2025 Ram 3500 6.4L V8 HEMI Upgrade HD Engine 4x4 towing capacity.

The 2025 6.4L V8 HEMI Upgrade HD Engine tows 14,470 - 17,760 lbs across 4x4 configurations, depending on cab, drivetrain, axle ratio, wheel class, GVWR, GCWR, and box configuration.

Find your towing capacity Look up your 2025 6.4L V8 HEMI Upgrade HD Engine configuration View full comparison chart Compare all 2025 Ram 3500 configurations Open year guide Return to the 2025 Ram 3500 overview

Built from the official Ram 2025 towing guide pages used for this engine page. Citations for 6.4L V8 HEMI Upgrade HD Engine are 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 3500 towing guide, showing towing capacity, payload, GVWR, GCWR, axle ratio, and wheel class.

RAM 3500 - 4X4 - CREW CAB - ST - 6'4'' BOX
4.10	SRW	11,040 lbs	4,250 lbs	24,240 lbs	17,010 lbs	Base 6,794 lbs Base F/R 3,911 lbs / 2,882 lbs GAWR F/R 5,500 lbs / 7,000 lbs	8-Spd Auto 8HP75-LCV Trans · ST · BOX (unspecified)	p.2
3.73	SRW	11,040 lbs	4,250 lbs	22,000 lbs	14,770 lbs	Base 6,794 lbs Base F/R 3,911 lbs / 2,882 lbs GAWR F/R 5,500 lbs / 7,000 lbs	8-Spd Auto 8HP75-LCV Trans · ST · BOX (unspecified)	p.2
RAM 3500 - 4X4 - CREW CAB - ST - 8' BOX
4.10	DRW	14,000 lbs	6,640 lbs	25,000 lbs	17,200 lbs	Base 7,357 lbs Base F/R 4,126 lbs / 3,231 lbs GAWR F/R 5,500 lbs / 9,750 lbs	8-Spd Auto 8HP75-LCV Trans · ST · BOX (unspecified)	p.3
4.10	SRW	11,440 lbs	4,440 lbs	24,240 lbs	16,800 lbs	Base 7,004 lbs Base F/R 4,097 lbs / 2,906 lbs GAWR F/R 5,500 lbs / 7,000 lbs	8-Spd Auto 8HP75-LCV Trans · ST · BOX (unspecified)	p.3
3.73	DRW	14,000 lbs	6,640 lbs	22,600 lbs	14,800 lbs	Base 7,357 lbs Base F/R 4,126 lbs / 3,231 lbs GAWR F/R 5,500 lbs / 9,750 lbs	8-Spd Auto 8HP75-LCV Trans · ST · BOX (unspecified)	p.3
3.73	SRW	11,440 lbs	4,440 lbs	22,000 lbs	14,560 lbs	Base 7,004 lbs Base F/R 4,097 lbs / 2,906 lbs GAWR F/R 5,500 lbs / 7,000 lbs	8-Spd Auto 8HP75-LCV Trans · ST · BOX (unspecified)	p.3
RAM 3500 - 4X4 - CREW CAB - ST - WITHOUT 6'4'' BOX (BOX OFF)
4.10	SRW	11,040 lbs	4,730 lbs	24,240 lbs	16,930 lbs	Base 6,305 lbs Base F/R 3,944 lbs / 2,360 lbs GAWR F/R 5,500 lbs / 7,000 lbs	8-Spd Auto 8HP75-LCV Trans · ST · Chassis Cab	p.2
3.73	SRW	11,040 lbs	4,730 lbs	22,000 lbs	14,690 lbs	Base 6,305 lbs Base F/R 3,944 lbs / 2,360 lbs GAWR F/R 5,500 lbs / 7,000 lbs	8-Spd Auto 8HP75-LCV Trans · ST · Chassis Cab	p.2
RAM 3500 - 4X4 - CREW CAB - ST - WITHOUT 8' BOX (BOX OFF)
4.10	SRW	11,440 lbs	4,990 lbs	24,240 lbs	16,710 lbs	Base 6,453 lbs Base F/R 4,114 lbs / 2,339 lbs GAWR F/R 5,500 lbs / 7,000 lbs	8-Spd Auto 8HP75-LCV Trans · ST · Chassis Cab	p.3
3.73	SRW	11,440 lbs	4,990 lbs	22,000 lbs	14,470 lbs	Base 6,453 lbs Base F/R 4,114 lbs / 2,339 lbs GAWR F/R 5,500 lbs / 7,000 lbs	8-Spd Auto 8HP75-LCV Trans · ST · Chassis Cab	p.3
RAM 3500 - 4X4 - REG CAB - ST - 8' BOX
4.10	DRW	14,000 lbs	7,200 lbs	25,000 lbs	17,760 lbs	Base 6,796 lbs Base F/R 3,780 lbs / 3,015 lbs GAWR F/R 5,500 lbs / 9,750 lbs	8-Spd Auto 8HP75-LCV Trans · ST · BOX (unspecified)	p.1
4.10	SRW	11,040 lbs	4,580 lbs	24,230 lbs	17,330 lbs	Base 6,462 lbs Base F/R 3,762 lbs / 2,699 lbs GAWR F/R 5,500 lbs / 7,000 lbs	8-Spd Auto 8HP75-LCV Trans · ST · BOX (unspecified)	p.1
3.73	DRW	14,000 lbs	7,200 lbs	22,600 lbs	15,360 lbs	Base 6,796 lbs Base F/R 3,780 lbs / 3,015 lbs GAWR F/R 5,500 lbs / 9,750 lbs	8-Spd Auto 8HP75-LCV Trans · ST · BOX (unspecified)	p.1
3.73	SRW	11,040 lbs	4,580 lbs	22,000 lbs	15,100 lbs	Base 6,462 lbs Base F/R 3,762 lbs / 2,699 lbs GAWR F/R 5,500 lbs / 7,000 lbs	8-Spd Auto 8HP75-LCV Trans · ST · BOX (unspecified)	p.1
RAM 3500 - 4X4 - REG CAB - ST - WITHOUT 8' BOX (BOX OFF)
4.10	SRW	11,040 lbs	5,140 lbs	24,230 lbs	17,230 lbs	Base 5,902 lbs Base F/R 3,784 lbs / 2,117 lbs GAWR F/R 5,500 lbs / 7,000 lbs	8-Spd Auto 8HP75-LCV Trans · ST · Chassis Cab	p.1
3.73	SRW	11,040 lbs	5,140 lbs	22,000 lbs	15,000 lbs	Base 5,902 lbs Base F/R 3,784 lbs / 2,117 lbs GAWR F/R 5,500 lbs / 7,000 lbs	8-Spd Auto 8HP75-LCV Trans · ST · Chassis Cab	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 rating

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 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 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 LIMIT Commercial / Hitch Limits

Chassis-cab and heavy-trailer thresholds

Body-completion weight: 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.4
Vehicles with a GVWR of 14,000 and greater are DRW. Vehicles less than 14,000 GVWR are SRW. p.4
Payload and Max Trailer Weights are ESTIMATED values. p.4
All values are shown in pounds unless otherwise stated. p.4
Payload and Max Trailer Weight values are rounded to the nearest 10lb. p.4
Payload = GVWR - Base Weight p.4
Payload and Trailer Weight Rating are mutually exclusive. p.4
GAWRs, GVWRs and GCWRs should never be exceeded. p.4
Trailer Weight Rating and Tow Vehicle Trailering Weight are calculated as specified in SAE J2807. p.4
Passenger Weight = 300 lb p.4
Options Weight = 100 lb p.4
Trailering Equipment Weight: 75 lb for Conventional Hitch, 70 lb for Gooseneck and 250 lb for 5th Wheel. p.4
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.4
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.4
Box Off Body Completion Weight = 80 lb per foot from end of cab to end of frame p.4
A fifth-wheel hitch is required for trailers over 23,000 lbs. p.4
A Gooseneck hitch is required for trailers over 30,000 lbs. p.4