2018 Ram 2500 6.7L Cummins Diesel towing capacity.

The 2018 6.7L Cummins Diesel tows 14,750 - 17,980 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 2018 towing guide pages used for this engine page. Citations for 6.7L Cummins Diesel available below.

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	Base 7,461 lbs Base F/R 4,571 lbs / 2,891 lbs GAWR F/R 5,500 lbs / 6,500 lbs	A6 68RFE	p.2
3.42	10,000 lbs	2,470 lbs	24,300 lbs	16,270 lbs	Base 7,528 lbs Base F/R 4,630 lbs / 2,898 lbs GAWR F/R 5,500 lbs / 6,500 lbs	M6 MT-G56	p.2
CREW CAB, LONG BOX, 4X4
3.42	10,000 lbs	2,200 lbs	25,300 lbs	16,750 lbs	Base 7,799 lbs Base F/R 4,848 lbs / 2,950 lbs GAWR F/R 5,750 lbs / 6,000 lbs	A6 68RFE	p.3
3.42	10,000 lbs	2,130 lbs	24,300 lbs	15,920 lbs	Base 7,869 lbs Base F/R 4,912 lbs / 2,957 lbs GAWR F/R 5,750 lbs / 6,000 lbs	M6 MT-G56	p.3
CREW CAB, SHORT BOX, 4X2
3.42	10,000 lbs	2,670 lbs	25,300 lbs	17,450 lbs	Base 7,330 lbs Base F/R 4,450 lbs / 2,881 lbs GAWR F/R 5,500 lbs / 6,500 lbs	A6 68RFE	p.2
3.42	10,000 lbs	2,610 lbs	24,300 lbs	16,410 lbs	Base 7,393 lbs Base F/R 4,508 lbs / 2,885 lbs GAWR F/R 5,500 lbs / 6,500 lbs	M6 MT-G56	p.2
CREW CAB, SHORT BOX, 4X4
3.42	10,000 lbs	2,380 lbs	25,300 lbs	17,160 lbs	Base 7,619 lbs Base F/R 4,700 lbs / 2,918 lbs GAWR F/R 5,750 lbs / 6,000 lbs	A6 68RFE	p.3
3.42	10,000 lbs	2,310 lbs	24,300 lbs	16,110 lbs	Base 7,685 lbs Base F/R 4,761 lbs / 2,924 lbs GAWR F/R 5,750 lbs / 6,000 lbs	M6 MT-G56	p.3
MEGA CAB SHORT BOX, 4X2
3.42	10,000 lbs	2,340 lbs	25,300 lbs	17,170 lbs	Base 7,658 lbs Base F/R 4,634 lbs / 3,024 lbs GAWR F/R 5,500 lbs / 6,500 lbs	A6 68RFE	p.4
3.42	10,000 lbs	2,270 lbs	24,300 lbs	16,100 lbs	Base 7,726 lbs Base F/R 4,695 lbs / 3,031 lbs GAWR F/R 5,500 lbs / 6,500 lbs	M6 MT-G56	p.4
MEGA CAB SHORT BOX, 4X4
3.42	10,000 lbs	2,020 lbs	25,300 lbs	15,430 lbs	Base 7,982 lbs Base F/R 4,892 lbs / 3,090 lbs GAWR F/R 6,000 lbs / 6,500 lbs	A6 68RFE	p.4
3.42	10,000 lbs	1,950 lbs	24,300 lbs	14,750 lbs	Base 8,050 lbs Base F/R 4,954 lbs / 3,096 lbs GAWR F/R 6,000 lbs / 6,500 lbs	M6 MT-G56	p.4
REG CAB, LONG BOX, 4X2
3.42	10,000 lbs	3,160 lbs	25,300 lbs	17,980 lbs Chart max	Base 6,844 lbs Base F/R 4,171 lbs / 2,673 lbs GAWR F/R 5,500 lbs / 6,000 lbs	A6 68RFE	p.1
3.42	10,000 lbs	3,060 lbs	24,300 lbs	16,890 lbs	Base 6,943 lbs Base F/R 4,247 lbs / 2,696 lbs GAWR F/R 5,500 lbs / 6,000 lbs	M6 MT-G56	p.1
REG CAB, LONG BOX, 4X4
3.42	10,000 lbs	2,720 lbs	25,300 lbs	17,500 lbs	Base 7,280 lbs Base F/R 4,538 lbs / 2,742 lbs GAWR F/R 5,750 lbs / 6,000 lbs	A6 68RFE	p.1
3.42	10,000 lbs	2,630 lbs	24,300 lbs	16,430 lbs	Base 7,367 lbs Base F/R 4,609 lbs / 2,758 lbs GAWR F/R 5,750 lbs / 6,000 lbs	M6 MT-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

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