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Less chores. More life. That’s the big idea behind iRobot cleaning robots. Our goal is to simplify your cleaning routine, giving you back more time in your day. If you need assistance with shopping on our site, please call us at (800) 727-9077 and a customer care representative will be happy to assist you.
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Caster Assembly

Item Number: 83401

Replacement caster assembly. Compatible with Roomba 500, 600 and 700 Series.

Customer Rating:



In-Stock, usually ships in 1 - 2 full bus. days (Details)
No payments for 6 months

In-Stock, usually ships in 1 - 2 full bus. days (Details)

Ground Service Available
Note: Shipping restrictions may apply. (Details)

Gift Wrap Available (Details)

Gift Messaging Available (Details)

Sales Tax:Sales tax will be added at checkout.
Order Toll Free: 1.800.727.9077
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Compatible With:

Roomba 780
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Roomba 770
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Price: $ 449.99

Caster Assembly Full Specifications

Replacement caster assembly for Roomba 500, 600 and 700 Series.


  • 1 Caster Assembly

The iRobot limited warranty shall not apply to failures or problems which are caused by products or equipment not authorized by iRobot Corporation.

Country of Origin:China

Customer Reviews

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iRobotCaster Assembly

(based on 3 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars





      Best Uses

          • Reviewer Profile:
          • Homeowner (3), Pet owner (3)

        Reviewed by 3 customers

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        Displaying reviews 1-3

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        Caster seizes.

        By cleanfreak

        from Mission, British Columbia, Canada

        About Me Homeowner, Pet Owner

        Verified Reviewer


        • Easy To Clean
        • Easy To Install
        • Easy To Remove


        • Frequent Cleaning
        • Seizes After 1 Use

        Best Uses

          Comments about iRobot Caster Assembly:

          The wheel/caster bearing seizes after one use due to pet hair getting wrapped around the axle. Somehow the hair works into the caster bearing and then the caster seizes. This doesn't stop the Roomba from cleaning but seems to slow it down. The hair will also wear out the bearing and the axle mount. It's easy to clean by lifting out the caster assmebly, pressing out the wheel and removing the hair that's wrapped around the axle. Then you have to press the axle out of the wheel and blow out the hair and dirt from the wheel hub. The axle then slides back in and the wheel turns very easily. The caster needs a better bearing that prevents dirt and hair from causing it to seize.

          (1 of 1 customers found this review helpful)


          Don't understand why this wheel wears ou

          By Cindy

          from Asheville NC

          About Me Busy household, Homeowner, Pet Owner

          Verified Reviewer



            • Needed Customer Service Help

            Best Uses

            • Larger Rooms
            • Smaller Rooms

            Comments about iRobot Caster Assembly:

            Not really sure if I'm rating the wheel OR the Roomba but I love, love, love my Roomba 650. However, the front wheel wore out within about six months with daily use and I'm not sure why.

            I do have some quite well-worn wood floors that are the dogs domain so likely not that smooth but it would be good for engineers to explore why this is
            happening. However, customer service was great in helping me get a replacement.

            So, we'll anxiously see how this new wheel holds up. I'd not let this stop me from purchasing a Roomba; it does get pretty heavy usage with pet hair and less than glass finish floors.

            (3 of 3 customers found this review helpful)


            Need to buy these too often

            By Suz f

            from Pompano Beach, FL

            About Me Homeowner, Pet Owner



              • Ball Assemble Wears Out
              • Ball Assembly Wears Out
              • Ball Eventually Won't Sit

              Best Uses

              • Larger Rooms

              Comments about iRobot Caster Assembly:

              I love my Iroomba. This is my second one. First one went to live with my daughter and she loves it.
              However, the caster & ball assembly wears out and the ball won't stay in it. You cannot use the Iroomba without that little ball. So I have to order several of them at a time. It needs a little better engineering.

              Displaying reviews 1-3

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