2025 Ram 2500 6.4L V8 HEMI Upgrade HD Engine 4x2 towing capacity.

The 2025 6.4L V8 HEMI Upgrade HD Engine tows 14,920 - 17,750 lbs depending on cab, drivetrain, axle ratio, bed length, GVWR, GCWR, and the configurations covered on this page.

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Built from the official Ram 2025 towing guide pages used for this engine page. Citations for 6.4L V8 HEMI Upgrade HD Engine available below.

Towing data

2025 6.4L V8 HEMI Upgrade HD Engine towing capacity by configuration

Each row below is one published configuration from the 2025 Ram towing guide, showing towing capacity, payload, GVWR, and GCWR.

RAM 2500 - 4X2 - CREW CAB - ST - 6'4'' BOX
4.10	10,000 lbs	3,610 lbs	24,250 lbs	17,420 lbs	Base 6,394 lbs Base F/R 3,610 lbs / 2,783 lbs GAWR F/R 5,500 lbs / 6,390 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.2
4.10	9,900 lbs	3,500 lbs	24,250 lbs	17,410 lbs	Base 6,398 lbs Base F/R 3,609 lbs / 2,788 lbs GAWR F/R 5,500 lbs / 6,390 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.2
3.73	10,000 lbs	3,610 lbs	22,050 lbs	15,220 lbs	Base 6,394 lbs Base F/R 3,610 lbs / 2,783 lbs GAWR F/R 5,500 lbs / 6,390 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.2
3.73	9,900 lbs	3,500 lbs	22,050 lbs	15,210 lbs	Base 6,398 lbs Base F/R 3,609 lbs / 2,788 lbs GAWR F/R 5,500 lbs / 6,390 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.2
RAM 2500 - 4X2 - CREW CAB - ST - 8' BOX
4.10	10,000 lbs	3,470 lbs	24,250 lbs	17,280 lbs	Base 6,530 lbs Base F/R 3,752 lbs / 2,777 lbs GAWR F/R 5,500 lbs / 6,000 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.4
4.10	9,900 lbs	3,360 lbs	24,250 lbs	17,270 lbs	Base 6,537 lbs Base F/R 3,756 lbs / 2,781 lbs GAWR F/R 5,500 lbs / 6,390 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.4
3.73	10,000 lbs	3,470 lbs	22,050 lbs	15,080 lbs	Base 6,530 lbs Base F/R 3,752 lbs / 2,777 lbs GAWR F/R 5,500 lbs / 6,000 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.4
3.73	9,900 lbs	3,360 lbs	22,050 lbs	15,070 lbs	Base 6,537 lbs Base F/R 3,756 lbs / 2,781 lbs GAWR F/R 5,500 lbs / 6,390 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.4
RAM 2500 - 4X2 - CREW CAB - ST - WITHOUT 6'4'' BOX (BOX OFF)
4.10	10,000 lbs	3,940 lbs	24,250 lbs	17,190 lbs	Base 6,055 lbs Base F/R 3,729 lbs / 2,325 lbs GAWR F/R 5,500 lbs / 6,390 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.3
4.10	9,900 lbs	3,840 lbs	24,250 lbs	17,190 lbs	Base 6,055 lbs Base F/R 3,729 lbs / 2,325 lbs GAWR F/R 5,500 lbs / 6,390 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.3
3.73	10,000 lbs	3,940 lbs	22,050 lbs	14,990 lbs	Base 6,055 lbs Base F/R 3,729 lbs / 2,325 lbs GAWR F/R 5,500 lbs / 6,390 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.3
3.73	9,900 lbs	3,840 lbs	22,050 lbs	14,990 lbs	Base 6,055 lbs Base F/R 3,729 lbs / 2,325 lbs GAWR F/R 5,500 lbs / 6,390 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.3
RAM 2500 - 4X2 - CREW CAB - ST - WITHOUT 8' BOX (BOX OFF)
4.10	10,000 lbs	3,950 lbs	24,250 lbs	17,120 lbs	Base 6,049 lbs Base F/R 3,798 lbs / 2,250 lbs GAWR F/R 5,500 lbs / 6,390 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.5
4.10	9,900 lbs	3,850 lbs	24,250 lbs	17,120 lbs	Base 6,053 lbs Base F/R 3,799 lbs / 2,253 lbs GAWR F/R 5,500 lbs / 6,390 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.5
3.73	10,000 lbs	3,950 lbs	22,050 lbs	14,920 lbs	Base 6,049 lbs Base F/R 3,798 lbs / 2,250 lbs GAWR F/R 5,500 lbs / 6,390 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.5
3.73	9,900 lbs	3,850 lbs	22,050 lbs	14,920 lbs	Base 6,053 lbs Base F/R 3,799 lbs / 2,253 lbs GAWR F/R 5,500 lbs / 6,390 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.5
RAM 2500 - 4X2 - REG CAB - ST - 8' BOX
4.10	10,000 lbs	3,940 lbs	24,250 lbs	17,750 lbs	Base 6,064 lbs Base F/R 3,476 lbs / 2,588 lbs GAWR F/R 5,500 lbs / 6,500 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.1
4.10	9,900 lbs	3,840 lbs	24,250 lbs	17,750 lbs	Base 6,064 lbs Base F/R 3,476 lbs / 2,588 lbs GAWR F/R 5,500 lbs / 6,500 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.1
3.73	10,000 lbs	3,940 lbs	22,050 lbs	15,550 lbs	Base 6,064 lbs Base F/R 3,476 lbs / 2,588 lbs GAWR F/R 5,500 lbs / 6,500 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.1
3.73	9,900 lbs	3,840 lbs	22,050 lbs	15,550 lbs	Base 6,064 lbs Base F/R 3,476 lbs / 2,588 lbs GAWR F/R 5,500 lbs / 6,500 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.1
RAM 2500 - 4X2 - REG CAB - ST - WITHOUT 8' BOX (BOX OFF)
4.10	10,000 lbs	4,420 lbs	24,250 lbs	17,570 lbs	Base 5,582 lbs Base F/R 3,531 lbs / 2,051 lbs GAWR F/R 5,500 lbs / 6,500 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.1
4.10	9,900 lbs	4,320 lbs	24,250 lbs	17,570 lbs	Base 5,584 lbs Base F/R 3,529 lbs / 2,054 lbs GAWR F/R 5,500 lbs / 6,500 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.1
3.73	10,000 lbs	4,420 lbs	22,050 lbs	15,370 lbs	Base 5,582 lbs Base F/R 3,531 lbs / 2,051 lbs GAWR F/R 5,500 lbs / 6,500 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.1
3.73	9,900 lbs	4,320 lbs	22,050 lbs	15,370 lbs	Base 5,584 lbs Base F/R 3,529 lbs / 2,054 lbs GAWR F/R 5,500 lbs / 6,500 lbs	8-Spd Auto 8HP75-LCV Trans · ST	p.1

TONGUE LOAD CONV / 5TH-WHEEL

10% / 15%

Conventional vs. 5th-wheel/gooseneck

TRAILERING HARDWARE EQUIPMENT WEIGHT

75 / 70 / 250 LBS

Conventional / gooseneck / 5th wheel

HITCH THRESHOLDS TRAILER LIMITS

23k / 30k LBS

5th-wheel / gooseneck required above this weight

RATING METHOD STANDARD

SAE J2807

Industry tow-rating standard

VIEW ALL FINE PRINT

FIG. 2025 LOAD Baseline Weights

Weights Ram already counted in every number

Passenger weight: 300 lbs counted for driver + passengers.
Options weight: 100 lbs counted for factory-installed options.
Conventional tongue: 10% of gross trailer weight.
5th-wheel / gooseneck tongue: 15% of gross trailer weight.

FIG. 2025 HITCH Hitch Loading

Hardware weight deducted from payload

Conventional hitch: 75 lbs of equipment weight.
Gooseneck: 70 lbs of equipment weight.
5th wheel: 250 lbs of equipment weight.

FIG. 2025 CALC Payload Formula

How Ram derives payload from base weight

Formula: Payload = GVWR - Base Weight
Values: Published as estimated values.
Rounding: nearest 10 lbs.

FIG. 2025 LIMIT Commercial / Hitch Limits

Chassis-cab and heavy-trailer thresholds

Box-off completion: 80 lbs per foot from end of cab to end of frame.
5th-wheel required over: 23,000 lbs trailer weight.
Gooseneck required over: 30,000 lbs trailer weight.

FIG. 2025 STD Rating Standard

SAE J2807 compliance

Trailer Weight Rating and Tow Vehicle Trailering Weight are calculated as specified in SAE J2807.

FIG. 2025 WARN Warnings

Manufacturer safety warnings

Payload and Trailer Weight Rating are mutually exclusive.
GAWRs, GVWRs and GCWRs should never be exceeded.
Payload and GAWR should never be exceeded and must account for all of the above weights, including the appropriate trailering equipment and tongue weight.

FIG. 2025 NOTES Policy Notes

All published notes from the 2025 towing guide

Max. Trailer Weight Rating represents a properly equipped base trim configuration. p.6
Vehicles with a GVWR of 13,500 and greater are DRW. Vehicles less than 13,500 GVWR are SRW. p.6
Payload and Max Trailer Weights are ESTIMATED values. p.6
All values are shown in pounds unless otherwise stated. p.6
Payload and Max Trailer Weight values are rounded to the nearest 10lb. p.6
Payload = GVWR - Base Weight p.6
Payload and Trailer Weight Rating are mutually exclusive. p.6
GAWRs, GVWRs and GCWRs should never be exceeded. p.6
Trailer Weight Rating and Tow Vehicle Trailering Weight are calculated as specified in SAE J2807. p.6
Passenger Weight = 300 lb p.6
Options Weight = 100 lb p.6
Trailering Equipment Weight: 75 lb for Conventional Hitch, 70 lb for Gooseneck and 250 lb for 5th Wheel. p.6
Tongue weight: 10 percent of the gross trailer weight for Conventional Hitch, 15 percent of the gross trailer weight for a 5th Wheel or Gooseneck hitch. p.6
Payload and GAWR should never be exceeded and must account for all of the above weights, including the appropriate trailering equipment and tongue weight. p.6
Box Off Body Completion Weight = 80 lb per foot from end of cab to end of frame p.7
A fifth-wheel hitch is required for trailers over 23,000 lbs. p.7
A Gooseneck hitch is required for trailers over 30,000 lbs. p.7