Electric Trailer Dolly for 4,000 lbs Pontoon Boat  

Question:

Expert Reply:

Hey Jeff!

The Parkit360 Force Electric Trailer Dolly # PA96VR is the perfect size for you. It's an electric dolly built to ease your load-lifting and allow you to steer and control without needing any additional help. This dolly can tow up to 5,000 lbs of trailer weight and will climb up to 6% grade hills, so your 2% grade hill will be light work for it.

It has a built-in 7-way outlet so that electric trailer brakes and lights can be applied when necessary. The 12V U1 battery is also included with the unit, as is the voltmeter, charger, and both a 2" and 2-5/16" hitch ball. It's able to run up to 90 minutes on a single charge and you'll want to stow away in a covered environment.

Overall, the # PA96VR is a great jack for your pontoon boat and having operated one myself, I highly recommend it. Are you only going to be using the jack for the boat, or do you have other trailers that will use it as well?

expert reply by: Jerry B

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Michael P.

10/29/2026

I have single axle camper, 20 ft, with a max weight of 3500 lbs. I store it on grass in the back yard. I had high hopes of moving it there without having to use my truck. It does not work. The dolly handle will fly up or down depending on which way you are moving. I had to put a piece of pipe on the handle to hold it. I have had the dolly ball pull out of the trailer togue twice and the togue fell to the ground. I had watched several u-tube videos of people using it on level paved surfaces without problems, so I was hopeful. The dolly itself seems well built. because it is a strait axle, the wheels turn together which makes it hard to make turns.

Jerry B.

10/29/2026

@MichaelP I'm sorry to hear it hasn't worked out the way you'd hoped! I can definitely understand your frustration, especially when the whole reason for purchasing it was to move your camper without needing your truck. Grass can be a challenging surface for these dollies, particularly if the ground is soft or uneven. You're also correct about the wheels turning together. That design helps with traction, but it makes tighter turns more difficult since the tires can't rotate independently. What concerns me most is the hitch ball coming loose from your trailer's coupler. That shouldn't be happening, and I'd recommend holding off on using the dolly until we can figure out why. The Parkit360 uses a Stablelock ball mount system that's designed to secure the trailer to the dolly, so I'd want to double-check that everything is properly seated and tightened. Could you tell me whether the ball itself is coming loose from the dolly or if your trailer's coupler is actually lifting off the ball? Also, is your backyard relatively level, or are you dealing with any slopes? I'd love to help figure out what's happening with the connection and whether there's a way to make this setup work better for you.

Michael P.

10/29/2026

I have tightened the dolly ball to the togue per Parkit directions. It is very tight but seems to loosen in use. It seems that while the dolly ball is being tightened, the ball is pulled down out of the togue. The area that I am trying to move the trailer in is fairly flat. I have tried putting it onto 3/4 plywood but have found that the dolly will not push the trailer on the board, even after cutting an angle at the front of the board.

Jerry B.

10/29/2026

@MichaelP Thanks for getting back to me with those details! It sounds like you've already put quite a bit of effort into making this work, and I appreciate you trying the plywood as well. Since your yard is relatively flat, I'm more concerned about the connection between the dolly's ball mount and your trailer's coupler than I am about the terrain. I looked into Parkit360's instructions a little further, and they recommend tightening the ball mount until there's no gap between the mounting collar and the bottom of the trailer's coupler. They also recommend moving the dolly slightly forward and backward, then retightening the connection 2-3 times before operating it. One thing that caught my attention is your description of the ball pulling down out of the coupler as you tighten it. Parkit360 offers a thrust washer for situations where the ball mount can't sit flush against the coupler, which may be worth investigating. I wouldn't recommend using the dolly again until we can confirm why that connection is coming loose. Would you be able to send me a couple of photos showing your trailer's coupler and the ball mount tightened into place? I'd especially like to see where the mounting collar meets the underside of the coupler. That should help us determine whether there's a clearance issue or something else preventing a secure connection. I know this hasn't been the experience you were hoping for, but I'd like to help get to the bottom of it!

Michael P.

10/29/2026

@JerryB I did send you a picture of the ball mount , but I am not sure if it worked.

Jerry B.

10/30/2026

@MichaelP Thanks for sending those photos over! They really help me get a better picture of what's happening. One thing I noticed is that the black mounting collar on your Parkit360 doesn't appear to be sitting completely flat against the underside of your trailer's coupler. There's a raised section on the coupler that may be interfering with the connection, although it's a little difficult to tell for certain from the pictures. Parkit360 actually makes a thrust washer specifically for situations where the mounting collar can't sit flush against the coupler. This helps accommodate certain coupler shapes and obstructions that would otherwise prevent a secure connection. I'm wondering if that's part of what's happening here. If the collar isn't making even contact, it could explain why you're having trouble maintaining a tight connection. Since you've already had the trailer come off the dolly twice, I definitely wouldn't recommend using it again until we can get this figured out. Did your Parkit360 come with a thrust washer, and have you tried using it? I'd also like to know if the collar sits firmly against the bottom of the coupler when tightened or if you're still seeing any gaps.

Michael P.

10/30/2026

@JerryB I am using the supplied thrust washer and the puzzle piece. The washers do fit tight against the coupler. The gap you see at the front of the coupler is because the first time I used the dolly I forgot to remove the chocks. When I tried to pull the trailer forward the dolly rolled forward and bent the lip of the coupler. The coupler still seems to sit all around the puzzle piece.

Jerry B.

10/30/2026

@MichaelP Thanks for clearing that up! I appreciate you sticking with me while we work through this. Knowing that you're already using the thrust washer and puzzle piece, and that both are sitting tightly against the coupler, helps eliminate one of my initial concerns. The bent lip does raise another concern, though. Even if the coupler still appears to sit properly against the puzzle piece, I'm wondering if the incident may have caused some deformation that's affecting how securely everything connects. Since you've had the connection come loose twice, I'd recommend having the coupler inspected by a qualified trailer technician before using it again, including for towing with your truck. I'd also like to get Parkit360's input on your particular setup to see if they can identify anything we're overlooking. One thing I'd like to clarify: When you say the connection loosens during use, is the ball mount actually unscrewing from the coupler, or does the entire connection seem to shift or rock even though the ball mount is still tight? That distinction would help us narrow down what's happening. I know you've already spent a lot of time trying to get this working, and I appreciate your patience!

Michael P.

10/30/2026

@JerryB It seems as though the ball keeps screwing in (tightening) and the ball slips out from under the lower part of the latch and pops off the coupler.

Jerry B.

10/30/2026

@MichaelP Thank you for clarifying that and for all the information and photos you've provided! I think we've reached the point where getting Parkit360 involved is our best next step. I'm going to reach out to the manufacturer with everything you've shared to see if they can help us identify what's causing the connection to fail. In the meantime, I'd recommend holding off on using the dolly until we can get this resolved. I appreciate your patience as we work toward a solution!

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