Model year 2021 · T1 (2019–present)

2021 GMC Sierra 1500 specs

The 2021 GMC Sierra 1500 tows 7,400–11,800 lb, carries 1,750–2,250 lb of payload and measures 229.5–241.3 in long, by configuration, per GMC’s own documents.

We hold 31 configurations of the 2021 Sierra 1500, and GMC gives a figure for every one.

Retail configurations: 31
Documents: 2

01 / Configurations

Every 2021 Sierra 1500 configuration

31 retail configurations sold in 2021, each with the figures GMC publishes for it. A number a factory package raises shows under the configuration’s own. GMC gives figures for weights, dimensions and towing.

202131 configurations

2021 GMC Sierra 1500 T1: every configuration with its numbers
Configuration	Max towing	Max payload
Crew Cab Short Bed 2WD 4.3L V6	7,600 lb	2,040 lb
Crew Cab Short Bed 4WD 4.3L V6	7,400 lb	2,010 lb
Crew Cab Standard Bed 4WD 4.3L V6	7,400 lb	1,970 lb
Double Cab Standard Bed 2WD 4.3L V6	7,600 lb	2,040 lb
Double Cab Standard Bed 4WD 4.3L V6	7,400 lb	2,020 lb
Regular Cab Long Bed 2WD 4.3L V6	7,800 lb	2,250 lb
Regular Cab Long Bed 4WD 4.3L V6	7,600 lb	2,130 lb
Crew Cab Short Bed 2WD 2.7L Turbo	9,100 lb	2,060 lb
Crew Cab Short Bed 4WD 2.7L Turbo	8,900 lb	2,040 lb
Crew Cab Standard Bed 4WD 2.7L Turbo	8,900 lb	2,000 lb
Double Cab Standard Bed 2WD 2.7L Turbo	9,200 lb	2,060 lb
Double Cab Standard Bed 4WD 2.7L Turbo	9,000 lb	2,050 lb
Crew Cab Short Bed 2WD 5.3L V8 (base Sierra)	9,700 lb	2,060 lb
Crew Cab Short Bed 4WD 5.3L V8 (base Sierra)	9,400 lb	2,050 lb
Crew Cab Standard Bed 4WD 5.3L V8 (base Sierra)	9,400 lb	2,000 lb
Double Cab Standard Bed 2WD 5.3L V8 (base Sierra)	9,700 lb	1,970 lb
Double Cab Standard Bed 4WD 5.3L V8 (base Sierra)	9,400 lb	1,950 lb
Regular Cab Long Bed 2WD 5.3L V8 (base Sierra)	9,900 lb	2,180 lb
Regular Cab Long Bed 4WD 5.3L V8 (base Sierra)	9,700 lb	2,070 lb
Crew Cab Short Bed 2WD 5.3L V8	9,500 lb11,200 lb¹	—2,140 lb¹
Crew Cab Short Bed 4WD 5.3L V8	9,200 lb10,900 lb¹	2,120 lb
Crew Cab Standard Bed 4WD 5.3L V8	9,100 lb10,900 lb¹	—2,080 lb¹
Double Cab Standard Bed 2WD 5.3L V8	9,500 lb11,300 lb¹	—2,170 lb¹
Double Cab Standard Bed 4WD 5.3L V8	9,200 lb11,000 lb¹	—2,150 lb¹
Crew Cab Short Bed 4WD 6.2L V8	8,600 lb11,700 lb¹	—2,000 lb¹
Crew Cab Standard Bed 4WD 6.2L V8	9,000 lb11,800 lb¹	—1,960 lb¹
Crew Cab Short Bed 2WD 3.0L Duramax diesel	9,200 lb	1,830 lb
Crew Cab Short Bed 4WD 3.0L Duramax diesel	8,500 lb	1,810 lb
Crew Cab Standard Bed 4WD 3.0L Duramax diesel	8,800 lb	1,770 lb
Double Cab Standard Bed 2WD 3.0L Duramax diesel	9,300 lb	1,760 lb
Double Cab Standard Bed 4WD 3.0L Duramax diesel	9,000 lb	1,750 lb

MakerSource: 2021 GMC Trailering Guide (Sierra 1500 section)

¹ With the Max Trailering Package: the maker’s figure for the configuration with that factory option.

A dash means the maker’s documents we have don’t give that number for that configuration, and a column with no number for any configuration of the year isn’t shown. “Door label” means the maker prints it only on each vehicle’s certification label, and “not published” that the maker doesn’t print it, or points elsewhere. “Up to” is a ceiling the maker prints over several configurations; a range is the maker’s own, printed across the grades of that configuration.

02 / What changed

New for 2021

The 2021 Sierra 1500 against the 2020, the previous model year we hold. Only what GMC’s documents show: nothing here is inferred.

Added: 3 configurations (Crew Cab Short Bed 4WD 5.3L V8, Crew Cab Standard Bed 4WD 5.3L V8 and Double Cab Standard Bed 4WD 5.3L V8).
Dropped: 9 configurations (Crew Cab Standard Bed 2WD 4.3L V6, Crew Cab Standard Bed 2WD 2.7L Turbo, Crew Cab Standard Bed 2WD 5.3L V8 (base Sierra), Crew Cab Short Bed 4WD 5.3L V8, Crew Cab Standard Bed 2WD 5.3L V8 and 4 more).
Towing: 7,400–11,800 lb (2020: 6,600–12,100 lb).
Payload: 1,750–2,250 lb (2020: 1,740–2,240 lb).
Same range as the 2020: length.
Towing rating differs on 26 of 28 configurations sold in both years: −500 to +2,300 lb.
Payload differs on 15 of 24 configurations sold in both years: +10 lb.

03 / Sources

The 2021 documents

2 documents behind the 2021 Sierra 1500’s figures. The maker’s own come first; a third-party page fills in only a number the maker doesn’t publish, and wears its own mark.

Documents last checked Oct 12, 2026. How we read them and what the marks mean: how we source the numbers. A figure doesn’t match its document? Report a wrong number.

04 / Keep going

More on the Sierra 1500

Sierra 1500 T1Every T1 configuration, model year by model year, with clearance, angles and weights (2019–present).Open the T1 specs 2021 Sierra 1500 towingMax towing, GCWR, payload and tongue weight for every rated configuration.See the towing table Sierra 1500 specsEvery generation, the spec plate and the rig builder.Open the model page

These are GMC’s published figures for the models it describes, not a weighbridge or a tape measure; your own vehicle’s options change them. Found a figure that doesn’t match the document? Tell us.