GMC Sierra 3500 HD Towing Capacity
Built for Serious Towing
Select Model Year
Choose a year to view all configurations and detailed towing specs
Know Your Sierra 3500 HD Configuration?
Enter your exact setup in the tow calculator to see which RVs fit your towing and payload capacity.
About Our Sierra 3500 HD Data
Always verify your specific vehicle's capacity using the door jamb sticker (yellow label) which shows YOUR exact configuration's limits.
GMC Sierra 3500 HD Towing Questions
What's the maximum towing capacity of the GMC Sierra 3500 HD?
The GMC Sierra 3500 HD has a maximum towing capacity of 20,000 lbs, but this varies by year and configuration. Cab style, drivetrain, and engine all affect your specific number.
How much should I actually tow with a Sierra 3500 HD?
We recommend staying at 80% of your max capacity — that's around 16,000 lbs for the Sierra 3500 HD. This gives you a safety margin and is easier on your truck, especially in hills and wind.
What RVs can I tow with a GMC Sierra 3500 HD?
With up to 20,000 lbs capacity, the Sierra 3500 HD is popular for large fifth wheels, toy haulers. Use our tow calculator to find specific models that match your configuration.
Does year/configuration really matter that much?
Absolutely. Different years and configurations can vary by thousands of pounds in towing capacity. Select your specific year above to see exact specs — don't guess based on general numbers.
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