Right For You?
GMC Sierra Heavy Duty Lineup
2025 Sierra
2500 HD
2025 Sierra
3500 HD
Max Towing Capacity
Up to 22,500 lbs (diesel)
Up to 36,000 lbs (diesel + DRW)
Max Payload Capacity
Up to 4,178 lbs
Up to 7,442 lbs (gas DRW)
Drivetrain Options
SRW, 4WD available
SRW, or DRW, 4WD available
Best For
Contractors, large trailers, daily heavy hauling
Commercial use, 5th wheel/gooseneck towing, max loads
Trim Availability
Pro, SLE, SLT, AT4, Denali, Denali Ultimate
Same as 2500 HD with DRW capability
Built for demanding tasks with all-day comfort and next-gen tech, the Sierra 2500 HD blends brute strength with elevated convenience. Whether towing the boat or loading up for work, it's ready for whatever the day throws your way.
Max
towing up to 22,500 lbs when equipped with the available 6.6L Duramax®
Turbo-Diesel V8
Standard
10-speed Allison® automatic transmission for smooth, responsive shifts
Hands-free
Super Cruise™ available with trailering capability on Denali trims
Up
to 14 camera views, including Transparent Trailer View and Hitch Guidance
Available
trims include: Pro, SLE, SLT, AT4, Denali, Denali Ultimate
Up
to 14 camera views, including Transparent Trailer View and Hitch Guidance
Up to
36,000 lbs of max towing when properly equipped with DRW and Duramax®
Diesel
Available
Dual Rear Wheel (DRW) configuration for increased stability under load
Standard
10-speed Allison® transmission across all engines
Integrated
gooseneck/5th-wheel prep package with bed-view camera and in-bed 120V
outlet
Best-in-class
max payload up to 7,442 lbs (gas DRW model)
Available
Denali Ultimate interior with full-grain leather, massaging seats, and
real wood trim
Capture the Adventure
From the refined power of the Sierra 2500 HD to the unmatched muscle of the Sierra 3500 HD, the 2025 GMC Sierra Heavy Duty lineup delivers performance you can trust-no matter the load. Visit Malouf GMC in North Brunswick, NJ to explore both models, compare features, and drive home the HD truck that's built for your lifestyle.