Can anyone tell me if there is a universal remote for a garage door?

I found 1 Truly? Universal, had choice of 3 frequencies and the ability to learn or duplicate codes. Probably over 90-90% of receivers.
Do you need one for a certain brand?

Thank you. It's a Sears Craftsman, but an older model. Probably over 10 years old

Try these 2 sites:
Chamberlain do it yourself garage door openers and remotes (http://www.chamberlain-diy.com/diy04/home/)
Parts & Accessories | Shop & Find Lawn & Garden, Appliance Parts at Sears Parts Direct | SearsPartsDirect.com from Sears (http://www.searspartsdirect.com/partsdirect/index.action)
Worse case, just replace remote and transmitter.
Can you get the number off receiver?

Try these 2 sites:
Chamberlain do it yourself garage door openers and remotes (http://www.chamberlain-diy.com/diy04/home/)
Parts & Accessories | Shop & Find Lawn & Garden, Appliance Parts at Sears Parts Direct | SearsPartsDirect.com from Sears (http://www.searspartsdirect.com/partsdirect/index.action)
Worse case, just replace remote and transmitter.
Can you get the number off receiver?
Don't know, I'll check. Thank you