2018 Ram 2500 5.7L V8 CNG towing capacity.

The 2018 5.7L V8 CNG tows 6,820 - 7,680 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 5.7L V8 CNG prefilled → View full comparison chart Full model index →

Built from the official Ram 2018 towing guide pages used for this engine page. Citations for 5.7L V8 CNG available below.

2018 Ram 2500
5.7L V8 CNG RANGE
6,820 - 7,680 LBS
PEAK PAYLOAD
2,350 LBS
MAX GCWR
15,000 LBS
Towing data

2018 5.7L V8 CNG 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 CNG
3.73 9,200 lbs 1,850 lbs 15,000 lbs 7,180 lbs Base7,353 lbsBase F/R3,851 lbs / 3,502 lbsGAWR F/R5,000 lbs / 6,000 lbs 6-Speed Auto 66RFE · CNG p.2
CREW CAB, LONG BOX, 4X4, CNG
3.73 9,200 lbs 1,490 lbs 15,000 lbs 6,820 lbs Base7,709 lbsBase F/R4,145 lbs / 3,564 lbsGAWR F/R5,500 lbs / 6,000 lbs 6-Speed Auto 66RFE · CNG p.3
REG CAB LONG BOX 4X2 CNG
3.73 9,200 lbs 2,350 lbs 15,000 lbs 7,680 lbs Base6,854 lbsBase F/R3,685 lbs / 3,169 lbsGAWR F/R5,000 lbs / 6,000 lbs 6-Speed Auto 66RFE · CNG p.1
REG CAB LONG BOX 4X4 CNG
3.73 9,200 lbs 1,970 lbs 15,000 lbs 7,300 lbs Base7,235 lbsBase F/R3,989 lbs / 3,246 lbsGAWR F/R5,500 lbs / 6,000 lbs 6-Speed Auto 66RFE · CNG 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
6.7L Cummins Diesel
Range: 15,920 - 17,980 lbs
Max rating 17,980 LBS
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
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 5.7L V8 CNG
Range: Up to 6,940 lbs
Max rating 6,940 LBS
2016 5.7L V8 CNG
Range: 6,960 - 12,520 lbs
Max rating 12,520 LBS
2017 5.7L V8 CNG
Range: 6,820 - 12,520 lbs
Max rating 12,520 LBS
Technical Audit

Data sources

These citations show the Ram guide pages used to build the 2018 5.7L V8 CNG engine page.

Show source pages for the 5.7L V8 CNG page
DOC_ID: ram-2500 DOCUMENT BASIS

2018 Ram 2500 Towing Guide

Audit Scope PAGES: 1-3