Having trouble parking your trailer into a tight spot? Parkit360’s Motorized Electric Trailer Dollies are perfect for storing boat trailers, RVs and other travel trailers. They will move up to 15,000 lbs and are compact enough to fit in the trunk of a small sedan. Made with high-quality North American materials and backed by a 2 Year Warranty, Parkit360 Trailer Dollies can move almost any trailer with ease and perform well on a wide variety of terrains.

Parkit360’s Force ISC™ and Transformer models are compatible with almost every trailer right out of the box thanks to their ball-mounted Stablelock technology. Just freewheel the dolly to the trailer, connect it to the hitch, and use the forward/reverse controls to steer your trailer into place. For other hitch types, Parkit360 offers a wide range of adapters to accommodate everything from large Fifth Wheel and Gooseneck trailers to Pintle Hitches.

Unlike a driver, who relies on mirrors and backup cameras, a Parkit360 user faces the trailer, giving them complete visibility and control. They can see exactly where the trailer is at all times and steer within inches of an obstacle if needed. If there’s any doubt, it’s simply a matter of walking over to check. And unlike using a car or truck, the trailer can be parked with the coupler end forward as a serious theft deterrent.

The 5K, 10K, and 15K Dollies can handle up to 5,000, 10,000 and 15,000 lbs respectively and are great for mixed terrains, tight corners, and up to a 6% grade. Plus, all Mainland US customers can enjoy free shipping on orders over $600.

Have a unique parking situation or questions about which model is right for you? Sales experts can help you choose a dolly that’s customized to fit your needs. Make maneuvering around obstacles and tight corners a breeze!

Key takeaways:

• Runaway prevention features on Parkit360 electric trailer dollies
• How to see and navigate safely while using our dollies
• Intelligent Speed Control™ to prevent wear and tear
• How our unique Stablelock technology provides the most secure connection

Note: As of 2025, some of our features and policies have changed. Please refer to your product manual for the most up-to-date information.

If you’ve clicked on this blog, I bet I can guess what you’re thinking – maybe something along the lines of: “How is that little thing going to effectively and safely move my massive trailer?”

Good news: you’ve come to the right place!

Not only do we have all the information you need to answer your question, but you’ll find that our electric dollies offer some of the best safety features on the trailer-moving market.

We get that you have concerns. This is a big investment, and an even bigger risk if it doesn’t work well. (Seriously, who wants to pay thousands of dollars to repair trailer damages if something goes wrong?)

We want to do what we can to give you some peace of mind before you purchase our product.

In this blog, we’ll address some of the common questions and concerns we get from people just like you.

Let’s get into it!

1. “Will this thing just roll away with my trailer?”

Absolutely not!

When people come across our products, one of their first concerns is a runaway trailer. I’m happy to tell you that we have lots of safety measures in place to make sure that this doesn’t happen.

First of all, the wheels of our electric trailer dollies lock automatically. When the motor is in “engaged” mode, the dolly wheels stay locked, unless you press the forward or reverse controls. With the wheels locked, the unit can only rock an inch or two in each direction. This will easily keep small trailers from rolling over the unit, and prevent the mover itself from running out from underneath the trailer.

The added benefit of this is that the dolly will automatically stop as soon as you release the controls. So, if your hand ever slips off the controls for any reason, you can rest assured that the unit would come to a stop on its own – no braking required!

The second feature that keeps your trailer from rolling away is the automatic trailer brake control. All of our motorized units are equipped with a 7-pin plug to connect your trailer’s brakes to the dolly. As long as the dolly is powered on, the trailer brakes will automatically activate when the unit stops moving. The only time your electric brakes will release is when you press the forward and reverse controls. For boat trailers, the brake connector will lock out the surge brakes only when the controls are being pushed.

Additionally, our units use 12 volt deep cycle batteries because they will always hold some power in reserve. That means that your brake controller will never stop working, even if the battery doesn’t have enough charge for to operate the dolly.

Of course, our electric units still have limits. For trailers under 10,000 lbs, that limit is a 6% grade; for trailers over 10,000 lbs it’s a 4% grade. Operating on a grade higher than this can be dangerous and could result in that dreaded loss of traction.

2. “How can I see around my trailer to steer safely?”

It’s actually quite easy to see everything you need to see while operating a Parkit360 dolly.

For starters, you can get that bulky tow vehicle out of the way – no more mirrors necessary when you can stand right in front of your trailer.

Secondly, you can count on those handy braking features we discussed earlier to keep your trailer and dolly parked in place while you walk around to check your clearance.

But the best option for good visibility while steering is a feature exclusive to our Transformer 15K: the wireless controller. With the controller in your hand, you can move your trailer from any angle. Stand beside the trailer to check the back corner clearance, or position yourself just right to get a good view of that narrow garage opening. Basically, you’ll have a 360 degree view, so you shouldn’t ever have to worry about hitting anything again.

Plus, you won’t need a spotter anymore!

3. “Could the tugging motion cause damage to my trailer?”

We’ve specifically designed our trailer movers to reduce the amount of tugging force placed on the trailer during operation.

The trademark feature of every Parkit360 electric trailer dolly is our Intelligent Speed Control™ (ISC). What this does is offers you, the operator, an option to move the dolly at either fast speed (approx. 60 ft/min) or slow speed (30 ft/min). This, of course, gives you greater control over the steering, but can also be used to reduce strain on the trailer.

Built into the ISC is a gradual ramp-up and ramp-down component. We found in testing that a lot of trailer dolly motors started and stopped rather abruptly, resulting in strain on the coupler and damage to some of the goods inside the trailer. When you press a control on the Parkit360, the unit will gradually begin moving until it gets up to speed, and when you release the control the motor will steadily reduce speed while activating the trailer’s brakes.

4. “Could the dolly drop my trailer?”

No, not if you follow the proper connection process. When you adhere to all the instructions and safety warnings, your trailer will stay securely connected to the dolly.

Our standard Ball Mount Adapter is designed with Stablelock technology that secures the adapter to your trailer, preventing any tilting or spinning within the coupler, and keeping your trailer from coming disconnected while using the dolly.

Stablelock technology works by tightening the whole assembly to provide a completely flush, solid connection between the Ball Mount Adapter and the base of the coupler. The Hitch Ball itself also has two small weld spots that help secure it into place within the coupler.

In the case of a connection gap or a step-down coupler, we have also created a Thrust Washer that can be inserted to reinforce the proper connection.

We also have adapters for other connection types, including the Pintle Hitch Adapter, the Telescopic Frame Adapter, and Fifth Wheel and Gooseneck Adapters. These have all been designed to provide a fixed, stable connection point.

Essentially, when you connect one of our adapters, you’re creating a secondary jack post on your trailer, and then inserting that into the trailer mover. (Speaking of which, you could also connect to the dolly by dropping your jack post right into the receiver tube for a simple and secure hook-up).

The only time the dolly will pull out from under your trailer is if the connection is not properly flush. (Or – as one customer shared – if you forget to remove the chocks from your wheels.)

Be sure to insert your coupler’s latch pin when connecting to our Ball Mount Adapter to prevent the latch from opening while the dolly is in operation.

As long as you follow all of these steps, you can trust that the dolly will stay steady and secure.

Have more questions about Parkit360 safety features?

If you have a question that we didn’t cover, we’d love to hear from you.

We want our customers to have the utmost confidence in our product. If that means taking time to talk with you before you buy, we are happy to do so.

Plus, you may not be the only one with that specific concern. By bringing it to our attention, you allow us to address it for all of our customers.

Submit your questions here.

Note: As of 2025, some of our features and policies have changed. Please refer to your product manual for the most up-to-date information.

If you’re wondering, “How do I know if my hitch system will work with a trailer dolly?”, then you’ve come to the right place.

There are lots of different hitch types out there, many of which have special features to make your towing experience more secure and stable.

But not all of these couplers connect to a standard trailer dolly.

At Parkit360, we’ve done our best to create adapter options to suit as many of these hitch types as we can. These adapters are specially fitted to ensure the tightest connection possible between your trailer and the dolly, so you don’t have to worry about your trailer tipping, coming loose, or getting damaged.

Let’s dive in to explore a list of our available adapters, the types of couplers that are compatible with them, and what a proper connection should look like for each one.

Ball Mount

Our standard hitch balls come in 2” and 2-5/16” diameter, the most common hitch sizes. These will be compatible with most camping trailers with a rear receiver style of coupler.

Additional hitch balls can be ordered for 1-⅞” or 50 mm (UK standard size).

Weld spots keep the ball from spinning. They should always be turned to 10 o’clock, unless using a Bulldog Collar-Lok system (more details below)

What connection types work well with this adapter:

• Rear receivers - Does your trailer have a standard ball-mounted rear receiver system? Then you will have no problem connecting your trailer to a dolly. These are the most common and versatile hitch types, and can easily be used on vehicles of all sizes. In fact, some trucks come with ball mounts already installed and ready for towing. The vehicle hitches themselves are sold in five classes, based on maximum weight capacity.
• Demco EZ-Latch - These rear receiver latches have an auto-lock feature that lets you hook up a hitch ball while the latch is in a closed position. Their rather low profile and flat tongue shape make them durable and easy to connect to a hitch ball. Be sure to use your trailer’s latch pin if you have a Demco EZ-Latch.
• Folding tongue coupler - A folding tongue coupler is essentially the same as any other rear receiver, but with one added feature: the tongue has a hinge where it fastens to the trailer frame so that it can be folded out of the way when in storage. This coupler type easily attaches to the trailer’s tubing to convert the tongue and save more space.

Note: All Ball Mount-compatible trailers can also be used with our EZ Connect Adapter if you have one of our Force models. The EZ Connect offers a simple drop-and-go connection for straightforward parking jobs.

Thrust Washer

Included with all ball-mounted dollies, our Thrust Washer helps to create a tighter connection between couplers and the ball mount. The removable puzzle piece allows for extra space in the case of an obstruction (step-down), or it can be inserted to provide a greater surface area when tightening the hitch, especially if there is a gap between the tongue and the ball mount.

Options for angled and straight Atwood attachments allow you to switch out the puzzle piece to suit these unusual hitches, commonly found on Jayco trailers

What connection types work well with this adapter:

• Bulldog Collar-Lok - Designed for uses such as utility, livestock, cargo, and construction, these clamshell style hitches have a sliding ring for extra security for heavy-duty towing. These coupler types are not compatible with all trailer dollies, but they will work with Parkit360 trailer dollies as long as the hitch ball is set up with the spot welds facing 12 o’clock and a Thrust Washer is used to secure it tightly.
• Atwood couplers - Atwood is a large “ranch and home” company, whose hitches are commonly found on Jayco trailers. These hitches work quite well with trailer dollies, as long as you have the appropriate Thrust Washer connection. We make two specialized adapters (one flat, one angled) for Atwood couplers to create a flush connection where the flange prevents this. Our adapters fit around the raised lip of the coupler and secure it to the dolly for the best connection.
• Wallace Forge - Wallace Forge makes couplers for all manner of towing, from light jobs to heavy-duty trailers. Many of their coupler styles have a large step-down design (there is a sharp angle from the ball socket to the body of the coupler), so we are happy to provide custom Thrust Washer pieces to anyone with this type of connection. Contact our sales department (1-888-926-5517 ex.1, or sales@parkit360.com) to let us know what coupler you have and we will find a solution for you.

Pintle Hitch Adapter

If you have a Pintle hitch for your farm or industrial equipment, then the Pintle Hitch Adapter is the ideal way to connect to a trailer dolly. This adapter is made to suit the standard 3” diameter lunette ring, and is recommended for use with the Transformer 15K model. This extremely sturdy connection will allow you to tow farm equipment, generators, and dump trailers, to name a few.

What connection types work well with this adapter:

• Pintle hitch/Lunette ring - A lunette ring coupler is simply a solid metal ring, into which a Pintle hitch can be fastened. These clasp or hook type hitches are most commonly used for big towing jobs in farm and industrial settings. They are built for a better range of motion, making them great for rough terrain, but less compatible with trailer dollies. Luckily, our adapter offers a very secure way to connect your lunette ring coupler to our trailer dollies.

Telescopic Frame Adapter

The Telescopic Frame Adapter is our most versatile connection method. Instead of mounting your trailer on the dolly using the coupler, attach the Telescopic Adapter to the frame of your trailer to create a sturdy alternative connection point. We especially recommend this adapter for trailers with lighter tongue weight, or boat trailers – although it is not limited to these uses. Simply bolt it to the Y section of your trailer frame, lower the pipe into the dolly’s receiver tube, then slide in the locking pin.

If you have a hitch type that is not compatible with our dollies’ other mounting systems, then this is a great option.

What connection types work well with this adapter:

• Any, as long as the trailer has a y-shaped frame between these measurements: 2” x 4” and 4” x 6”. It is possible to use it on a smaller trailer frame if you add your own shims.

Gooseneck

With our Transformer 15K, we offer alternative connection methods that are common on larger trailers, one of those being the Gooseneck hitch. If you have a flatbed or transport trailer which uses a Gooseneck connection, we offer a specialized ball mount with stabilizer bars. These are custom items which require building specs such as the height of your trailer hitch from the ground, the hitch ball size, and the trailer leg style. Contact our sales department (1-888-926-5517 ex.1, or sales@parkit360.com) to order your custom Gooseneck adapter.

What connection types work well with this adapter:

• Gooseneck trailers - Gooseneck trailers have a very distinct look, with a “neck” that sticks off the front of the trailer, then connects down into a pickup truck bed at a 90 degree angle, where the hitch is attached to the truck frame. Goosenecks are most often found on flatbeds, horse trailers, and transport trailers.

Kingpin Adapter

If your trailer has a kingpin instead of a Gooseneck ball connection, then you need the Fifth Wheel version of our Transformer 15K. This comes with a 50” Kingpin Adapter, as well as stabilizer arms. As long as your Kingpin Box sits 48” to 52” above the ground, this will work to tow your Fifth Wheel trailer. If your measurements exceed this, please contact us before ordering.

What connection types work well with this adapter:

• Fifth Wheel hitches / Kingpins - Fifth wheels are commonly used for industrial semi trailers and large camper trailers. The fifth wheel itself is a horseshoe-shaped hitch, installed in a pickup truck bed, in which the trailer’s kingpin sits. The kingpin is usually a 2” or 3.5” diameter steel pin that hangs vertically from a kingpin box under the front of the trailer. These heavy-duty connectors are only compatible with some trailer dollies.

Jack Post Connection

Did you know that you can connect your Parkit360 straight to the jack on your trailer? Instead of inserting a connector into the dolly’s receiver tube, you can simply drop your trailer jack post in, and move it that way.

This connection method works best for trailers with a Gross Vehicle Weight of 8,000-10,000 lbs or with more than 800 lbs tongue weight, but is an option for any trailer that does not have a compatible coupler.

What doesn't work?

• Articulating hitches - We need a sturdy, constant connection in order to use the leverage from the dolly to move the trailer (without the trailer swaying, turning, or tipping).
• Hitch adapters - Anti-sway (sway bar) systems and weight distribution hitches often have adapters that stay on the coupler to make the connection to the tow vehicle simpler, but these adapters have articulating parts or specialized hookups that do not allow for a good connection to the dolly.

Examples:

• Hensley - These specialized anti-sway hitches use a linkage system to prevent side-to-side movement from the ball while still allowing a full range of motion in other directions. These hitches transfer weight to move the pivot point to the rear axle of the tow vehicle. Hensley hitches do not work well with trailer dollies at all due to their articulating motion. They must essentially be removed from a trailer in order to use the original coupler to connect to the dolly.
• ProPride - This is another specialized anti-sway hitch that uses a coupler adapter featuring articulating parts. This may be the most advanced hitch of its kind, and perfect for heavyweight trailers, but it is not compatible with any trailer dolly at this time. This type of hitch would require a lockout to convert it to a hitch ball connection type, but we’ve yet to find a solution that eliminates the flex in the lockout plate.
• Sway Bar Systems - In addition to Hensley and ProPride, there are a number of anti-sway hitch kits out there. A lot of sway bar systems use extra arms and adapters on the trailer to prevent too much side-to-side movement while driving, whether from wind, tight corners, or an imbalanced trailer load. These bars often interfere with dolly clearance, and the connection points are not often compatible. Other systems, like friction sway control bars, can be added to any hitch and are easy to remove for backing up or driving in slick conditions, meaning that these systems will not interfere with any trailer dolly connection as long as they are removed before connecting the trailer to the dolly.
• Lock & Roll - These articulating hitches are designed for off-road use, allowing for 3 axes of movement. These hitches are not compatible with standard dollies because of their wide range of movement and unusual coupler shape, but most trailers that use a Lock & Roll coupler can be connected to a dolly via Jack Post connection or Telescopic Frame Adapter.
• Andersen hitches - Andersen specializes in making high-quality gooseneck style hitches for fifth wheel trailers. They are some of the most innovative hitches available, making it possible to convert standard kingpin pegs to a gooseneck connection using a coupler block, but they have limited compatibility with specific trailer dollies.

Have a hitch type that’s not listed here, or want to ask further questions? Our sales team would be happy to talk to you about your trailer needs. Call 1-888-926-5517 ex.1, or email sales@parkit360.com.

While we’re primarily known for moving RV trailers and boats, our wide range of adapters allow us to park almost anything! 

Coming up on our 11th anniversary, we’ve seen a variety of use cases for our trailer dollies over the years. With 14,000 happy customers and counting, they continue to inspire us to develop new parking solutions for a wide variety of industrial applications.

Here are just a few of their parking success stories.

Industrial Facilities

One of our long-time customers needed to move parts of their assembly line on a daily basis. Moving large parts with limited factory floor space proved to be a challenge for them.

They needed a compact, self-powered solution that could work within a confined area. With a few minor tweaks to our Force trailer dolly, we were able to develop a customized solution that met their parking needs.

Airports & Hangars

Some airports are now using our trailer dollies on the tarmac! By attaching a hitch to their cargo loaders and staircases, they are able to move them in and out of place quickly as planes land. A few customers are actually using our trailer dollies to park their small aircraft!

Not all situations require a customized solution though. We have some standard Adapters that can help you get connected and set up quickly, without any modifications!

Pintle Hitch

A lesser-known use case is for pintle-hitch trailers. A lot of industrial and military customers tell us they’ve “been looking for this forever!”. With our Pintle Hitch Adapter, you simply line up your trailer’s hitch with the dolly and thread our adapter bolt into it. This can be done in a matter of seconds with a drill if you’re in a hurry.

Telescopic Hitch Adapter

Our Telescopic Frame Adapter is a non-invasive solution that bolts around the frame of your trailer. Just adjust the height of the telescoping pipe, lower it into our trailer dolly and go! For boats, we recommend attaching this adapter to the Y section of the trailer frame. This universal adapter can be used on a wide variety of trailers!

No matter the application, we can work with you to develop a safe, customized solution that will get your product where it needs to go!

Of course, our weight limits still apply and will vary depending on the hitch type: Ball Mount, Kingpin, Pintle, Gooseneck etc.. We have 3 Trailer Dolly models:

• Force ISC 5K
  5,000 lbs gross weight / 900lbs tongue weight
• Force ISC 10K
  10,000 lbs gross weight / 900lbs tongue weight
• Transformer 15K
  Maximum 15,000 lbs gross weight / 2,200lbs tongue weight

Have a specific use case that would benefit from a customized solution? Speak with one of our technicians today!

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