ServoCity has a large offering of gear sets available for sale:

https://www.servocity.com/servo-gear-sets/

Thank you for your response, I've checked out this website but it doesn't have the specific gears that I need. Do you know any specific gears that can attach to a twenty-five-tooth servo?

Are you talking about the gear that goes inside the servo or something that connects to the servo horn?

I think you'll need to actually contact ez-robot through customer support, not their store. You'll have to write a message using their Contact Us form and ask if you can purchase the replacement servo gears.

Thank you DJ Sures for your response. So, if I understood you correctly, for a gear that connects to the servo horn, contact them directly?

Oh - so you want a gear that connects to the servo horn? Not an actual gear that goes inside?

Just to clarify, do you need one of these?

Servo Gear) 

or

Servo Horn) 

or

U Bracket) 

Oh yes, sorry for the confusion. I need some servo horns, potentially more of those depicted or even if there are any alternative options.

Sweet - i can tell you what... there will be A LOT available through ez-robot if you reach out on their Contact Us page. I know they don't have them on ez-robot's website, but with a request from a paying customer, i suspect they'll get added quickly

Otherwise, check out places like ebay or allibaba because you can get them for cheap in a HUGE lot if you're okay with waiting. Things like that are usually a lot cheaper when you're okay with waiting... and waiting...

Just to confirm, I am looking for gears of this type that are able to connect to an EZ-robot servo and act as a servo horn. Preferably in plastic though.