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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: $ 499.99

Roomba 760
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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

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iRobotCaster Assembly

(based on 4 reviews)

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of respondents would recommend this to a friend.

Reviewed by 4 customers

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Wheel Gets Loose and Falls Off

By Five Dogs and Two Cats

from Alabama

Verified Reviewer

Comments about iRobot Caster Assembly:

A review posted earlier saved me from ordering another front wheel. We have the same problem -hair gets caught in the front wheel mechanism and afterward repeated cleanings, it gets loose and falls out constantly. Normally we just put it back and restart it. This time, we could not find it anywhere. After checking this website and the previous reviews, I checked under the brushes and there it was. Irobot, you need to fix this. The machine is great but this problem is annoying. I've had my Roomba for years and it has lived through a period of five dogs and two cats in the house. Including a very large and very old and excessively shedding Lab. We love it but you really should have fixed this problem by now. Would a new caster assembly fix the issue? I guess I could fork out the $1.99 for one of those. LOL

(2 of 2 customers found this review helpful)


Another caster assembly

By doc

from Naples, Florida

Verified Reviewer

Comments about iRobot Caster Assembly:

We have two dogs that keep the IROBOT pretty busy. I concur with a previous observation that this caster assembly is one of the weak spots of an otherwise good product. This is the third caster assembly I have gotten (two covered by warranty-I am tired of the warranty thing and now will buy 4 of them because I KNOW this assembly will break). This IROBOT, advertised for its use with pet hair, is really not up to the task. Very disappointing. I DO like this IROBOT and will continue to use it and replace parts.

(1 of 1 customers found this review helpful)


Used Sugru to fix this

By Kris Loves Roomba

from Colorado Springs, CO

About Me Pet Owner

Verified Reviewer



      Best Uses

        Comments about iRobot Caster Assembly:

        When the front wheel came loose, I used a little bit of Sugru. Sugru is rubbery, so I assume I'll be able to get the wheel out next time I want to clean it. I put a dab of Sugru, held the wheel in place as I turned it upside down, and let it cure for a day. Works great!

        (8 of 8 customers found this review helpful)


        Wheel falls out!

        By Kathy from Minnesota

        from Woodbury, MN

        About Me Homeowner, Pet Owner

        Verified Reviewer



            Best Uses

              Comments about iRobot Caster Assembly:

              The last review was spot on! I have a dog and 2 cats, and the hair gets caught up in the wheel assembly. As you have to remove it to remove the hair that gets caught up in it, soon the wheel ball is so loose it just falls out. I spent 45 minutes looking for it thinking the cat took off with it, when it was actually pulled in between the cleaning brushes! Very frustrating!

              Displaying reviews 1-4

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