2021 GMC Sierra 2500HD towing capacity

Up to 18,500 lbs with a conventional ball hitch. That rating is for this configuration: 2500 Crew 2WD Standard, 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 rating18,500 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.

2021 GMC Sierra 2500HD 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	18,500 lbs	18,510 lbs	56
6.6L Gas V8	14,500 lbs	17,370 lbs	68

2021 GMC Sierra 2500HD towing capacity chart

All 124 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)

2021 GMC Sierra 2500HD 6.6L Duramax Turbo Diesel V8 towing capacity, conventional hitch
Configuration	Drive	Max trailer	GCWR	Needs	Source
2500 Crew 2WD Standard	2WD	18,500 lbs	27,500 lbs		p. 6
2500 Crew 4WD Standardpayload printed with footnote 6	4WD	18,500 lbs	27,500 lbs		p. 6
2500 Crew 2WD Long	2WD	18,500 lbs	27,500 lbs		p. 6
2500 Crew 4WD Longpayload printed with footnote 7	4WD	18,500 lbs	27,500 lbs		p. 6
2500 Crew 2WD with 18" or 20" wheels Longoptional 10,000-lb GVWR (or less) package	2WD	17,970 lbs	26,000 lbs	optional 10,000-lb GVWR package; 18" or 20" wheels	p. 8
2500 Crew 4WD with 18" or 20" wheels Standardoptional 10,000-lb GVWR (or less) package	4WD	17,850 lbs	26,000 lbs	optional 10,000-lb GVWR package; 18" or 20" wheels	p. 8
2500 Crew 4WD with 18" or 20" wheels Longoptional 10,000-lb GVWR (or less) package	4WD	16,560 lbs	26,000 lbs	optional 10,000-lb GVWR package; 18" or 20" wheels	p. 8
2500 Regular 2WD Long	2WD	14,500 lbs	26,000 lbs		p. 6
2500 Regular 4WD Long	4WD	14,500 lbs	26,000 lbs		p. 6
2500 Double 2WD Standard	2WD	14,500 lbs	26,000 lbs		p. 6
2500 Double 4WD Standard	4WD	14,500 lbs	26,000 lbs		p. 6
2500 Double 2WD Long	2WD	14,500 lbs	26,000 lbs		p. 6
2500 Double 4WD Long	4WD	14,500 lbs	26,000 lbs		p. 6
2500 Double 4WD Standardoptional 10,000-lb GVWR (or less) package	4WD	14,500 lbs	24,500 lbs	optional 10,000-lb GVWR package	p. 8
2500 Double 4WD Longoptional 10,000-lb GVWR (or less) package	4WD	14,500 lbs	24,500 lbs	optional 10,000-lb GVWR package	p. 8
2500 Crew 4WD with 17" wheels Standardoptional 10,000-lb GVWR (or less) package	4WD	14,500 lbs	26,000 lbs	optional 10,000-lb GVWR package; 17" wheels	p. 8
2500 Crew 2WD with 17" wheels Longoptional 10,000-lb GVWR (or less) package	2WD	14,500 lbs	26,000 lbs	optional 10,000-lb GVWR package; 17" wheels	p. 8
2500 Crew 4WD with 17" wheels Longoptional 10,000-lb GVWR (or less) package	4WD	14,500 lbs	26,000 lbs	optional 10,000-lb GVWR package; 17" wheels	p. 8

2021 GMC Sierra 2500HD 6.6L Gas V8 towing capacity, conventional hitch
Configuration	Drive	Max trailer	GCWR	Needs	Source
2500 Regular 2WD Long	2WD	14,500 lbs	24,000 lbs		p. 7
2500 Regular 4WD Long	4WD	14,500 lbs	24,000 lbs		p. 7
2500 Double 2WD Standard	2WD	14,500 lbs	24,000 lbs		p. 7
2500 Double 4WD Standard	4WD	14,500 lbs	24,000 lbs		p. 7
2500 Double 2WD Long	2WD	14,500 lbs	24,000 lbs		p. 7
2500 Double 4WD Long	4WD	14,500 lbs	24,000 lbs		p. 7
2500 Crew 2WD Standard	2WD	14,500 lbs	24,000 lbs		p. 7
2500 Crew 4WD Standardpayload printed with footnote 6	4WD	14,500 lbs	24,000 lbs		p. 7
2500 Crew 2WD Long	2WD	14,500 lbs	24,000 lbs		p. 7
2500 Crew 4WD Longpayload printed with footnote 8	4WD	14,500 lbs	24,000 lbs		p. 7
2500 Regular 2WD Longoptional 10,000-lb GVWR (or less) package	2WD	14,500 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Regular 4WD Longoptional 10,000-lb GVWR (or less) package	4WD	14,500 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Double 2WD Standardoptional 10,000-lb GVWR (or less) package	2WD	14,500 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Double 4WD Standardoptional 10,000-lb GVWR (or less) package	4WD	14,500 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Double 2WD Longoptional 10,000-lb GVWR (or less) package	2WD	14,500 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Double 4WD Longoptional 10,000-lb GVWR (or less) package	4WD	14,500 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Crew 2WD Standardoptional 10,000-lb GVWR (or less) package	2WD	14,500 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Crew 4WD Standardoptional 10,000-lb GVWR (or less) package	4WD	14,500 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Crew 2WD Longoptional 10,000-lb GVWR (or less) package	2WD	14,500 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Crew 4WD Longoptional 10,000-lb GVWR (or less) package	4WD	14,500 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8

Fifth-wheel or gooseneck

2021 GMC Sierra 2500HD 6.6L Duramax Turbo Diesel V8 towing capacity, fifth-wheel or gooseneck hitch
Configuration	Drive	Max trailer	GCWR	Needs	Source
2500 Regular 2WD Long	2WD	18,510 lbs	26,000 lbs		p. 6
2500 Regular 2WD Long	2WD	18,510 lbs	26,000 lbs		p. 6
2500 Crew 2WD Standard	2WD	18,500 lbs	27,500 lbs		p. 6
2500 Crew 2WD Standard	2WD	18,500 lbs	27,500 lbs		p. 6
2500 Crew 4WD Standardpayload printed with footnote 6	4WD	18,500 lbs	27,500 lbs		p. 6
2500 Crew 4WD Standardpayload printed with footnote 6	4WD	18,500 lbs	27,500 lbs		p. 6
2500 Crew 2WD Long	2WD	18,500 lbs	27,500 lbs		p. 6
2500 Crew 2WD Long	2WD	18,500 lbs	27,500 lbs		p. 6
2500 Crew 4WD Longpayload printed with footnote 7	4WD	18,500 lbs	27,500 lbs		p. 6
2500 Crew 4WD Longpayload printed with footnote 7	4WD	18,500 lbs	27,500 lbs		p. 6
2500 Double 2WD Standard	2WD	18,200 lbs	26,000 lbs		p. 6
2500 Double 2WD Standard	2WD	18,200 lbs	26,000 lbs		p. 6
2500 Regular 4WD Long	4WD	18,190 lbs	26,000 lbs		p. 6
2500 Regular 4WD Long	4WD	18,190 lbs	26,000 lbs		p. 6
2500 Double 2WD Long	2WD	18,040 lbs	26,000 lbs		p. 6
2500 Double 2WD Long	2WD	18,040 lbs	26,000 lbs		p. 6
2500 Double 4WD Standard	4WD	17,890 lbs	26,000 lbs		p. 6
2500 Double 4WD Standard	4WD	17,890 lbs	26,000 lbs		p. 6
Denali, 2500 Crew 4WD Standardrating printed in footnote 5 ('Denali max rating is 17,860 lbs') for this cell	4WD	17,860 lbs			p. 6
Denali, 2500 Crew 4WD Standardrating printed in footnote 5 ('Denali max rating is 17,860 lbs') for this cell	4WD	17,860 lbs			p. 6
2500 Double 4WD Long	4WD	17,750 lbs	26,000 lbs		p. 6
2500 Double 4WD Long	4WD	17,750 lbs	26,000 lbs		p. 6
2500 Double 4WD Standardoptional 10,000-lb GVWR (or less) package	4WD	12,610 lbs	24,500 lbs	optional 10,000-lb GVWR package	p. 8
2500 Double 4WD Standardoptional 10,000-lb GVWR (or less) package	4WD	12,610 lbs	24,500 lbs	optional 10,000-lb GVWR package	p. 8
2500 Crew 2WD with 17" wheels Longoptional 10,000-lb GVWR (or less) package	2WD	12,550 lbs	26,000 lbs	optional 10,000-lb GVWR package; 17" wheels	p. 8
2500 Crew 2WD with 17" wheels Longoptional 10,000-lb GVWR (or less) package	2WD	12,550 lbs	26,000 lbs	optional 10,000-lb GVWR package; 17" wheels	p. 8
2500 Crew 2WD with 18" or 20" wheels Longoptional 10,000-lb GVWR (or less) package	2WD	12,350 lbs	26,000 lbs	optional 10,000-lb GVWR package; 18" or 20" wheels	p. 8
2500 Crew 2WD with 18" or 20" wheels Longoptional 10,000-lb GVWR (or less) package	2WD	12,350 lbs	26,000 lbs	optional 10,000-lb GVWR package; 18" or 20" wheels	p. 8
2500 Crew 4WD with 17" wheels Standardoptional 10,000-lb GVWR (or less) package	4WD	11,720 lbs	26,000 lbs	optional 10,000-lb GVWR package; 17" wheels	p. 8
2500 Crew 4WD with 17" wheels Standardoptional 10,000-lb GVWR (or less) package	4WD	11,720 lbs	26,000 lbs	optional 10,000-lb GVWR package; 17" wheels	p. 8
2500 Double 4WD Longoptional 10,000-lb GVWR (or less) package	4WD	11,690 lbs	24,500 lbs	optional 10,000-lb GVWR package	p. 8
2500 Double 4WD Longoptional 10,000-lb GVWR (or less) package	4WD	11,690 lbs	24,500 lbs	optional 10,000-lb GVWR package	p. 8
2500 Crew 4WD with 18" or 20" wheels Standardoptional 10,000-lb GVWR (or less) package	4WD	11,530 lbs	26,000 lbs	optional 10,000-lb GVWR package; 18" or 20" wheels	p. 8
2500 Crew 4WD with 18" or 20" wheels Standardoptional 10,000-lb GVWR (or less) package	4WD	11,530 lbs	26,000 lbs	optional 10,000-lb GVWR package; 18" or 20" wheels	p. 8
2500 Crew 4WD with 17" wheels Longoptional 10,000-lb GVWR (or less) package	4WD	10,620 lbs	26,000 lbs	optional 10,000-lb GVWR package; 17" wheels	p. 8
2500 Crew 4WD with 17" wheels Longoptional 10,000-lb GVWR (or less) package	4WD	10,620 lbs	26,000 lbs	optional 10,000-lb GVWR package; 17" wheels	p. 8
2500 Crew 4WD with 18" or 20" wheels Longoptional 10,000-lb GVWR (or less) package	4WD	10,240 lbs	26,000 lbs	optional 10,000-lb GVWR package; 18" or 20" wheels	p. 8
2500 Crew 4WD with 18" or 20" wheels Longoptional 10,000-lb GVWR (or less) package	4WD	10,240 lbs	26,000 lbs	optional 10,000-lb GVWR package; 18" or 20" wheels	p. 8

2021 GMC Sierra 2500HD 6.6L Gas V8 towing capacity, fifth-wheel or gooseneck hitch
Configuration	Drive	Max trailer	GCWR	Needs	Source
2500 Regular 2WD Long	2WD	17,370 lbs	24,000 lbs		p. 7
2500 Regular 2WD Long	2WD	17,370 lbs	24,000 lbs		p. 7
2500 Regular 2WD Longoptional 10,000-lb GVWR (or less) package	2WD	17,370 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Regular 2WD Longoptional 10,000-lb GVWR (or less) package	2WD	17,370 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Regular 4WD Long	4WD	17,060 lbs	24,000 lbs		p. 7
2500 Regular 4WD Long	4WD	17,060 lbs	24,000 lbs		p. 7
2500 Regular 4WD Longoptional 10,000-lb GVWR (or less) package	4WD	17,060 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Regular 4WD Longoptional 10,000-lb GVWR (or less) package	4WD	17,060 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Double 2WD Standard	2WD	17,050 lbs	24,000 lbs		p. 7
2500 Double 2WD Standard	2WD	17,050 lbs	24,000 lbs		p. 7
2500 Double 2WD Standardoptional 10,000-lb GVWR (or less) package	2WD	17,050 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Double 2WD Standardoptional 10,000-lb GVWR (or less) package	2WD	17,050 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Crew 2WD Standard	2WD	16,940 lbs	24,000 lbs		p. 7
2500 Crew 2WD Standard	2WD	16,940 lbs	24,000 lbs		p. 7
2500 Crew 2WD Standardoptional 10,000-lb GVWR (or less) package	2WD	16,940 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Crew 2WD Standardoptional 10,000-lb GVWR (or less) package	2WD	16,940 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Double 2WD Long	2WD	16,930 lbs	24,000 lbs		p. 7
2500 Double 2WD Long	2WD	16,930 lbs	24,000 lbs		p. 7
2500 Double 2WD Longoptional 10,000-lb GVWR (or less) package	2WD	16,930 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Double 2WD Longoptional 10,000-lb GVWR (or less) package	2WD	16,930 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Crew 2WD Long	2WD	16,840 lbs	24,000 lbs		p. 7
2500 Crew 2WD Long	2WD	16,840 lbs	24,000 lbs		p. 7
2500 Crew 2WD Longoptional 10,000-lb GVWR (or less) package	2WD	16,840 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Crew 2WD Longoptional 10,000-lb GVWR (or less) package	2WD	16,840 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Double 4WD Standard	4WD	16,740 lbs	24,000 lbs		p. 7
2500 Double 4WD Standard	4WD	16,740 lbs	24,000 lbs		p. 7
2500 Double 4WD Standardoptional 10,000-lb GVWR (or less) package	4WD	16,740 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Double 4WD Standardoptional 10,000-lb GVWR (or less) package	4WD	16,740 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Double 4WD Long	4WD	16,650 lbs	24,000 lbs		p. 7
2500 Double 4WD Long	4WD	16,650 lbs	24,000 lbs		p. 7
2500 Crew 4WD Standardpayload printed with footnote 6	4WD	16,650 lbs	24,000 lbs		p. 7
2500 Crew 4WD Standardpayload printed with footnote 6	4WD	16,650 lbs	24,000 lbs		p. 7
2500 Double 4WD Longoptional 10,000-lb GVWR (or less) package	4WD	16,650 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Double 4WD Longoptional 10,000-lb GVWR (or less) package	4WD	16,650 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Crew 4WD Standardoptional 10,000-lb GVWR (or less) package	4WD	16,650 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Crew 4WD Standardoptional 10,000-lb GVWR (or less) package	4WD	16,650 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Crew 4WD Longpayload printed with footnote 8	4WD	16,550 lbs	24,000 lbs		p. 7
2500 Crew 4WD Longpayload printed with footnote 8	4WD	16,550 lbs	24,000 lbs		p. 7
2500 Crew 4WD Longoptional 10,000-lb GVWR (or less) package	4WD	16,550 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
2500 Crew 4WD Longoptional 10,000-lb GVWR (or less) package	4WD	16,550 lbs	24,000 lbs	optional 10,000-lb GVWR package	p. 8
AT4, 2500 Crew 4WD Standardrating printed in footnote 5 ('AT4 max rating is 16,380 lbs') for this cell	4WD	16,380 lbs			p. 7
AT4, 2500 Crew 4WD Standardrating printed in footnote 5 ('AT4 max rating is 16,380 lbs') for this cell	4WD	16,380 lbs			p. 7
AT4, 2500 Crew 4WD Longrating printed in footnote 7 ('AT4 max rating is 16,270 lbs') for this cell	4WD	16,270 lbs			p. 7
AT4, 2500 Crew 4WD Longrating printed in footnote 7 ('AT4 max rating is 16,270 lbs') for this cell	4WD	16,270 lbs			p. 7
Denali, 2500 Crew 4WD Standardrating printed in footnote 5 ('Denali max rating is 16,260 lbs') for this cell	4WD	16,260 lbs			p. 7
Denali, 2500 Crew 4WD Standardrating printed in footnote 5 ('Denali max rating is 16,260 lbs') for this cell	4WD	16,260 lbs			p. 7
Denali, 2500 Crew 4WD Longrating printed in footnote 7 ('Denali max rating is 16,150 lbs') for this cell	4WD	16,150 lbs			p. 7
Denali, 2500 Crew 4WD Longrating printed in footnote 7 ('Denali max rating is 16,150 lbs') for this cell	4WD	16,150 lbs			p. 7

Common questions

Which 2021 GMC Sierra 2500HD engine tows the most?

6.6L Duramax Turbo Diesel V8, at up to 18,500 lbs. Next is 6.6L Gas V8 at up to 14,500 lbs.

Can a 2021 GMC Sierra 2500HD tow a fifth-wheel or gooseneck trailer?

The manufacturer publishes fifth-wheel or gooseneck ratings for it, up to 18,510 lbs. They are listed by configuration above.

Where do these numbers come from?

From 2021 GMC Trailering Guide. Each row in the tables above links to the document and gives the page the figure is printed on.

Towing equipment for the 2021 GMC Sierra 2500HD

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 2021 GMC Sierra 2500HD. See on Amazon (paid link)
Trailer hitch receiver for the 2021 GMC Sierra 2500HD. 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

2021 GMC Trailering Guide, 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

2022 GMC Sierra 2500HD towing capacity
2020 GMC Sierra 2500HD towing capacity
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