2018 Ram 3500 6.7L Cummins HO Diesel towing capacity.

The 2018 6.7L Cummins HO Diesel tows 16,600 - 31,210 lbs across published configurations, depending on cab, drivetrain, axle ratio, wheel class, GVWR, GCWR, and box configuration.

Find your towing capacity Look up your 2018 6.7L Cummins HO Diesel configuration View full comparison chart Compare all 2018 Ram 3500 configurations Open year guide Return to the 2018 Ram 3500 overview

Built from the official Ram 2018 towing guide pages used for this engine page. Citations for 6.7L Cummins HO Diesel are available below.

2018 Ram 3500
6.7L Cummins HO Diesel RANGE
16,600 - 31,210 LBS
PEAK PAYLOAD
6,580 LBS
MAX GCWR
39,100 LBS
Towing data

2018 6.7L Cummins HO Diesel towing capacity by configuration

Each row below is one published configuration from the 2018 Ram 3500 towing guide, showing towing capacity, payload, GVWR, GCWR, axle ratio, and wheel class.

CREW CAB LONG BOX, 4X2, DRW
4.10 DRW 14,000 lbs 6,030 lbs 39,100 lbs 30,660 lbs 6-Speed Auto AS69RC · BOX (unspecified)
3.73 DRW 14,000 lbs 6,030 lbs 33,800 lbs 25,360 lbs 6-Speed Auto AS69RC · BOX (unspecified)
3.42 DRW 14,000 lbs 6,030 lbs 29,300 lbs 20,860 lbs 6-Speed Auto AS69RC · BOX (unspecified)
CREW CAB LONG BOX, 4X2, SRW
3.42 SRW 12,000 lbs 4,370 lbs 25,300 lbs 17,200 lbs 6-Speed Auto AS69RC · BOX (unspecified)
CREW CAB LONG BOX, 4X4, DRW
4.10 DRW 14,000 lbs 5,690 lbs 39,100 lbs 30,320 lbs 6-Speed Auto AS69RC · BOX (unspecified)
3.73 DRW 14,000 lbs 5,690 lbs 33,800 lbs 25,020 lbs 6-Speed Auto AS69RC · BOX (unspecified)
3.42 DRW 14,000 lbs 5,690 lbs 29,300 lbs 20,520 lbs 6-Speed Auto AS69RC · BOX (unspecified)
CREW CAB LONG BOX, 4X4, SRW
3.42 SRW 12,300 lbs 4,320 lbs 25,300 lbs 16,850 lbs 6-Speed Auto AS69RC · BOX (unspecified)
CREW CAB SHORT BOX, 4X2, SRW
3.42 SRW 11,500 lbs 4,000 lbs 25,300 lbs 17,330 lbs 6-Speed Auto AS69RC · BOX (unspecified)
CREW CAB SHORT BOX, 4X4, SRW
3.42 SRW 11,700 lbs 3,780 lbs 25,300 lbs 16,910 lbs 6-Speed Auto AS69RC · BOX (unspecified)
MEGA CAB, 4X2, DRW
4.10 DRW 14,000 lbs 5,770 lbs 39,100 lbs 30,400 lbs 6-Speed Auto AS69RC · BOX (unspecified)
3.73 DRW 14,000 lbs 5,770 lbs 33,800 lbs 25,100 lbs 6-Speed Auto AS69RC · BOX (unspecified)
3.42 DRW 14,000 lbs 5,770 lbs 29,300 lbs 20,600 lbs 6-Speed Auto AS69RC · BOX (unspecified)
MEGA CAB, 4X2, SRW
3.42 SRW 11,600 lbs 3,760 lbs 25,300 lbs 16,990 lbs 6-Speed Auto AS69RC · BOX (unspecified)
MEGA CAB, 4X4, DRW
4.10 DRW 14,000 lbs 5,470 lbs 39,100 lbs 30,100 lbs 6-Speed Auto AS69RC · BOX (unspecified)
3.73 DRW 14,000 lbs 5,470 lbs 33,800 lbs 24,800 lbs 6-Speed Auto AS69RC · BOX (unspecified)
3.42 DRW 14,000 lbs 5,470 lbs 29,300 lbs 20,300 lbs 6-Speed Auto AS69RC · BOX (unspecified)
MEGA CAB, 4X4, SRW
3.42 SRW 12,300 lbs 4,070 lbs 25,300 lbs 16,600 lbs 6-Speed Auto AS69RC · BOX (unspecified)
REGULAR CAB, 4X2, DRW
4.10 DRW 14,000 lbs 6,580 lbs 39,100 lbs 31,210 lbs 6-Speed Auto AS69RC · BOX (unspecified)
3.73 DRW 14,000 lbs 6,580 lbs 33,800 lbs 25,910 lbs 6-Speed Auto AS69RC · BOX (unspecified)
3.42 DRW 14,000 lbs 6,580 lbs 29,300 lbs 21,410 lbs 6-Speed Auto AS69RC · BOX (unspecified)
REGULAR CAB, 4X2, SRW
3.42 SRW 11,100 lbs 4,040 lbs 25,300 lbs 17,770 lbs 6-Speed Auto AS69RC · BOX (unspecified)
REGULAR CAB, 4X4, DRW
4.10 DRW 14,000 lbs 6,200 lbs 39,100 lbs 30,830 lbs 6-Speed Auto AS69RC · BOX (unspecified)
3.73 DRW 14,000 lbs 6,200 lbs 33,800 lbs 25,530 lbs 6-Speed Auto AS69RC · BOX (unspecified)
3.42 DRW 14,000 lbs 6,200 lbs 29,300 lbs 21,030 lbs 6-Speed Auto AS69RC · BOX (unspecified)
REGULAR CAB, 4X4, SRW
3.42 SRW 11,500 lbs 4,060 lbs 25,300 lbs 17,390 lbs 6-Speed Auto AS69RC · BOX (unspecified)
TONGUE LOAD CONV / 5TH-WHEEL
10% / 15%
Conventional vs. 5th-wheel/gooseneck
TRAILERING HARDWARE EQUIPMENT WEIGHT
75 / 70 / 250 LBS
Conventional / gooseneck / 5th wheel
RECEIVER LIMIT CLASS V MAX TONGUE
1,800 LBS
Published receiver-hitch cap for this guide
RATING METHOD STANDARD
SAE J2807
Industry tow-rating standard
VIEW ALL FINE PRINT
GUIDE FINE PRINT

Ground rules behind every 2018 Ram 3500 towing rating.

These guide rules define the payload, trailering hardware, and limits behind every 2018 Ram 3500 towing rating on this page.

FIG. 2018 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. 2018 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. 2018 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. 2018 LIMIT Commercial / Hitch Limits

Chassis-cab and receiver limits

  • Body-completion weight: 80 lbs per foot from end of cab to end of frame.
  • Class V receiver max tongue: 1,800 lbs.
  • Heavy-trailer thresholds: see the published guide notes for the threshold language in this legacy guide.
FIG. 2018 STD Rating Standard

SAE J2807 compliance

  • Trailer Weight Rating and Tow Vehicle Trailering Weight are calculated as specified in SAE J2807.
FIG. 2018 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. 2018 NOTES Policy Notes

All published notes from the 2018 towing guide

  • 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.6
  • The maximum tongue weight for Class V (receiver hitch) is limited to 1,800 lb. p.6
  • A fifth-wheel or gooseneck hitch is required for trailers over 20,000 lb. p.6
  • Maximum Capability p.6
NOTES: These ground rules apply to every published towing and payload rating. Your specific truck configuration may have additional constraints.
Compare

Other 2018 engines

Compare other engines in the same 2018 Ram 3500 guide.

Highest Capacity
6.7L Cummins Diesel
Range: 15,400 - 22,550 lbs
Max rating 22,550 LBS
6.4L V8 HEMI
Range: 11,970 - 16,480 lbs
Max rating 16,480 LBS
5.7L V8 HEMI
Range: 10,830 - 13,910 lbs
Max rating 13,910 LBS
Cross-Year

This engine in other Ram 3500 years

Compare this engine across other Ram 3500 model years available here.

2015 6.7L Cummins HO Diesel
Range: 16,660 - 30,000 lbs
Max rating 30,000 LBS
2016 6.7L Cummins HO Diesel
Range: 16,660 - 31,210 lbs
Max rating 31,210 LBS
2017 6.7L Cummins HO Diesel
Range: 16,600 - 31,210 lbs
Max rating 31,210 LBS
Technical Audit

Data sources

These citations show the Ram guide pages used to build the 2018 6.7L Cummins HO Diesel engine page and guide-rule notes.

Show source pages for the 6.7L Cummins HO Diesel page
DOC_ID: ram-3500 DOCUMENT BASIS

2018 Ram 3500 Towing Guide

Audit Scope PAGES: 1-7