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Hitch, connector, and brake controller requirements

The three pieces of tow-vehicle equipment you need: 2-5/16" hitch ball, 7-pin connector, and a working brake controller.

Three pieces of equipment on your tow vehicle: a 2-5/16" hitch ball rated for at least 15,000 lbs, a 7-pin trailer connector, and a working brake controller. If any are missing, you need to install them before pickup — the trailer can't be safely or legally towed without all three.

The 2-5/16" hitch ball

The trailer's coupler is a 2-5/16" Demco adjustable coupler — meaning it fits onto a 2-5/16-inch diameter hitch ball. This is one of the largest standard sizes, used for heavy trailers.

How to verify: look at the ball on your hitch. The size is stamped on top of the ball (e.g., "2-5/16"). A 2" or 1-7/8" ball will not work — it's too small and the coupler will not latch securely.

Rating: the ball and the receiver should be rated for at least 15,000 lbs to match the trailer's loaded weight. Most heavy-duty ball mounts (sold at auto-parts stores and farm/ranch supply) are rated 15,000+ lbs and clearly stamped.

The 7-pin connector

The trailer's electrical plug is a 7-pin round connector — the standard for trailers with electric brakes. Six of the seven pins carry power for the lights (running, brake, turn signals, side markers); the seventh pin carries the brake-controller signal.

How to verify: check the receptacle near your tow hitch. A 7-pin connector is round, about 2 inches across, with seven brass pins arranged in a circle. A 4-pin flat or 5-pin connector will not work — they don't carry brake signal, and the trailer's electric brakes won't function.

If your truck has a 4-pin or 5-pin connector, you can have a 7-pin upgraded at most auto-parts stores or trailer shops.

The brake controller (and why it's not optional)

The trailer is equipped with electric brakes on both axles. Without a brake controller in your tow vehicle, your tow vehicle's brakes alone have to stop the combined weight of truck + trailer + load — which can be 25,000 pounds. That's unsafe, illegal in most circumstances, and a fast way to overheat your truck's brakes.

A brake controller is a small device (or built-in module in newer trucks) that applies power to the trailer's brakes proportional to how hard you're braking. Many newer pickups (especially 3/4-ton and 1-ton) have an integrated brake controller in the dash. Older trucks usually need an aftermarket add-on, which mounts under the dash.

How to verify: Look for either (a) a controller-style adjustment knob/button near your steering column or in the dash, or (b) a small box mounted under your dash with a brake-output adjustment dial. If you can't find either, you probably don't have one.

What if I don't have these?

Don't book until your tow vehicle has all three. Booking and arriving without proper equipment means you can't safely tow — and the rental still counts against your booking time.

If you're not sure what your vehicle has, message us through chat with your truck's year, make, and model. We can help you figure out what to look for and whether you need add-ons.

Full terms in your Rental Agreement

Tow-vehicle and equipment requirements are in § 5 (Tow Vehicle and Hitch Requirements) of your Rental Agreement.

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