The caster will swivel to allow easy movement for that application. If the caster needs to be kicked it is possible the 800 pound load capacity is being exceeded.
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Ultra-Tow Adjustable Trailer Dolly with Caster, 800-Lb. Total Capacity, 15-3/8in.–24-3/8in. Adjustable Height, Flat-Free Tires

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Shipping:
Free shipping (lower 48 states) - Available nowStore Pickup:
Not available - online only
- 800-Lb. Total Capacity: Supports moving and positioning compatible trailers in storage areas and tight spaces
- 15-3/8in.–24-3/8in. Adjustable Height: Accommodates different trailer coupler heights for versatile positioning
- Flat-Free Tires + Swivel Caster: Includes (2) 12in. flat-free tires and an 8in. rear swivel caster for smooth rolling and steering
- Rear Caster Support: Helps reduce the trailer weight supported by the operator during maneuvering
- 30in. Wheelbase: Enhances stability and control during turns
See full description
Description
Key Specs
Reviews
Q & A
Warranty
Compare
Product Summary
What's Included
- (1) Ultra-Tow Adjustable Trailer Dolly
Downloads

Features + Benefits
- 800-Lb. Total Capacity: Supports moving and positioning compatible trailers in storage areas and tight spaces
- 15-3/8in.–24-3/8in. Adjustable Height: Accommodates different trailer coupler heights for versatile positioning
- Flat-Free Tires + Swivel Caster: Includes (2) 12in. flat-free tires and an 8in. rear swivel caster for smooth rolling and steering
- Rear Caster Support: Helps reduce the trailer weight supported by the operator during maneuvering
- 30in. Wheelbase: Enhances stability and control during turns
- 41-1/8in. Handle: Provides leverage for moving and positioning trailers
- Heavy-Duty Steel Construction: Solid steel frame with corrosion-resistant hammertone powder-coat finish
- 1-7/8in. Hitch Ball: Included for attachment to compatible trailer couplers
Key Specs
| Attribute | Specification |
|---|---|
item# | 58020 |
Brand | Ultra-Tow |
Manufacturer's Warranty | 1 year limited warranty |
Ship Weight | 45.6 LB |
| Attribute | Specification |
|---|---|
Capacity | 800 lb |
Tire Type | Flat-Free |
Product Weight | lb |
Dimensions L x W x H (in.) | 39.4063 x 34.4063 x 32.0 in |
Reviews
Questions & Answers
Questions
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· 8 years ago
Is it easier to move a loaded boat trailer with the caster? A lot easier? Or do you have to constantly "kick" the wheel in place?
We have to kick the regular boat trailer in place all the time when we're trying to guide it into the garage or carport. So, would it be better to get a dolly without the caster? Thanks!
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UltraTowExpert11· 4 years ago
Helpful?
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WoofTX· 6 years ago
I've had both and the caster helps with a heavy weight.
Helpful?
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· 8 years ago
Having the run flat tires I assume they are a solid type. How does this effect the maneuverability over grass,rocks or other obstacles?
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UltraTowExpert11· 4 years ago
The dolly will come with flat-free tires. A flat free tire will have less give and cushion when running over rocks etc. than a pneumatic tire.
Helpful?
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WoofTX· 6 years ago
They are plenty hard to go over anything. However, the foam in my tires broke down after about 3 years and required replacing.
Helpful?
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· 2 years ago
Will this work with 2" coupler?
1 answer-
UltraTowExpert12· 2 years ago
The 1-7/8" ball could accommodate a 2" coupler if the coupler has an adjustable collar.
Helpful?
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· 5 years ago
Can you easily change out hitch ball to 2" or a 2-5/16" ball?
1 answer-
UltraTowExpert11· 4 years ago
The 1-7/8" ball can be swapped out to a different size hitch ball. The shank diameter is 3/4".
Helpful?
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· 5 years ago
6 X 12 CARGO TRAILOR RAMP DOOR 1500 POUND TOTAL WEIGHT WILL A 600 LB OR 800 LB WORK
1 answer-
UltraTowExpert7· 5 years ago
This is designed for a maximum tongue weight of 800 lbs.
Helpful?
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· 5 years ago
how hard to move on loos gravel
1 answer-
UltraTowExpert7· 5 years ago
The 12" tires and 8" rear caster make for smooth maneuverability on many surfaces. This will help when moving on loose gravel.
Helpful?
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· 5 years ago
Is it possible to get a replacement tire/wheel combo for this unit.
1 answer-
UltraTowExpert11· 4 years ago
The replacement flat free tire/wheel assembly will be part number UT44659-9. To order, please contact our sister company Jack's Small Engine at 877-737-2787.
Helpful?
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· 6 years ago
My trailer has a pintle lunette. The ball doesn't appear removable; there is no accessible nut. Does this product have a pintle hitch connector that we can replace the ball with? Thanks
1 answer-
UltraTowExpert29· 6 years ago
The hitch ball on this dolly is removable. The adjustable tube is threaded to fit the hitch ball. This dolly does not have a pintle hitch connector available.
Helpful?
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· 8 years ago
I know a single axle trailer can be moved with this but, can a tandem axle trailer be manuevered.
1 answer-
UltraTowExpert30· 8 years ago
This Ultra-Tow Dolly can be used on a single or tandem axle trailer. It is designed for a maximum tongue weight of 800 pounds.
Helpful?
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Warranty
Manufacturer's Warranty
1 year limited warranty
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Specifications
800 lb
1,500 lb
6,000 lb
6,000 lb
Flat-Free
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Flat-Free
Flat-Free
lb
104.0000 lb
51.0000 lb
45.0000 lb
39.4063 x 34.4063 x 32.0 in
44.0 x 43.0 x 34.0 in
29.0 x 13.0 x 43.0 in
29.0 x 13.0 x 43.0 in
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Alloy Steel
Alloy Steel
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Yes
Yes
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8 in
8 in
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-
Gray
Gray
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Yes
Yes
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