2018 Ram 2500 6.7L Cummins Diesel towing capacity.

The 2018 6.7L Cummins Diesel tows 15,920 - 17,980 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 6.7L Cummins Diesel prefilled → View full comparison chart Full model index →

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

2018 Ram 2500
6.7L Cummins Diesel RANGE
15,920 - 17,980 LBS
PEAK PAYLOAD
3,160 LBS
MAX GCWR
25,300 LBS
Towing data

2018 6.7L Cummins Diesel towing capacity by configuration

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

CREW CAB, LONG BOX, 4X2
3.42 10,000 lbs 2,540 lbs 25,300 lbs 17,320 lbs Base7,461 lbsBase F/R4,571 lbs / 2,891 lbsGAWR F/R5,500 lbs / 6,500 lbs 6-Speed Auto 68RFE p.2
3.42 10,000 lbs 2,470 lbs 24,300 lbs 16,270 lbs Base7,528 lbsBase F/R4,630 lbs / 2,898 lbsGAWR F/R5,500 lbs / 6,500 lbs 6-Speed Manual G56 p.2
CREW CAB, LONG BOX, 4X4
3.42 10,000 lbs 2,200 lbs 25,300 lbs 16,750 lbs Base7,799 lbsBase F/R4,848 lbs / 2,950 lbsGAWR F/R5,750 lbs / 6,000 lbs 6-Speed Auto 68RFE p.3
3.42 10,000 lbs 2,130 lbs 24,300 lbs 15,920 lbs Base7,869 lbsBase F/R4,912 lbs / 2,957 lbsGAWR F/R5,750 lbs / 6,000 lbs 6-Speed Manual G56 p.3
CREW CAB, SHORT BOX, 4X2
3.42 10,000 lbs 2,670 lbs 25,300 lbs 17,450 lbs Base7,330 lbsBase F/R4,450 lbs / 2,881 lbsGAWR F/R5,500 lbs / 6,500 lbs 6-Speed Auto 68RFE p.2
3.42 10,000 lbs 2,610 lbs 24,300 lbs 16,410 lbs Base7,393 lbsBase F/R4,508 lbs / 2,885 lbsGAWR F/R5,500 lbs / 6,500 lbs 6-Speed Manual G56 p.2
CREW CAB, SHORT BOX, 4X4
3.42 10,000 lbs 2,380 lbs 25,300 lbs 17,160 lbs Base7,619 lbsBase F/R4,700 lbs / 2,918 lbsGAWR F/R5,750 lbs / 6,000 lbs 6-Speed Auto 68RFE p.3
3.42 10,000 lbs 2,310 lbs 24,300 lbs 16,110 lbs Base7,685 lbsBase F/R4,761 lbs / 2,924 lbsGAWR F/R5,750 lbs / 6,000 lbs 6-Speed Manual G56 p.3
REG CAB, LONG BOX, 4X2
3.42 10,000 lbs 3,160 lbs 25,300 lbs 17,980 lbs Chart max Base6,844 lbsBase F/R4,171 lbs / 2,673 lbsGAWR F/R5,500 lbs / 6,000 lbs 6-Speed Auto 68RFE p.1
3.42 10,000 lbs 3,060 lbs 24,300 lbs 16,890 lbs Base6,943 lbsBase F/R4,247 lbs / 2,696 lbsGAWR F/R5,500 lbs / 6,000 lbs 6-Speed Manual G56 p.1
REG CAB, LONG BOX, 4X4
3.42 10,000 lbs 2,720 lbs 25,300 lbs 17,500 lbs Base7,280 lbsBase F/R4,538 lbs / 2,742 lbsGAWR F/R5,750 lbs / 6,000 lbs 6-Speed Auto 68RFE p.1
3.42 10,000 lbs 2,630 lbs 24,300 lbs 16,430 lbs Base7,367 lbsBase F/R4,609 lbs / 2,758 lbsGAWR F/R5,750 lbs / 6,000 lbs 6-Speed Manual G56 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
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 2500 towing number.

These ground rules define the payload, trailering hardware, and limits behind every 2018 Ram 2500 towing number on this page.

FIG. 2018 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. 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 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 LIMIT Commercial / Hitch Limits

Chassis-cab and receiver limits

  • Box-off completion: 80 lbs per foot from end of cab to end of frame.
  • Class V receiver max tongue: 1,800 lbs.
  • Heavy-trailer thresholds: this guide does not publish 5th-wheel / gooseneck trigger weights.
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
  • Tongue weight: 10 percent of the gross trailer weight for Conventional Hitch, 15 percent of the gross trailer weight for 5th Wheel or Gooseneck hitch. p.6
  • Trailering Equipment Weight: 75 lb for Conventional Hitch, 70 lb for Gooseneck and 250 lb for 5th Wheel. 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
  • Maximum Capability p.6
NOTES: These ground rules apply to every published towing and payload value. Your specific truck configuration may have additional constraints.
Compare

Other 2018 engines

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

Highest Capacity
6.4L V8 HEMI
Range: 10,050 - 16,320 lbs
Max rating 16,320 LBS
5.7L V8 HEMI
Range: 11,010 - 13,880 lbs
Max rating 13,880 LBS
5.7L V8 CNG
Range: 6,820 - 7,680 lbs
Max rating 7,680 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.

2015 6.7L Cummins Diesel
Range: 14,520 - 17,970 lbs
Max rating 17,970 LBS
2016 6.7L Cummins Diesel
Range: 15,960 - 17,980 lbs
Max rating 17,980 LBS
2017 6.7L Cummins Diesel
Range: 15,950 - 17,980 lbs
Max rating 17,980 LBS
Technical Audit

Data sources

These citations show the Ram guide pages used to build the 2018 6.7L Cummins Diesel engine page.

Show source pages for the 6.7L Cummins Diesel page
DOC_ID: ram-2500 DOCUMENT BASIS

2018 Ram 2500 Towing Guide

Audit Scope PAGES: 1-3