What you need to tow with a 2026 GMC Sierra 2500 HD
The 2026 GMC Sierra 2500 HD is rated from 14,500 to 20,000 lb depending on engine, cab, bed and drivetrain — a 38% spread. Find your configuration below, then size the hitch to the trailer you are towing, not to the truck's maximum.
A single towing number for this truck would be a lie. 20,000 lb applies to one exact configuration when properly equipped. Same badge, different axle or cab, and the real figure can be thousands of pounds lower. That is why every row below carries its configuration.
2026 GMC Sierra 2500 HD towing by configuration
| Engine | Cab | Bed | Drive | GCWR (lb) | Max trailer (lb) | Requires |
|---|---|---|---|---|---|---|
| Duramax 6.6L Turbo-Diesel V8 | Crew Cab | Standard Bed | 2WD | 30,000 | 20,000 | Requires available Max Trailering Package. |
| Duramax 6.6L Turbo-Diesel V8 | Crew Cab | Standard Bed | 4WD | 30,000 | 20,000 | Requires available Max Trailering Package. |
| Duramax 6.6L Turbo-Diesel V8 | Crew Cab | Long Bed | 4WD | 30,000 | 20,000 | Requires available Max Trailering Package. |
| Duramax 6.6L Turbo-Diesel V8 | Crew Cab | Long Bed | 2WD | 30,300 | 20,000 | Requires available Max Trailering Package. |
| Duramax 6.6L Turbo-Diesel V8 | Crew Cab | Standard Bed | 2WD | 27,500 | 18,500 | Requires available 18" or 20" wheels. |
| Duramax 6.6L Turbo-Diesel V8 | Crew Cab | Long Bed | 2WD | 27,500 | 18,500 | Requires available 18" or 20" wheels. |
| Duramax 6.6L Turbo-Diesel V8 | Crew Cab | Standard Bed | 4WD | 27,500 | 18,500 | Requires available 18" or 20" wheels. |
| Duramax 6.6L Turbo-Diesel V8 | Crew Cab | Long Bed | 4WD | 27,500 | 18,500 | Requires available 18" or 20" wheels. |
| Duramax 6.6L Turbo-Diesel V8 | Crew Cab | Standard Bed | 4WD | 27,500 | 18,400 | Requires available 18" or 20" wheels. AT4X AEV Edition maximum trailer rating. |
| Duramax 6.6L Turbo-Diesel V8 | Crew Cab | Standard Bed | 2WD | 26,000 | 18,000 | — |
| Duramax 6.6L Turbo-Diesel V8 | Double Cab | Long Bed | 2WD | 26,000 | 17,900 | — |
| Duramax 6.6L Turbo-Diesel V8 | Crew Cab | Long Bed | 2WD | 26,000 | 17,800 | — |
| Duramax 6.6L Turbo-Diesel V8 | Crew Cab | Standard Bed | 4WD | 26,000 | 17,800 | — |
| Duramax 6.6L Turbo-Diesel V8 | Crew Cab | Long Bed | 4WD | 26,000 | 17,700 | — |
| Duramax 6.6L Turbo-Diesel V8 | Double Cab | Long Bed | 4WD | 26,000 | 17,600 | — |
| 6.6L V8 Gas | Crew Cab | Standard Bed | 2WD | 26,000 | 16,000 | Requires available 18" or 20" wheels. |
| 6.6L V8 Gas | Crew Cab | Long Bed | 2WD | 26,000 | 16,000 | Requires available 18" or 20" wheels. |
| 6.6L V8 Gas | Crew Cab | Standard Bed | 4WD | 26,000 | 16,000 | Requires available 18" or 20" wheels. |
| 6.6L V8 Gas | Crew Cab | Long Bed | 4WD | 26,000 | 16,000 | Requires available 18" or 20" wheels. |
| 6.6L V8 Gas | Double Cab | Long Bed | 2WD | 26,000 | 16,000 | Requires available 18" or 20" wheels. |
| 6.6L V8 Gas | Double Cab | Long Bed | 4WD | 26,000 | 16,000 | Requires available 18" or 20" wheels. |
| 6.6L V8 Gas | Crew Cab | Standard Bed | 2WD | 24,500 | 14,500 | — |
| 6.6L V8 Gas | Crew Cab | Long Bed | 2WD | 24,500 | 14,500 | — |
| 6.6L V8 Gas | Crew Cab | Standard Bed | 4WD | 24,500 | 14,500 | — |
| 6.6L V8 Gas | Crew Cab | Long Bed | 4WD | 24,500 | 14,500 | — |
| 6.6L V8 Gas | Double Cab | Standard Bed | 2WD | 24,500 | 14,500 | — |
| 6.6L V8 Gas | Double Cab | Long Bed | 2WD | 24,500 | 14,500 | — |
| 6.6L V8 Gas | Double Cab | Standard Bed | 4WD | 24,500 | 14,500 | — |
| 6.6L V8 Gas | Double Cab | Long Bed | 4WD | 24,500 | 14,500 | — |
| 6.6L V8 Gas | Regular Cab | Long Bed | 2WD | 24,500 | 14,500 | — |
| 6.6L V8 Gas | Regular Cab | Long Bed | 4WD | 24,500 | 14,500 | — |
| 6.6L V8 Gas | Double Cab | Standard Bed | 2WD | 26,000 | 14,500 | Requires available 18" or 20" wheels. |
| 6.6L V8 Gas | Double Cab | Standard Bed | 4WD | 26,000 | 14,500 | Requires available 18" or 20" wheels. |
| 6.6L V8 Gas | Regular Cab | Long Bed | 2WD | 26,000 | 14,500 | Requires available 18" or 20" wheels. |
| 6.6L V8 Gas | Regular Cab | Long Bed | 4WD | 26,000 | 14,500 | Requires available 18" or 20" wheels. |
| Duramax 6.6L Turbo-Diesel V8 | Double Cab | Standard Bed | 2WD | 26,000 | 14,500 | — |
| Duramax 6.6L Turbo-Diesel V8 | Double Cab | Standard Bed | 4WD | 26,000 | 14,500 | — |
| Duramax 6.6L Turbo-Diesel V8 | Regular Cab | Long Bed | 2WD | 26,000 | 14,500 | — |
| Duramax 6.6L Turbo-Diesel V8 | Regular Cab | Long Bed | 4WD | 26,000 | 14,500 | — |
| Duramax 6.6L Turbo-Diesel V8 | Regular Cab | Long Bed | 2WD | 30,000 | 14,500 | Requires available Max Trailering Package. |
| Duramax 6.6L Turbo-Diesel V8 | Regular Cab | Long Bed | 4WD | 30,000 | 14,500 | Requires available Max Trailering Package. |
Source: 2026 GMC Sierra 2500 HD manufacturer trailering chart · last verified 2026-08-29
The kit for this truck
Towing hardware is sized to the trailer. Pick the weight you are actually pulling:
Tow 5,000 lb with a Sierra 2500 HDTow 6,000 lb with a Sierra 2500 HDTow 7,000 lb with a Sierra 2500 HDTow 8,000 lb with a Sierra 2500 HDTow 9,000 lb with a Sierra 2500 HDTow 10,000 lb with a Sierra 2500 HDTow 12,000 lb with a Sierra 2500 HDTow 14,000 lb with a Sierra 2500 HD
At this truck's ceiling (20,000 lb) you would be in Class 5 CD hardware with a weight-distributing hitch and a brake controller. See the 14,000 lb kit for this vehicle →
Before you trust any of these numbers
- Your payload governs. Addition of trailer hitch weight cannot cause vehicle weights to exceed Rear Gross Axle Weight Rating (RGAWR) or Gross Vehicle Weight Rating (GVWR). These ratings can be found on the certification label located on the driver door or doorframe.
- Tongue weight is not free. 10–15% of the trailer sits on your rear axle and comes out of payload, not out of tow rating.
- Engines in this chart: 6.6L V8 Gas · Duramax 6.6L Turbo-Diesel V8. If yours is not listed, this chart does not cover your configuration.
Common questions
How much can a 2026 GMC Sierra 2500 HD tow?
Between 14,500 and 20,000 lb depending on the exact configuration — that is a 38% spread, so a single headline number is misleading. The 20,000 lb figure requires one specific combination of engine, cab, bed and drivetrain. Look up your own configuration in the table on this page.
What hitch do I need for a 2026 GMC Sierra 2500 HD?
Size the hitch to the trailer, not the truck. For a trailer up to 10,000 lb you need Class 4 hardware with a 2 in receiver, plus a weight-distributing hitch with sway control. The truck's rating is a ceiling you must stay under, not the thing you buy for.
Why is there no payload number on this page?
Because payload is specific to your individual vehicle, not to the model. It is printed on the certification label in your driver's door jamb. Published sources disagree with manufacturers in both directions on payload, so stating one per model would be wrong for most trucks. Your tongue weight counts against payload, which is why it matters.