Yes, it will work with your Series II Garage Door Opener
344486
If your old remote looks just like what's pictured here, and you have a Series II garage door opener, this remote will work. And if you're wondering how to request a specific remote code/frequency, stop wondering. Each remote is factory set with a different frequency, and your garage door opener will learn to recognize the new signal. This "learning" takes all of 10 seconds and involves pushing a button on your door opener once (so you'll probably need a ladder) and then pushing the button on the remote twice. Done. Now your new remote opens your garage door. The packaged instructions are just about as easy to read as what I've written here. The remote even comes with an Energizer battery pre-installed, so you need not make a trip to the store. Too easy.

As for buying it at amazon.com, I first went to the Genie web page trying to find a replacement remote. After muddling around through several pages of not-what-I-needed, I decided to check amazon on a whim (since I buy everything else from amazon). There it was. Right product found within seconds. I hear it's half the cost on amazon also (but because I gave up looking elsewhere, I can't confirm this). Anyway, amazon has never done me wrong in more than 10 years of shopping, so I'll keep coming back.
1027865
This is a great product to open your garage door. Easy to mount and program. It took me longer to open the package than to mount and program. Make sure before you order that it works on your opener model.
2038065
Different key pad for different model. This did not work for me had to get different pad. Check the color of the learn button on the back of your opener so that you can buy the right key pad.
2421846
Yes, you may have to press the button 17 times to get to your model, but just keep pressing and it will work.
I've got mine working on two different openers, ordered a second one for my girlfriend, both going strong.
3512824
works great as long as you read and follow the instructions on your garage door opener and this unit.  i have a craftsman opener from 1995 and this remote works fine.
775852
I needed another garage door opener remote for my Chamberlain Access Master garage door opener.  I looked at the model number on the back of my current remotes, looked on Amazon, and found the exact same model 371LM.  I was wondering if I had to buy a battery for the remote, but to my surprise, the remote already had a battery installed.  It literally took 2 seconds to program the garage door opener to accept this remote.  I'm very satisfied and may even buy another in the future as a spare.

LIKES
Easy to pair with my Chamberlain Access Master garage door opener, literally took 2 seconds
Battery included!

DISLIKES
None so far.  Its a perfect match for the other remote controls.
3915048
I bought 2 of the Skylink 69P Universal Remotes for my 2010 Craftsman Garage Door Opener, but I tried to program them with no success. I went on the Skylink website with hopes of some help. This unit is not programable to newer units. and not ones on 315 MHz. If you have a newer unit than 2002 past this by.
2805013
works on Sears older style garage door openers (only one button, but if you have the removes with one large and two small blue buttons, this one works, too).
920860
Works with LiftMaster 8355 with MyQ and Security+2.0
My installer told me this keypad (which worked great with my ancient, but now dead, genie opener) would not work with these newer model LiftMaster (made by Chamberlain) garage door openers, but the user manual for the Klik2U said it was compatible with LiftMaster/Chamberlain units with the yellow Learn button. My LiftMaster 8355 has a  yellow learn button and sure enough, it works!
Follow the instructions for "type 4" and use ID 8 as indicated. My first try failed (not sure why, but i think i did not hold the Klik2U close enough (within 2 feet) of the unit during the 'learn mode' steps), but the 2nd attempts succeeded.
(Note that I am not using the MyQ (wifi and smartphone app)  features, but I assume it will not cause problems with my Klik2U keypad.)
Highly recommended.
3716109
I'm sure it works for what it is meant for so I'm not gonna knock stars because the person at Chamberlain/Liftmaster told me to get the wrong one. If you don't have a sensor at the bottom of the garage door this is probalby not the one you need. Firefly 390LMD21K is the one that worked for me.
3368457
Success! I saved myself hundreds of dollars by not having to replace my opener! So glad I bought this. My garage opener is a Sears model 139.655000 circa 1979 opener that had 1 remote which broke. I tried the universal remotes at Home Depot thinking they would work as long as I matched the dip switch code exactly. No go. My receiver still worked (Sears model 139.654020) however now there was no remote on the market to work with it. I thought I would try this option before shelling out the $300-$400 to replace the opener itself. It worked!  With the new receiver plugged into an outlet I then wired the bell cable from the receiver to my existing opener, replacing the existing bell cable. This of course bypassed my old receiver. I programmed the remotes as instructed and bam! The garage opens with the new remotes and from the receiver button.

For those of you curious....my old remote/transmitter was Sears model 134.654031

Tips:
It is best if you can plug the receiver into an outlet where it's handy to get to since it has the button on it to open the garage door from being inside your garage. If this is not possible at least this comes with 2 remotes so you can use one to keep in a handy spot in your garage to open the door and then just keep the other remote in your car.

The bell wire that is provided is very long but just to clarify it does have to run from that receiver that you have plugged in an outlet and up to the garage unit opener itself. I plugged my receiver in an outlet near my garage door to my house and I secured the cable up the wall and along the garage ceiling then down to the opener bell cable screws.

I hope this helps someone in the same pickle I was in.
4859893
This is not a truly universal product! I have a Wayne Dalton garage door opener. I didn't find out until I had to call Chamberlains horrible tech support that my door opener was not covered. Do your research before buying!
820833
This is not a universal remote. If you have a Lift Master with the original remote marked "SECURITY +", this inexpensive remote does the job.
3102653
Apparently there are different remotes for the older Chamberlain 390 mhz openers. My opener was manufactured on 01/99.

While my model 4620 opener has an orange "learn" button, the programming instructions are different than what is shipped with the Liftmaster 971LM.

I tried both sets of instructions but neither work. Any idea if these are compatible?

Liftmaster programming instructions:

1. Press and release the learn button. (LED will light)
2. Within 30 seconds, press and hold the button on the remote for three seconds. The LED indicator light will turn off or the operator lights will blink indicating programming was completed successfully.

MY Chamberlain 4620 programming instructions (on side of opener):

1: Press and hold transmitter push button.
2. Press receiver code button. (I guess they mean the Orange "learn" button)
3. When opener light flashes, release both push buttons.

BTW, my two original remotes have LEDs. The new remote does not.
4937726
Make sure you read the instructions.  You must "tell" the remote what type of opener you have before programming. Works great once you do that.
1516148
This opener will not work with LiftMaster or any other brand of garage door opener. I did not find this fact in the specifications or in the reviews. DO NOT BUY THIS UNLESS YOU ARE GOING TO USE IT ON A GENIE GARAGE DOOR OPENER. I had to return it and order a wirless remote for my LiftMaster garage door opener.
3806663
I have old Craftsman garage door opener. This remote connected to the door opener from the first attempt. Very good product!