2025 Ram 2500 6.4L V8 HEMI Upgrade HD Engine 4x4 towing capacity.

The 2025 6.4L V8 HEMI Upgrade HD Engine tows 10,530 - 17,440 lbs depending on cab, drivetrain, axle ratio, bed length, GVWR, GCWR, and the configurations covered on this page.

Find your towing capacity Look up your exact configuration with 6.4L V8 HEMI Upgrade HD Engine prefilled → View full comparison chart Full model index →

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.

2025 Ram 2500
6.4L V8 HEMI Upgrade HD Engine RANGE
10,530 - 17,440 LBS
PEAK PAYLOAD
4,080 LBS
MAX GCWR
24,250 LBS
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 - 4x4 - CREW CAB - POWER WAGON - WITHOUT 6'4'' BOX (BOX OFF)
4.10 8,565 lbs 1,570 lbs 18,000 lbs 10,530 lbs Base 6,992 lbs Base F/R 4,149 lbs / 2,843 lbs GAWR F/R 4,750 lbs / 6,200 lbs 8-Spd Auto 8HP75-LCV Trans · POWER WAGON p.4
RAM 2500 - 4x4 - CREW CAB - ST - 6'4'' BOX
4.10 10,000 lbs 3,320 lbs 24,250 lbs 17,130 lbs Base 6,680 lbs Base F/R 3,887 lbs / 2,792 lbs GAWR F/R 5,500 lbs / 6,390 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.3
4.10 9,900 lbs 3,210 lbs 24,250 lbs 17,120 lbs Base 6,689 lbs Base F/R 3,897 lbs / 2,791 lbs GAWR F/R 5,500 lbs / 6,390 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.3
3.73 10,000 lbs 3,320 lbs 22,050 lbs 14,930 lbs Base 6,680 lbs Base F/R 3,887 lbs / 2,792 lbs GAWR F/R 5,500 lbs / 6,390 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.3
3.73 9,900 lbs 3,210 lbs 22,050 lbs 14,920 lbs Base 6,689 lbs Base F/R 3,897 lbs / 2,791 lbs GAWR F/R 5,500 lbs / 6,390 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.3
RAM 2500 - 4x4 - CREW CAB - ST - 8' BOX
4.10 9,900 lbs 3,020 lbs 24,250 lbs 16,930 lbs Base 6,875 lbs Base F/R 4,055 lbs / 2,820 lbs GAWR F/R 5,500 lbs / 6,000 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.5
4.10 10,000 lbs 3,110 lbs 24,250 lbs 16,920 lbs Base 6,886 lbs Base F/R 4,059 lbs / 2,827 lbs GAWR F/R 5,500 lbs / 6,390 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.5
3.73 9,900 lbs 3,020 lbs 22,050 lbs 14,730 lbs Base 6,875 lbs Base F/R 4,055 lbs / 2,820 lbs GAWR F/R 5,500 lbs / 6,000 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.5
3.73 10,000 lbs 3,110 lbs 22,050 lbs 14,720 lbs Base 6,886 lbs Base F/R 4,059 lbs / 2,827 lbs GAWR F/R 5,500 lbs / 6,390 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.5
RAM 2500 - 4x4 - CREW CAB - ST - WITHOUT 6'4'' BOX (BOX OFF)
4.10 10,000 lbs 3,700 lbs 24,250 lbs 16,950 lbs Base 6,295 lbs Base F/R 3,976 lbs / 2,318 lbs GAWR F/R 5,500 lbs / 6,390 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.4
4.10 9,900 lbs 3,600 lbs 24,250 lbs 16,950 lbs Base 6,295 lbs Base F/R 3,976 lbs / 2,318 lbs GAWR F/R 5,500 lbs / 6,390 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.4
3.73 10,000 lbs 3,700 lbs 22,050 lbs 14,750 lbs Base 6,295 lbs Base F/R 3,976 lbs / 2,318 lbs GAWR F/R 5,500 lbs / 6,390 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.4
3.73 9,900 lbs 3,600 lbs 22,050 lbs 14,750 lbs Base 6,295 lbs Base F/R 3,976 lbs / 2,318 lbs GAWR F/R 5,500 lbs / 6,390 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.4
RAM 2500 - 4x4 - CREW CAB - ST - WITHOUT 8' BOX (BOX OFF)
4.10 10,000 lbs 3,570 lbs 24,250 lbs 16,700 lbs Base 6,434 lbs Base F/R 4,126 lbs / 2,308 lbs GAWR F/R 5,500 lbs / 6,390 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.6
4.10 9,900 lbs 3,450 lbs 24,250 lbs 16,680 lbs Base 6,451 lbs Base F/R 4,095 lbs / 2,356 lbs GAWR F/R 5,500 lbs / 6,390 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.6
3.73 10,000 lbs 3,570 lbs 22,050 lbs 14,540 lbs Base 6,434 lbs Base F/R 4,126 lbs / 2,308 lbs GAWR F/R 5,500 lbs / 6,390 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.6
3.73 9,900 lbs 3,450 lbs 22,050 lbs 14,520 lbs Base 6,451 lbs Base F/R 4,095 lbs / 2,356 lbs GAWR F/R 5,500 lbs / 6,390 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.6
RAM 2500 - 4x4 - REG CAB - ST - 8' BOX
4.10 10,000 lbs 3,630 lbs 24,250 lbs 17,440 lbs Base 6,372 lbs Base F/R 3,747 lbs / 2,625 lbs GAWR F/R 5,500 lbs / 6,000 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.1
4.10 9,900 lbs 3,520 lbs 24,250 lbs 17,430 lbs Base 6,384 lbs Base F/R 3,754 lbs / 2,629 lbs GAWR F/R 5,500 lbs / 6,000 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.1
3.73 10,000 lbs 3,630 lbs 22,050 lbs 15,240 lbs Base 6,372 lbs Base F/R 3,747 lbs / 2,625 lbs GAWR F/R 5,500 lbs / 6,000 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.1
3.73 9,900 lbs 3,520 lbs 22,050 lbs 15,230 lbs Base 6,384 lbs Base F/R 3,754 lbs / 2,629 lbs GAWR F/R 5,500 lbs / 6,000 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.1
RAM 2500 - 4X4 - REG CAB - ST - WITHOUT 8' BOX (BOX OFF)
4.10 10,000 lbs 4,080 lbs 24,250 lbs 17,230 lbs Base 5,924 lbs Base F/R 3,826 lbs / 2,098 lbs GAWR F/R 5,500 lbs / 6,390 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.2
4.10 9,900 lbs 3,980 lbs 24,250 lbs 17,230 lbs Base 5,922 lbs Base F/R 3,752 lbs / 2,169 lbs GAWR F/R 5,500 lbs / 6,390 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.2
3.73 10,000 lbs 4,080 lbs 22,050 lbs 15,030 lbs Base 5,924 lbs Base F/R 3,826 lbs / 2,098 lbs GAWR F/R 5,500 lbs / 6,390 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.2
3.73 9,900 lbs 3,980 lbs 22,050 lbs 15,030 lbs Base 5,922 lbs Base F/R 3,752 lbs / 2,169 lbs GAWR F/R 5,500 lbs / 6,390 lbs 8-Spd Auto 8HP75-LCV Trans · ST p.2
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
GUIDE FINE PRINT

Ground rules behind every 2025 Ram 2500 towing number.

These ground rules define the payload, trailering hardware, and limits behind every 2025 Ram 2500 towing number on this page.

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.7
  • Vehicles with a GVWR of 13,500 and greater are DRW. Vehicles less than 13,500 GVWR are SRW. p.7
  • Payload and Max Trailer Weights are ESTIMATED values. p.7
  • All values are shown in pounds unless otherwise stated. p.7
  • Payload and Max Trailer Weight values are rounded to the nearest 10lb. p.7
  • Payload = GVWR - Base Weight p.7
  • Payload and Trailer Weight Rating are mutually exclusive. p.7
  • GAWRs, GVWRs and GCWRs should never be exceeded. p.7
  • Trailer Weight Rating and Tow Vehicle Trailering Weight are calculated as specified in SAE J2807. p.7
  • Passenger Weight = 300 lb p.7
  • Options Weight = 100 lb p.7
  • Trailering Equipment Weight: 75 lb for Conventional Hitch, 70 lb for Gooseneck and 250 lb for 5th Wheel. p.7
  • 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.7
  • 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.8
  • Box Off Body Completion Weight = 80 lb per foot from end of cab to end of frame p.8
  • A fifth-wheel hitch is required for trailers over 23,000 lbs. p.8
  • A Gooseneck hitch is required for trailers over 30,000 lbs. p.8
NOTES: These ground rules apply to every published towing and payload value. Your specific truck configuration may have additional constraints.
Compare

Other 2025 4x4 engines

These comparisons stay within the same published year slice so separate gas/diesel or drivetrain groupings are not blended together.

Highest Capacity
6.7L I6 Cummins HO Turbo Diesel Eng
Range: 14,630 - 19,900 lbs
Max rating 19,900 LBS
Cross-Year

This engine in other supported years

Cross-year comparisons stay within the same published year slice so earlier unified or split guide structures are not merged artificially.

2022 6.4L V8 Heavy Duty HEMI MDS
Range: 10,440 - 17,420 lbs
Max rating 17,420 LBS
2023 6.4L V8 Heavy Duty HEMI MDS
Range: 10,570 - 17,410 lbs
Max rating 17,410 LBS
2024 6.4L V8 Heavy Duty HEMI MDS
Range: 10,600 - 17,410 lbs
Max rating 17,410 LBS
Technical Audit

Data sources

These citations show the Ram guide pages used to build the 2025 6.4L V8 HEMI Upgrade HD Engine engine page.

Show source pages for the 6.4L V8 HEMI Upgrade HD Engine page
DOC_ID: ram-2500 DOCUMENT BASIS

2025 Ram 2500 4WD Towing Guide

Audit Scope PAGES: 1-6