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Free Shipping on All Trailer Dollies - Mainland USA + Canada
Thrust Washer
Thrust Washer
Thrust Washer
Thrust Washer
Thrust Washer
Thrust Washer
Thrust Washer
Thrust Washer
Thrust Washer
Thrust Washer Thrust Washer Thrust Washer Thrust Washer Thrust Washer Thrust Washer Thrust Washer Thrust Washer

Thrust Washer

$50 USD

  • Seamlessly connect trailer to Dolly!

    The Thrust Washer is an optional Adapter designed for trailers with step-down hitches/lips and is included with all Ball Mount adapters. See Instruction Manual for details.

    The Puzzle Piece 

    The Puzzle Piece can be inserted to increase the height of the Ball Mount to provide more surface area while tightening or removed to bypass any protrusions on the hitch.

    The Atwood Adapters 

    Have a Jayco Trailer with an Atwood Hitch? Switch out the Puzzle Piece for one of our Atwood Adapters for our most secure connection to date!

    What does a proper connection look like?


    A flush, tight connection between the ball mount and coupler. Flat, without any visible gaps. A Thrust Washer is NOT required for this type of connection, but can be used to increase the connection height OR increase tightening surface area for a more secure connection:

    Ball Mount Connection - Standard. No Thrust Washer required.


    Required when protrusions on the trailer coupler prevent a flush, flat connection. Simply remove the Puzzle Piece to bypass them:

    Hitch Connection: Thrust Washer Required. Remove Puzzle Piece to bypass any imperfections on the hitch.


    Toll-Free: 1-855-996-9263
    Email: support@parkit360.com

  • Which trailer dolly is right for me?

    To choose the best parking solution for your trailer, you'll need to know:

    • Your trailer's gross weight (GVWR) and tongue weight
    • Your trailer's coupler style, including its height from the ground
    • The types of terrain you'll be moving on (including grade %)
    • If you'd prefer manual, electric or wireless operation

    Compare these details to our trailer dollies and accessories, or contact us.

  • Delivery Timelines

    Provided that stock is available, our products are usually delivered according to the following timelines:

    Mainland USA
    Force 5K & 10K – 1-3 business days
    Transformer 15K – 3-7 business days
    Carrier 13K – 3-7 business days
    Scout 3K – 3-7 business days

    Canada (depending on location)
    Force 5K & 10K – 1-6 business days
    Transformer 15K – 3-10 business days
    Carrier 13K – 3-10 business days
    Scout 3K – 3-10 business days

    For Open Box Trailer Dollies and Accessories, please allow 5-10 business days for delivery, regardless of your location.

    Delivery timelines are subject to change depending on severe weather or stock shortages.

    Force models ship the same day, as long as they are ordered before 5 p.m. EST.

    All Trailer Dollies will require a signature upon delivery. If you would like to waive this requirement, leave us a note at checkout.

    Note: We cannot ship Trailer Dollies to PO Box addresses.


    Shipping Internationally?

    We'd love to hear from you! Please Contact Us with your order and delivery details and we'll send you a shipping quote.

    Free shipping applies to all orders over $600 that are shipped within the mainland USA and Canada.

    Extra shipping costs will apply to the following locations:

    • Hawaii
    • Alaska
    • Vancouver Island, BC
    • Newfoundland and Labrador
    • P.E.I.
    • Yukon and Northwest Territories


    See our FAQ for more information.

  • Your Trailer Dolly is covered by our 2 Year Parts & Repair Warranty! If your Trailer Dolly fails to perform within this time frame, we will work with you to fix the issue and provide replacement parts. Each 12V U1 Battery is covered separately by a 1 Year Interstate® Battery Warranty. Find a Interstate® Service Location near you.

    (Warranties start from your initial date of purchase.)

  • Does each trailer dolly come with everything I need?

    Yes! Each trailer dolly includes a hitch adapter that's compatible with most ball mount trailer couplers. See the TransformerCarrier or Accessories page for additional connections. All electric models include batteries, charging cables, hardware and built-in safety features so you can park with confidence.

    What is the difference between gross weight and dry weight?

    GVWR (Gross Vehicle Weight Rating) includes the capacity of your trailer (how much you can put in it, including passengers). This is different from the dry weight, or unloaded vehicle weight (UVW), which is the weight of your trailer when empty.

    What is trailer tongue weight? Why does it matter?

    Tongue weight is the downward force that the trailer tongue applies to the hitch when connected to the trailer dolly. Using your Parkit360 for a trailer with too much or too little tongue weight could make moving and steering difficult, or cause issues with traction. We recommend that your tongue weight be 10% of your trailer's gross weight (GVWR), although this may vary for smaller trailers.

  • If you are not completely satisfied with your Trailer Dolly, customers in the Mainland US and Canada can return their unit up to 30 days after receiving their dolly for a refund, minus a flat return shipping cost and restocking fee.

    Parts Only and International Trailer Dolly orders are not eligible for return.

    Read our Full Return Policy