Towing

GMC Sierra 3500HD towing capacity

The GMC Sierra 3500HD tows up to 36,000 lb when properly equipped (2020–present). Max with Duramax + gooseneck (dually).

GMC Sierra 3500HD · max towing

36,000 lb

Best case, properly equipped — your vehicle's rating is lower.

This is the maximum for the best-equipped Sierra 3500HD. Your exact rating is on the driver's door-jamb label and in the year-specific towing guide. Verify it before towing.

Check your trailer

Can your Sierra 3500HD tow your trailer?

Enter your fully-loaded trailer weight to compare against the GMC Sierra 3500HD's best-case maximum. Confirm your own vehicle's rating before towing.

Use the trailer's fully-loaded weight (GTW) — trailer + cargo + water + gear — not the empty/dry weight on the brochure.

Vehicle

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Maximum when properly equipped.

Your trailer vs this vehicle
Max towing (best case)—
Your loaded trailer—
Headroom left—
Capacity used—
Est. tongue weight (10–15%)—
This is a best-case maximum, not your truck's rating. The number above is the most this model can tow with the exact engine, axle, and tow package required. Your vehicle's real limit is lower and is on the driver's door label and in its year-specific towing guide. Always verify there before towing.
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FAQ

How much can a GMC Sierra 3500HD tow?

Up to 36,000 lb when properly equipped (2020–present) — Max with Duramax + gooseneck (dually).. That's the best-case maximum; most Sierra 3500HD trucks/SUVs are rated lower depending on engine, axle, and tow package. Check your driver's door-jamb label for your exact rating.

Is 36,000 lb the rating for my Sierra 3500HD?

Probably not — it's the highest figure for the best-equipped configuration. Your specific vehicle's towing capacity is on its door-jamb label and in the year-specific towing guide, and is the number you must obey.

What about tongue weight and passengers?

Tongue weight (about 10–15% of the loaded trailer) and everything in the cab — passengers, cargo, fuel — count against your payload and limits. Leave headroom rather than towing right at the maximum.

The GMC Sierra 3500HD figure is a best-case maximum for a properly-equipped configuration, provided as a reference. Your vehicle's actual towing capacity is lower and is on its door-jamb label and year-specific towing guide — always verify there before towing.