How heavy can a trailer safely be?

It depends on how the rig is used.

Speed, altitude, road grades, outside temperature, and how much the vehicle is used to pull a trailer are all important. It can depend on any special equipment on the vehicle, and the amount of tongue weight the vehicle can carry. See “Weight of the Trailer Tongue” later in this section for more information.

Trailer weight rating (TWR) is calculated assuming the tow vehicle has only the driver but all required trailering equipment. Weight of additional optional equipment, passengers, and cargo in the tow vehicle must be subtracted from the trailer weight rating.

For kingpin weight and trailer tongue weight information, see “Weight of the Trailer Tongue” later in this section.

Use the following chart to determine how much the vehicle can weigh, based upon the vehicle model and options.

Weights listed apply for conventional trailers and fifth-wheel trailers unless otherwise noted.

Ask your dealer for trailering information or advice, or write us at our Customer Assistance Offices.

See Customer Assistance Offices (U.S. and Canada) on page 13‑5 or Customer Assistance Offices (Mexico) on page 13‑6 for more information.