Model year 2021 · DJ (2019–present)

2021 Ram 2500 specs

The 2021 Ram 2500 tows 10,440–20,000 lb, carries 1,520–4,010 lb of payload and weighs 5,988–8,069 lb at the curb, by configuration, per Ram’s own documents.

We hold 15 configurations of the 2021 Ram 2500, and Ram gives a figure for every one.

Retail configurations: 15
Documents: 1

2026 Ram 2500 Rebel in white, front three-quarter view — Photo: Elise240SX, CC BY-SA 4.0, via Wikimedia Commons, resized.

01 / Configurations

Every 2021 Ram 2500 configuration

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

202115 configurations

2021 Ram 2500 DJ: every configuration with its numbers
Configuration	Max towing	Max payload	Curb weight
Tradesman Regular Cab 8ft bed 4x2 6.4L HEMI V8	up to 17,540 lb17,540 lb¹	4,010 lb	5,988 lb
Tradesman Crew Cab 6ft 4in bed 4x2 6.4L HEMI V8	up to 17,190 lb17,190 lb¹	3,660 lb	6,340 lb
Tradesman Crew Cab 8ft bed 4x2 6.4L HEMI V8	up to 17,060 lb17,060 lb¹	3,530 lb	6,470 lb
Tradesman Regular Cab 8ft bed 4x4 6.4L HEMI V8	up to 17,220 lb17,220 lb¹	3,690 lb	6,307 lb
Tradesman Crew Cab 6ft 4in bed 4x4 6.4L HEMI V8	up to 16,890 lb16,890 lb¹	3,360 lb	6,643 lb
Tradesman Crew Cab 8ft bed 4x4 6.4L HEMI V8	up to 16,700 lb16,700 lb¹	3,170 lb	6,826 lb
Tradesman Regular Cab 8ft bed 4x2 6.7L Cummins I6 turbo diesel	20,000 lb	3,160 lb	6,843 lb
Tradesman Crew Cab 6ft 4in bed 4x2 6.7L Cummins I6 turbo diesel	20,000 lb	2,780 lb	7,222 lb
Tradesman Crew Cab 8ft bed 4x2 6.7L Cummins I6 turbo diesel	20,000 lb	2,640 lb	7,361 lb
Tradesman Regular Cab 8ft bed 4x4 6.7L Cummins I6 turbo diesel	19,990 lb	2,810 lb	7,187 lb
Tradesman Crew Cab 6ft 4in bed 4x4 6.7L Cummins I6 turbo diesel	20,000 lb	2,500 lb	7,504 lb
Tradesman Crew Cab 8ft bed 4x4 6.7L Cummins I6 turbo diesel	18,230 lb	2,310 lb	7,691 lb
Big Horn Mega Cab 6ft 4in bed 4x4 6.4L HEMI V8	up to 16,460 lb16,460 lb¹	2,940 lb	7,061 lb
Big Horn Mega Cab 6ft 4in bed 4x4 6.7L Cummins I6 turbo diesel	15,690 lb	2,040 lb	7,956 lb
Power Wagon Crew Cab 6ft 4in bed 4x4 6.4L HEMI V8	10,590 lb	1,630 lb	6,939 lb

MakerSource: 2021 Ram 2500 (DJ) 6.4L / 6.7L Base Weight GCW Trailer Tow, body builder instruction dated 10/28/2020 (Ram_HD-2500-DJ_Trailer-Tow-Weight-Chart_MY21)

¹ With the 4.10 axle ratio: 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 Ram 2500 against the 2020, the previous model year we hold. Only what Ram’s documents show: nothing here is inferred.

No retail configuration added or dropped: the 15 sold in the 2020 are all here.
Towing: 10,440–20,000 lb (2020: 10,290–19,680 lb).
Payload: 1,520–4,010 lb (2020: 1,500–4,010 lb).
Curb weight: 5,988–8,069 lb (2020: 5,988–8,070 lb).
Towing rating differs on 10 of 15 configurations sold in both years: +10 to +980 lb.
Payload differs on 8 of 15 configurations sold in both years: +10 lb.
Curb weight differs on 12 of 15 configurations sold in both years: −12 to −1 lb.

03 / Sources

The 2021 documents

1 document behind the 2021 Ram 2500’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.

2021 Ram 2500 (DJ) 6.4L / 6.7L Base Weight GCW Trailer Tow, body builder instruction dated 10/28/2020 (Ram_HD-2500-DJ_Trailer-Tow-Weight-Chart_MY21)towing guide · MY2021

Documents last checked Oct 9, 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.

These are Ram’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.