2026 GMC Sierra 3500HD towing capacity
Up to 20,000 lbs with a conventional ball hitch. That rating is for this configuration: Regular Cab 2WD DRW 8' box 142 in. conventional, 6.6L Duramax Turbo-Diesel V8, 2WD. The lowest-rated configuration in the same tables is 14,500 lbs, so the answer for your vehicle depends on how it is equipped.
Highest published rating20,000 lbsConventional (ball hitch). Lowest in the same tables: 14,500 lbs.
The top figure belongs to one specific build. Find the row that matches your engine, cab, drive and axle, and check the label on your driver's door jamb. Passengers and cargo in the truck come off what you can tow.
2026 GMC Sierra 3500HD towing capacity by engine
The highest rating published for each engine. Pick a figure to see every configuration behind it.
| Engine | Conventional | Fifth-wheel or gooseneck | Configurations |
|---|---|---|---|
| 6.6L Duramax Turbo-Diesel V8 | 20,000 lbs | 36,000 lbs | 28 |
| Duramax 6.6L Turbo-Diesel V8 | 20,000 lbs | 36,000 lbs | 40 |
| 6.6L V8 Gas | 18,700 lbs | 19,080 lbs | 31 |
2026 GMC Sierra 3500HD towing capacity chart
All 99 configurations in the source, by hitch type and engine, highest rating first. Each row links to the page it is printed on.
Conventional (ball hitch)
| Configuration | Drive | Axle | Max trailer | GCWR | Needs | Source |
|---|---|---|---|---|---|---|
| Regular Cab 2WD DRW 8' box 142 in. conventionalfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 2WD | 20,000 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Regular Cab 4WD DRW 8' box 142 in. conventionalfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 4WD | 20,000 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Double Cab 2WD SRW 8' box 162 in. conventionalfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 2WD | 20,000 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Double Cab 2WD DRW 8' box 162 in. conventionalfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 2WD | 20,000 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Double Cab 4WD SRW 8' box 162 in. conventionalfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 4WD | 20,000 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Double Cab 4WD DRW 8' box 162 in. conventionalfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 4WD | 20,000 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Crew Cab 2WD SRW 6' 9" box 159 in. conventionalfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 2WD | 20,000 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Crew Cab 4WD SRW 6' 9" box 159 in. conventionalfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 4WD | 20,000 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Crew Cab 2WD SRW 8' box 172 in. conventionalfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 2WD | 20,000 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Crew Cab 2WD DRW 8' box 172 in. conventionalfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 2WD | 20,000 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Crew Cab 4WD SRW 8' box 172 in. conventionalfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 4WD | 20,000 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Crew Cab 4WD DRW 8' box 172 in. conventionalfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 4WD | 20,000 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Regular Cab 2WD SRW 8' box 142 in. conventionalfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 2WD | 14,500 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Regular Cab 4WD SRW 8' box 142 in. conventionalfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 4WD | 14,500 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 |
| Configuration | Drive | Axle | Max trailer | GCWR | Needs | Source |
|---|---|---|---|---|---|---|
| CREW CAB Standard Bed 2WD | 2WD | 20,000 lbs | 30,000 lbs | p. 1 | ||
| CREW CAB Standard Bed 4WD | 4WD | 20,000 lbs | 30,000 lbs | p. 1 | ||
| CREW CAB Long Bed 4WD | 4WD | 20,000 lbs | 30,000 lbs | p. 1 | ||
| DOUBLE CAB Long Bed 2WD | 2WD | 20,000 lbs | 30,000 lbs | p. 1 | ||
| DOUBLE CAB Long Bed 4WD | 4WD | 20,000 lbs | 30,000 lbs | p. 1 | ||
| CREW CAB Long Bed 2WD | 2WD | 20,000 lbs | 30,300 lbs | p. 1 | ||
| CREW CAB Long Bed 2WD DRW | 2WD | 20,000 lbs | 40,000 lbs | p. 1 | ||
| CREW CAB Long Bed 4WD DRW | 4WD | 20,000 lbs | 40,000 lbs | p. 1 | ||
| DOUBLE CAB Long Bed 2WD DRW | 2WD | 20,000 lbs | 40,000 lbs | p. 1 | ||
| DOUBLE CAB Long Bed 4WD DRW | 4WD | 20,000 lbs | 40,000 lbs | p. 1 | ||
| REGULAR CAB Long Bed 4x4DRW | 4WD | 20,000 lbs | 40,000 lbs | p. 1 | ||
| REGULAR CAB Long Bed 2WD DRW | 2WD | 20,000 lbs | 43,500 lbs | p. 1 | ||
| REGULAR CAB Long Bed 2WD DRW | 2WD | 20,000 lbs | 43,900 lbs | Max Trailering Package | p. 1 | |
| REGULAR CAB Long Bed 2WD | 2WD | 14,500 lbs | 30,000 lbs | p. 1 | ||
| REGULAR CAB Long Bed 4WD | 4WD | 14,500 lbs | 30,000 lbs | p. 1 |
| Configuration | Drive | Axle | Max trailer | GCWR | Needs | Source |
|---|---|---|---|---|---|---|
| REGULAR CAB Long Bed 2WD DRW | 2WD | 18,700 lbs | 26,000 lbs | p. 1 | ||
| REGULAR CAB Long Bed 4x4DRW | 4WD | 18,400 lbs | 26,000 lbs | p. 1 | ||
| DOUBLE CAB Long Bed 2WD DRW | 2WD | 18,300 lbs | 26,000 lbs | p. 1 | ||
| CREW CAB Long Bed 2WD DRW | 2WD | 18,200 lbs | 26,000 lbs | p. 1 | ||
| DOUBLE CAB Long Bed 4WD DRW | 4WD | 18,000 lbs | 26,000 lbs | p. 1 | ||
| CREW CAB Long Bed 4WD DRW | 4WD | 17,800 lbs | 26,000 lbs | p. 1 | ||
| CREW CAB Standard Bed 2WD | 2WD | 16,000 lbs | 26,000 lbs | p. 1 | ||
| CREW CAB Long Bed 2WD | 2WD | 16,000 lbs | 26,000 lbs | p. 1 | ||
| CREW CAB Standard Bed 4WD | 4WD | 16,000 lbs | 26,000 lbs | p. 1 | ||
| CREW CAB Long Bed 4WD | 4WD | 16,000 lbs | 26,000 lbs | p. 1 | ||
| DOUBLE CAB Long Bed 2WD | 2WD | 16,000 lbs | 26,000 lbs | p. 1 | ||
| DOUBLE CAB Long Bed 4WD | 4WD | 16,000 lbs | 26,000 lbs | p. 1 | ||
| REGULAR CAB Long Bed 2WD | 2WD | 14,500 lbs | 26,000 lbs | p. 1 | ||
| REGULAR CAB Long Bed 4WD | 4WD | 14,500 lbs | 26,000 lbs | p. 1 |
Fifth-wheel or gooseneck
| Configuration | Drive | Axle | Max trailer | GCWR | Needs | Source |
|---|---|---|---|---|---|---|
| Regular Cab 2WD DRW 8' box 142 in. gooseneck/5th-wheelfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.'; footnote 5: 'Requires Max Trailering Package and Gooseneck hitch.' | 2WD | 36,000 lbs | 6.6L Duramax Turbo-Diesel V8 engine; Max Trailering Package; Gooseneck hitch | p. 133 | ||
| Double Cab 2WD DRW 8' box 162 in. gooseneck/5th-wheelfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 2WD | 31,580 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Regular Cab 4WD DRW 8' box 142 in. gooseneck/5th-wheelfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 4WD | 31,500 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Crew Cab 2WD DRW 8' box 172 in. gooseneck/5th-wheelfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 2WD | 31,440 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Double Cab 4WD DRW 8' box 162 in. gooseneck/5th-wheelfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 4WD | 31,270 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Crew Cab 4WD DRW 8' box 172 in. gooseneck/5th-wheelfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 4WD | 31,000 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Regular Cab 2WD SRW 8' box 142 in. gooseneck/5th-wheelfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 2WD | 22,420 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Crew Cab 2WD SRW 8' box 172 in. gooseneck/5th-wheelfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 2WD | 22,070 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Regular Cab 4WD SRW 8' box 142 in. gooseneck/5th-wheelfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 4WD | 22,040 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Double Cab 2WD SRW 8' box 162 in. gooseneck/5th-wheelfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 2WD | 21,900 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Crew Cab 2WD SRW 6' 9" box 159 in. gooseneck/5th-wheelfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 2WD | 21,900 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Crew Cab 4WD SRW 6' 9" box 159 in. gooseneck/5th-wheelfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 4WD | 21,600 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Double Cab 4WD SRW 8' box 162 in. gooseneck/5th-wheelfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 4WD | 21,590 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 | ||
| Crew Cab 4WD SRW 8' box 172 in. gooseneck/5th-wheelfootnote 3: 'Requires 6.6L Duramax Turbo-Diesel V8 engine.' | 4WD | 21,460 lbs | 6.6L Duramax Turbo-Diesel V8 engine | p. 133 |
| Configuration | Drive | Axle | Max trailer | GCWR | Needs | Source |
|---|---|---|---|---|---|---|
| REGULAR CAB Long Bed 2WD DRWfootnote 8: maximum available gooseneck trailer rating | 2WD | 36,000 lbs | 43,900 lbs | gooseneck hitch; Max Trailering Package | p. 2 | |
| REGULAR CAB Long Bed 2WD DRWfootnote 8: maximum available gooseneck trailer rating | 2WD | 35,500 lbs | 43,500 lbs | gooseneck hitch | p. 2 | |
| REGULAR CAB Long Bed 2WD DRWfootnote 7: maximum available fifth wheel hitch rating | 2WD | 32,000 lbs | 43,500 lbs | fifth-wheel hitch | p. 2 | |
| REGULAR CAB Long Bed 2WD DRWfootnote 7: maximum available fifth wheel hitch rating | 2WD | 32,000 lbs | 43,900 lbs | fifth-wheel hitch; Max Trailering Package | p. 2 | |
| DOUBLE CAB Long Bed 2WD DRW | 2WD | 31,580 lbs | 40,000 lbs | p. 2 | ||
| REGULAR CAB Long Bed 4x4DRW | 4WD | 31,500 lbs | 40,000 lbs | p. 2 | ||
| CREW CAB Long Bed 2WD DRW | 2WD | 31,440 lbs | 40,000 lbs | p. 2 | ||
| DOUBLE CAB Long Bed 4x4DRW | 4WD | 31,270 lbs | 40,000 lbs | p. 2 | ||
| CREW CAB Long Bed 4x4 DRW | 4WD | 31,000 lbs | 40,000 lbs | p. 2 | ||
| Denali, CREW CAB Long Bed 4x4 DRWfootnote 4: Denali maximum trailer rating | 4WD | 30,800 lbs | 40,000 lbs | p. 2 | ||
| Denali Ultimate, CREW CAB Long Bed 4x4 DRWfootnote 5: Denali Ultimate maximum trailer rating | 4WD | 30,700 lbs | 40,000 lbs | p. 2 | ||
| REGULAR CAB Long Bed 2WD | 2WD | 22,420 lbs | 30,000 lbs | p. 2 | ||
| CREW CAB Long Bed 2WD | 2WD | 22,070 lbs | 30,300 lbs | p. 2 | ||
| REGULAR CAB Long Bed 4x4 | 4WD | 22,040 lbs | 30,000 lbs | p. 2 | ||
| CREW CAB Standard Bed 2WD | 2WD | 21,900 lbs | 30,000 lbs | p. 2 | ||
| DOUBLE CAB Long Bed 2WD | 2WD | 21,900 lbs | 30,000 lbs | p. 2 | ||
| CREW CAB Standard Bed 4x4 | 4WD | 21,600 lbs | 30,000 lbs | p. 2 | ||
| DOUBLE CAB Long Bed 4x4 | 4WD | 21,590 lbs | 30,000 lbs | p. 2 | ||
| CREW CAB Long Bed 4x4 | 4WD | 21,460 lbs | 30,000 lbs | p. 2 | ||
| AT4, CREW CAB Standard Bed 4x4footnote 3: AT4 maximum trailer rating | 4WD | 21,300 lbs | 30,000 lbs | p. 2 | ||
| AT4, CREW CAB Long Bed 4x4footnote 3: AT4 maximum trailer rating | 4WD | 21,200 lbs | 30,000 lbs | p. 2 | ||
| Denali, CREW CAB Standard Bed 4x4footnote 4: Denali maximum trailer rating | 4WD | 21,200 lbs | 30,000 lbs | p. 2 | ||
| Denali, CREW CAB Long Bed 4x4footnote 4: Denali maximum trailer rating | 4WD | 21,100 lbs | 30,000 lbs | p. 2 | ||
| Denali Ultimate, CREW CAB Standard Bed 4x4footnote 5: Denali Ultimate maximum trailer rating | 4WD | 21,100 lbs | 30,000 lbs | p. 2 | ||
| Denali Ultimate, CREW CAB Long Bed 4x4footnote 5: Denali Ultimate maximum trailer rating | 4WD | 21,000 lbs | 30,000 lbs | p. 2 |
| Configuration | Drive | Axle | Max trailer | GCWR | Needs | Source |
|---|---|---|---|---|---|---|
| REGULAR CAB Long Bed 2WD | 2WD | 19,080 lbs | 26,000 lbs | p. 2 | ||
| REGULAR CAB Long Bed 2WD DRW | 2WD | 18,760 lbs | 26,000 lbs | p. 2 | ||
| REGULAR CAB Long Bed 4x4 | 4WD | 18,700 lbs | 26,000 lbs | p. 2 | ||
| CREW CAB Standard Bed 2WD | 2WD | 18,650 lbs | 26,000 lbs | p. 2 | ||
| DOUBLE CAB Long Bed 2WD | 2WD | 18,620 lbs | 26,000 lbs | p. 2 | ||
| CREW CAB Long Bed 2WD | 2WD | 18,510 lbs | 26,000 lbs | p. 2 | ||
| REGULAR CAB Long Bed 4x4DRW | 4WD | 18,380 lbs | 26,000 lbs | p. 2 | ||
| DOUBLE CAB Long Bed 4x4 | 4WD | 18,310 lbs | 26,000 lbs | p. 2 | ||
| CREW CAB Standard Bed 4x4 | 4WD | 18,300 lbs | 26,000 lbs | p. 2 | ||
| DOUBLE CAB Long Bed 2WD DRW | 2WD | 18,300 lbs | 26,000 lbs | p. 2 | ||
| CREW CAB Long Bed 2WD DRW | 2WD | 18,230 lbs | 26,000 lbs | p. 2 | ||
| CREW CAB Long Bed 4x4 | 4WD | 18,230 lbs | 26,000 lbs | p. 2 | ||
| DOUBLE CAB Long Bed 4x4DRW | 4WD | 17,990 lbs | 26,000 lbs | p. 2 | ||
| AT4 and Denali, CREW CAB Standard Bed 4x4footnotes 3 and 4: AT4 and Denali maximum trailer rating | 4WD | 17,900 lbs | 26,000 lbs | p. 2 | ||
| CREW CAB Long Bed 4x4 DRW | 4WD | 17,800 lbs | 26,000 lbs | p. 2 | ||
| AT4 and Denali, CREW CAB Long Bed 4x4footnotes 3 and 4: AT4 and Denali maximum trailer rating | 4WD | 17,800 lbs | 26,000 lbs | p. 2 | ||
| Denali, CREW CAB Long Bed 4x4 DRWfootnote 4: Denali maximum trailer rating | 4WD | 17,500 lbs | 26,000 lbs | p. 2 |
Common questions
Which 2026 GMC Sierra 3500HD engine tows the most?
6.6L Duramax Turbo-Diesel V8, at up to 20,000 lbs. Next is Duramax 6.6L Turbo-Diesel V8 at up to 20,000 lbs.
What does a 2026 GMC Sierra 3500HD need to tow 20,000 lbs?
The source lists this for the top-rated configuration: 6.6L Duramax Turbo-Diesel V8 engine.
Can a 2026 GMC Sierra 3500HD tow a fifth-wheel or gooseneck trailer?
The manufacturer publishes fifth-wheel or gooseneck ratings for it, up to 36,000 lbs. They are listed by configuration above.
Where do these numbers come from?
From 2026 GM Envolve Fleet Guide; 2026 SIERRA 3500 HD MAX CONVENTIONAL TRAILERING. Each row in the tables above links to the document and gives the page the figure is printed on.
Towing equipment for the 2026 GMC Sierra 3500HD
The manufacturer's tables name this equipment for some 2026 GMC Sierra 3500HD configurations. Equipment does not raise a rating. Check the Needs column for your own build before buying anything.
- Fifth-wheel hitch, listed for 2 of 99 configurations. See on Amazon (paid link)
- Gooseneck hitch, listed for 3 of 99 configurations. See on Amazon (paid link)
Parts sold to fit this vehicle. Fitting one does not raise a rating, and the tables above say what each rating needs.
- Trailer wiring harness for the 2026 GMC Sierra 3500HD. See on Amazon (paid link)
- Trailer hitch receiver for the 2026 GMC Sierra 3500HD. See on Amazon (paid link)
As an Amazon Associate we earn from qualifying purchases. The ratings on this page come only from the documents cited.
Where these numbers come from
- 2026 GM Envolve Fleet Guide, GM Fleet. Manufacturer spec sheet. Retrieved October 3, 2026.
- 2026 SIERRA 3500 HD MAX CONVENTIONAL TRAILERING, GMC. Manufacturer towing guide. Retrieved October 3, 2026.
Page numbers count pages in the linked file, which can differ from the number printed in the corner. Report a number that looks wrong.
Related ratings
- 2025 GMC Sierra 3500HD towing capacity
- Every year of the GMC Sierra 3500HD
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- 2026 GMC Sierra EV, up to 12,500 lbs
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