2024 GMC Sierra 2500 HD Towing Capacity & Specs
TL;DR Summary
The 2024 GMC Sierra 2500 HD redefines heavy-duty pickup performance with conventional towing capacities reaching up to 20000 lbs and maximum payload ratings up to 4039 lbs. Standard Allison 10-speed transmissions paired with gas or enhanced Duramax diesel V8 engines deliver unmatched heavy-haul stability and refined capability.
Trim specifications
All weights in pounds. Ratings depend on the trim and towing configuration.
| Trim / Package | Engine / Fuel | Max Towing | Max Payload | GCWR | GVWR | Curb Weight | Tongue Weight |
|---|---|---|---|---|---|---|---|
| Pro / SLE / SLT / AT4 / Denali (2WD) | 6.6L V8 Gas |
16,000 lb | 4,039 lb | 26,000 lb | 10,000 lb | 6,105 lb | 1,600 lb |
| Pro / SLE / SLT / AT4 / Denali / Denali Ultimate / AT4X (4WD) | 6.6L V8 Gas |
18,700 lb | 3,884 lb | 26,000 lb | 10,000 lb | 6,418 lb | 1,870 lb |
| Pro / SLE / SLT / AT4 / Denali (2WD) | 6.6L Duramax Turbo-Diesel V8 Diesel |
18,500 lb | 3,615 lb | 30,000 lb | 10,550 lb | 6,860 lb | 1,850 lb |
| Pro / SLE / SLT / AT4 / Denali / Denali Ultimate / AT4X (4WD) | 6.6L Duramax Turbo-Diesel V8 Diesel |
20,000 lb | 3,407 lb | 30,000 lb | 10,900 lb | 7,173 lb | 2,000 lb |
In-Depth 2024 GMC Sierra 2500 HD Towing Review
The 2024 GMC Sierra 2500 HD towing capacity spans from 16000 to 20000 lbs for conventional trailering across its upgraded heavy-duty pickup lineup, providing exceptional pull strength for commercial fleets, equipment transport, and luxury RV trailering. Overall capability is driven by advanced powertrain and torque specs, starting with the standard naturally aspirated 6.6L V8 gas engine that produces 401 horsepower at 5200 RPM and 464 lb-ft of torque at 4000 RPM, now mated to an Allison 10-speed automatic transmission for seamless power delivery. For maximum heavy-duty towing authority, the available 6.6L Duramax Turbo-Diesel V8 engine delivers an upgraded 470 horsepower at 2800 RPM and an immense 975 lb-ft of torque at 1600 RPM, backed by an Allison 10-speed automatic transmission with integrated auto grade braking. Depending on cab style, bed length, trim selection, and drive layout, the Sierra 2500 HD max payload rating ranges from 3407 to 4039 lbs. Structural weight boundaries reflect this heavy-duty chassis architecture, with Gross Vehicle Weight Ratings (GVWR) spanning from 10000 to 11750 lbs and factory unladen curb weights ranging between 6105 and 7988 lbs.
Constructed on a fully boxed high-strength steel ladder frame with hydroformed front crossmembers, factory tow package specifications include an integrated electronic trailer brake controller, auxiliary engine oil and transmission cooling packages, StabiliTrak with trailer sway control, and GMC's ProGrade trailering system featuring available transparent trailer camera views. Gross Combination Weight Ratings (GCWR) for the 2500 HD series range from 26000 to 30000 lbs, with certified conventional hitch tongue weight limits extending between 1600 and 2000 lbs based on factory hitch standards. Heavy-duty rear axles, multi-leaf spring rear suspension geometry, and available two-speed four-wheel-drive transfer cases ensure outstanding chassis stability and maximum tire traction across demanding terrain. Offered across Pro, SLE, SLT, AT4, Denali, and the ultra-luxurious Denali Ultimate and off-road AT4X trims in 2WD and 4WD, the 2024 Sierra 2500 HD combines premium refinement with professional-grade towing strength.
Frequently Asked Questions
What is the maximum conventional towing capacity and hitch tongue weight limit for the 2024 GMC Sierra 2500 HD?
The 2024 GMC Sierra 2500 HD features a maximum conventional towing capacity ranging from 16,000 to 20,000 lbs across its powertrain and drivetrain configurations. Gasoline 6.6L V8 models deliver between 16,000 and 18,700 lbs of conventional towing capacity, while 6.6L Duramax Turbo-Diesel V8 models achieve between 18,500 and 20,000 lbs. Certified receiver hitch tongue weight limits range strictly from 1,600 to 2,000 lbs across the series.
How do engine output specifications compare between gas and diesel options on the 2024 GMC Sierra 2500 HD?
The 2024 GMC Sierra 2500 HD offers two distinct heavy-duty powertrains, both paired with an Allison 10-speed automatic transmission. The standard 6.6L V8 gas engine produces 401 HP at 5,200 RPM and 464 lb-ft of torque at 4,000 RPM. The upgraded 6.6L Duramax Turbo-Diesel V8 generates 470 HP at 2,800 RPM and an impressive 975 lb-ft of torque at 1,600 RPM for maximum low-end pulling power.
What payload capacities, Gross Vehicle Weight Ratings (GVWR), and curb weights apply to the 2024 GMC Sierra 2500 HD?
Across Pro, SLE, SLT, AT4, Denali, Denali Ultimate, and AT4X trims in 2WD and 4WD, the 2024 GMC Sierra 2500 HD provides a maximum payload capacity ranging from 3,407 to 4,039 lbs. Gross Vehicle Weight Ratings (GVWR) span from 10,000 to 11,750 lbs, supported by unladen factory curb weights ranging between 6,105 and 7,988 lbs.
What is the Gross Combination Weight Rating (GCWR) range for the 2024 GMC Sierra 2500 HD?
The Gross Combination Weight Rating (GCWR) for the 2024 GMC Sierra 2500 HD ranges from 26,000 to 30,000 lbs. Gasoline configurations carry a certified GCWR of 26,000 lbs, while 6.6L Duramax Turbo-Diesel models reach up to 30,000 lbs GCWR, establishing the absolute legal maximum weight limit for the truck, passengers, bed cargo, and trailer combined.
What factory chassis features support heavy-duty conventional towing safety on the 2024 GMC Sierra 2500 HD?
The 2024 GMC Sierra 2500 HD utilizes a fully boxed high-strength steel ladder frame, Allison 10-speed automatic transmission with auto grade braking, integrated electronic trailer brake controller, heavy-duty engine oil and transmission cooling, and StabiliTrak with trailer sway control. These integrated factory components maintain chassis composure when hauling conventional loads up to 20,000 lbs and tongue loads up to 2,000 lbs within legal GVWR limits.
Always confirm ratings for your exact configuration with the manufacturer and vehicle certification labels. Passenger, cargo and trailer tongue weight affect payload and towing limits.
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