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2024 GMC Sierra 2500HD towing capacity

The 2024 GMC Sierra 2500HD tows 14,500 lbs to 20,000 lbs depending on how it's built. The top number needs the 6.6L Duramax Turbo Diesel V8. Requires available Integrated Trailer Brake Controller, 18" or 20" wheels and tires and spray-on bed liner.

✓ From Sierra HD Models 2024 Features, Specs and Options, p. 18 ↗Checked 2026-09-272026202520242023202220212020

GMC Sierra 2500HD
Photo: HJUdall, CC0, via Wikimedia Commons
20,000
Max towing, lbs
14,500
Lowest rating, lbs
50
Configurations
22,430
5th-wheel max, lbs

Try it

Will it pull your trailer?

Use the trailer's GVWR (on its VIN sticker) if you don't know what it weighs loaded — the dry weight leaves out water, propane and gear.

Yes, in every configuration

Across all 50 configurations in the maker's guide.

▲ top rating 20,000 lbs

  • Tongue weight ≈ 1,100 lbs — 10% of the loaded trailer, the figure Ford's towing guide uses (no more than 200 lbs up to 2,000 lbs). It counts against your payload, together with passengers and cargo.
  • ✓ up to 90% of the rating · ! 90–100% (little room for cargo, hills, wind — common advice, not a GMC rule) · ✕ over the rating.

Read this before you buy

Why the numbers differ

  • Engine choice moves the top rating from 16,000 lbs (6.6L Gas V8) to 20,000 lbs (6.6L Duramax Turbo Diesel V8).

  • With the tow package the 6.6L Duramax Turbo Diesel V8 goes from 18,500 lbs to 20,000 lbs — it requires Max Trailering Package. p. 18 ↗

  • The version counts too: 10,000-lb GVWR and under, 18" or 20" wheels is rated 3,500 lbs higher than 10,000-lb GVWR and under, 17" wheels with everything else the same (6.6L Duramax Turbo Diesel V8 · Crew Cab Standard Bed · 10,000-lb GVWR and under, 18" or 20" wheels · 2WD). p. 21 ↗

  • The body style counts too: Crew Cab Standard Bed is rated 5,500 lbs higher than Regular Cab Long Bed with everything else the same (6.6L Duramax Turbo Diesel V8 · Crew Cab Standard Bed · 2WD). p. 18 ↗

  • The drivetrain counts too: 2WD is rated 300 lbs higher than 4WD with everything else the same (6.6L Duramax Turbo Diesel V8 · Double Cab Long Bed · 2WD). p. 18 ↗

  • Up 1,500 lbs from the 2023 model's top rating of 18,500 lbs.

In real life

What 20,000 lbs means in trailers

Ford's towing guide sorts trailers into four weight classes; the classes describe the trailer, so they apply to any tow vehicle. With the right configuration the Sierra 2500HD reaches:

  1. Class I✓ Yes

    up to 2,000 lbs

    Small folding camping trailers and trailers for small boats, motorcycles and snowmobiles.

    2026 Ford RV & Trailer Towing Guide, p. 4 ↗

  2. Class II✓ Yes

    2,001–3,500 lbs

    Large folding camping trailers, single-axle, small- to medium-length (up to 18-ft.) trailers.

    2026 Ford RV & Trailer Towing Guide, p. 4 ↗

  3. Class III✓ Yes

    3,501–5,000 lbs

    Dual-axle or large single-axle travel trailers.

    2026 Ford RV & Trailer Towing Guide, p. 4 ↗

  4. Class IVUp to 20,000

    over 5,000 lbs

    Largest travel and 5th-wheel trailers made for recreation.

    2026 Ford RV & Trailer Towing Guide, p. 4 ↗

Real trailers

Can the Sierra 2500HD pull these?

Weights are what each trailer maker publishes (retrieved 2026-09-27). We compare the trailer's GVWR — the most it may weigh loaded — with each Sierra 2500HD configuration's rating, and never a dry weight when a GVWR exists.

Compare

Towing capacity by engine

6.6L Duramax Turbo Diesel V814,500 – 20,000 lbs

26 configurations

6.6L Gas V814,500 – 16,000 lbs

24 configurations

Orange = the range across that engine's configurations. Bars start at zero.

Fine print, made plain

What the rating assumes

Every rating assumes a 150-lb driver and passenger and no other cargo. Add people, gear or accessories and the trailer you can tow goes down by the same amount.

New to towing?

The five weights, in one picture

Tongue weightLoaded trailer weightPayloadGVWR: the loaded truckGCWR: truck + trailer together
Loaded trailer weight — must stay under the towing rating
The rating “It assumes a towing vehicle with any mandatory options, no cargo, tongue load of 10% (conventional trailer) or king pin weight of 15% (5th-wheel trailer), and driver and passenger (150 lbs. each).” Weight of additional options, passengers, cargo and hitch must be deducted from this weight. p. 7 ↗
Tongue weight — the part of the trailer pressing on the hitch
“For trailers up to 2,000 lbs., tongue load not to exceed 200 lbs. For conventional trailers over 2,000 lbs., tongue load is 10% of loaded trailer weight. For 5th-wheel trailers, king pin weight is 15% of loaded trailer weight.” p. 7 ↗
Payload — people and cargo the truck can carry
“Payload is the combined maximum allowable weight of cargo and passengers that the vehicle is designed to carry. It is the Gross Vehicle Weight Rating minus the Base Curb Weight.” And: “When towing, trailer tongue load or king pin weight is also part of the Cargo Weight.” p. 6 ↗
GVWR and GCWR — the two ceilings
“Gross Vehicle Weight Rating (GVWR) is the maximum allowable weight of the fully-loaded vehicle (including passengers and cargo).” “Gross Vehicle Weight PLUS Loaded Trailer Weight EQUALS Gross Combination Weight (GCW) GCW must not exceed GCWR.” Your GVWR is on the label on the driver's door jamb. p. 6 ↗

Towing it behind a motorhome?

Can you flat tow a 2024 GMC Sierra 2500HD? Some versions

GMC allows it for: 4WD with 2-speed transfer case.

Steps and conditions →

From the maker's table

All 100 configurations

Conventional towing:
EngineBodyTrimDriveMax trailerGCWRSource
6.6L Duramax Turbo Diesel V8Crew Cab Standard Bed—2WD20,0001230,000p. 18 ↗
6.6L Duramax Turbo Diesel V8Crew Cab Standard Bed—4WD20,0001230,000p. 18 ↗
6.6L Duramax Turbo Diesel V8Crew Cab Long Bed—2WD20,0001230,300p. 18 ↗
6.6L Duramax Turbo Diesel V8Crew Cab Long Bed—4WD20,0001230,000p. 18 ↗
6.6L Duramax Turbo Diesel V8Crew Cab Standard Bed—2WD18,50027,500p. 18 ↗
6.6L Duramax Turbo Diesel V8Crew Cab Standard Bed—4WD18,500327,500p. 18 ↗
6.6L Duramax Turbo Diesel V8Crew Cab Long Bed—2WD18,50027,500p. 18 ↗
6.6L Duramax Turbo Diesel V8Crew Cab Long Bed—4WD18,500427,500p. 18 ↗
6.6L Duramax Turbo Diesel V8Crew Cab Standard Bed10,000-lb GVWR and under, 18" or 20" wheels2WD18,00026,000p. 21 ↗
6.6L Duramax Turbo Diesel V8Double Cab Long Bed—2WD17,90026,000p. 18 ↗
6.6L Duramax Turbo Diesel V8Crew Cab Standard Bed10,000-lb GVWR and under, 18" or 20" wheels4WD17,80026,000p. 21 ↗
6.6L Duramax Turbo Diesel V8Crew Cab Long Bed10,000-lb GVWR and under, 18" or 20" wheels2WD17,80026,000p. 21 ↗
  1. Requires available Integrated Trailer Brake Controller, 18" or 20" wheels and tires and spray-on bed liner.
  2. Requires Max Trailering Package.
  3. AT4 max conventional rating is 12,000 lbs when equipped with LT275/70R18 mud-terrain, blackwall tires. AT4 max fifth-wheel/gooseneck rating is 17,300 lbs. Denali max fifth-wheel/gooseneck rating is 17,600 lbs. Denali Ultimate max fifth-wheel/gooseneck rating is 17,200 lbs.
  4. AT4 max conventional rating is 12,000 lbs when equipped with LT275/70R18 mud-terrain, blackwall tires. AT4 max fifth-wheel/gooseneck rating is 18,000 lbs. Denali max fifth-wheel/gooseneck rating is 18,400 lbs. Denali Ultimate max fifth-wheel/gooseneck rating is 17,900 lbs.
  5. AT4 max conventional rating is 12,000 lbs when equipped with LT275/70R18 mud-terrain, blackwall tires. AT4 max fifth-wheel/gooseneck rating is 18,000 lbs. Denali max fifth-wheel/gooseneck rating is 18,000 lbs.
  6. AT4 max conventional rating is 12,000 lbs when equipped with LT275/70R18 mud-terrain, blackwall tires. AT4 max fifth-wheel/gooseneck rating is 17,900 lbs. Denali max fifth-wheel/gooseneck rating is 17,900 lbs.

Weights in lbs. “Not listed” means the maker printed no GCWR for that configuration — we don't estimate one.

5th-wheel / gooseneck:
EngineBodyTrimDriveMax trailerGCWRSource
6.6L Duramax Turbo Diesel V8Regular Cab Long Bed—2WD22,4301230,000p. 18 ↗
6.6L Duramax Turbo Diesel V8Crew Cab Long Bed—2WD22,0701230,300p. 18 ↗
6.6L Duramax Turbo Diesel V8Regular Cab Long Bed—4WD22,0501230,000p. 18 ↗
6.6L Duramax Turbo Diesel V8Crew Cab Standard Bed—4WD21,60014230,000p. 18 ↗
6.6L Duramax Turbo Diesel V8Crew Cab Standard Bed—2WD21,5101230,000p. 18 ↗
6.6L Duramax Turbo Diesel V8Crew Cab Long Bed—4WD21,50016230,000p. 18 ↗
6.6L Duramax Turbo Diesel V8Crew Cab Standard Bed—2WD19,20027,500p. 18 ↗
6.6L Duramax Turbo Diesel V8Crew Cab Long Bed—2WD19,20027,500p. 18 ↗
6.6L Duramax Turbo Diesel V8Crew Cab Standard Bed—4WD19,100327,500p. 18 ↗
6.6L Duramax Turbo Diesel V8Crew Cab Long Bed—4WD19,000527,500p. 18 ↗
6.6L Gas V8Regular Cab Long Bed—2WD18,70026,000p. 20 ↗
6.6L Gas V8Double Cab Standard Bed—2WD18,60026,000p. 20 ↗
  1. Requires available Integrated Trailer Brake Controller, 18" or 20" wheels and tires and spray-on bed liner.
  2. Requires Max Trailering Package.
  3. AT4 max conventional rating is 12,000 lbs when equipped with LT275/70R18 mud-terrain, blackwall tires. AT4 max fifth-wheel/gooseneck rating is 17,300 lbs. Denali max fifth-wheel/gooseneck rating is 17,600 lbs. Denali Ultimate max fifth-wheel/gooseneck rating is 17,200 lbs.
  4. AT4 max rating is 20,800 lbs. Denali max rating is 19,900 lbs. Denali Ultimate max rating is 19,300 lbs.
  5. AT4 max conventional rating is 12,000 lbs when equipped with LT275/70R18 mud-terrain, blackwall tires. AT4 max fifth-wheel/gooseneck rating is 18,000 lbs. Denali max fifth-wheel/gooseneck rating is 18,400 lbs. Denali Ultimate max fifth-wheel/gooseneck rating is 17,900 lbs.
  6. AT4 max rating is 21,190 lbs. Denali max rating is 19,820 lbs. Denali Ultimate max rating is 19,190 lbs.
  7. AT4 max conventional rating is 12,000 lbs when equipped with LT275/70R18 mud-terrain, blackwall tires. AT4 max fifth-wheel/gooseneck rating is 18,000 lbs. Denali max fifth-wheel/gooseneck rating is 18,000 lbs.
  8. AT4 max conventional rating is 12,000 lbs when equipped with LT275/70R18 mud-terrain, blackwall tires. AT4 max fifth-wheel/gooseneck rating is 17,900 lbs. Denali max fifth-wheel/gooseneck rating is 17,900 lbs.

Weights in lbs. “Not listed” means the maker printed no GCWR for that configuration — we don't estimate one.

More GMC towing capacities

Questions people ask

What is the towing capacity of the 2024 GMC Sierra 2500HD?

From 14,500 lbs to 20,000 lbs, depending on engine, axle ratio, body and drive. The 20,000 lbs top rating is for the 6.6L Duramax Turbo Diesel V8 · Crew Cab Standard Bed · 2WD (Requires available Integrated Trailer Brake Controller, 18" or 20" wheels and tires and spray-on bed liner. Requires Max Trailering Package).

Does the 2024 GMC Sierra 2500HD need a tow package?

GMC's guide lists no separate package requirement for this model.

How much tongue weight can the 2024 GMC Sierra 2500HD handle?

Not listed in the maker's guide.

Can you flat tow a 2024 GMC Sierra 2500HD?

Only some versions: 4WD with 2-speed transfer case.

Citing these numbers?

Can Tow That. "2024 GMC Sierra 2500HD Towing Capacity." From Sierra HD Models 2024 Features, Specs and Options, PDF modified 2024-05-30. https://cantowthat.com/gmc/sierra-2500hd/2024

Source: Sierra HD Models 2024 Features, Specs and Options (General Motors (GMC), PDF modified 2024-05-30; retrieved 2026-09-27). Page links open the PDF at the page each number is printed on.

100 ratings checked against the PDFHow we verify