$58.18
Pay $33.18 after $25 OFF your total qualifying purchase upon opening a new card. 
Apply for a Home Depot Consumer Card- Fully opens garage doors up to 8 ft. high
- Quick-install rail system
- Includes required 8ft belt and rail extension
- View More Details
Product Details
Specifications
Questions & Answers
101Questions
Q:Will this extension work with the Chamberlain B4655TMC?
by|Sep 11, 2023
1 Answer
Q:Will this work for the B4655T opener?
by|Sep 3, 2023
2 Answers
Q:I have the B4505T already hung and working. My door is 73inches so I need the extension kit. Will the rail on the existing unit come apart so I can add the extension pieces?
by|Sep 2, 2023
2 Answers
Q:will this work with a Chamberlin B2215T model?
by|Aug 11, 2023
1 Answer
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Aug 16, 2023
Warning: You probably need to spend more
I have owned several houses over decades and never had a 7' door. I was surprised that what I bought was insufficient. Now I have to pay more, wait for the delivery, go without an opener until it arrives, and be irritated just because they didn't make it clear on the box. It is in small print on the bottom of the side near the warnings about potential lead exposure as required by CA.
by
Response from TSC Social TeamAug 17, 2023
We apologize for the issue you've experienced with your product and the inconvenience. Thank you for being a customer and for taking the time to review our product. We appreciate your feedback and will be shared with our team. Should you have any comments, concerns or questions feel free to contact customer support. https://support.chamberlaingroup.com/s/contact-us
Customer review from Chamberlain-DIY.comJan 13, 2023
Easy to assemble. The instructions and BILT app were well...
Easy to assemble. The instructions and BILT app were well done. Both units have functioned very well and relatively quiet. I have been very pleased with product.
by
Jul 27, 2021
The Chamberlain 8ft belt drive extension was very easy to do took ten minutes to install came wit...
The Chamberlain 8ft belt drive extension was very easy to do took ten minutes to install came with easy instructions and all the hardware needed longer belt new bolts and chain link. It is a must have if you have a 8' door the opener only comes for a 7' door nice quick fix thanks.
by
Jul 22, 2020
Worked as described. Instructions are easy especially when using the video. Works great.
Worked as described. Instructions are easy especially when using the video. Works great.
by
Oct 8, 2019
Huge improvement over my base model Chamberlain opener. Spend time...
Huge improvement over my base model Chamberlain opener. Spend time reading the instructions as they’re convoluted in a few areas. Connecting to the internet easier than expected. Adjusting the up and down travel took time because instructions are in fine print. Best to look at YouTube
by
Jul 30, 2019
I recommend instead of buying this extension kit, that you contact a local liftmaster dealer and ...
I recommend instead of buying this extension kit, that you contact a local liftmaster dealer and buy an one piece 8 or 10 foot rail kit. With rail, belt, and trolley it should be less than $100. You have to be prepared to bring the long rail home, but it is much more rigid. I reused the longer rail from my 13 year old Chamberlain, when it was starting to die. Bolted to the new opener just like the old one.
by
Response from TheChamberlainTeamAug 14, 2019
We are sorry to hear that this product did not meet your expectations. Should you have any questions, please email us at social@chamberlain.com.
Aug 21, 2018
The extension worked perfectly and was easy to install giving plenty of extra travel to my Garage...
The extension worked perfectly and was easy to install giving plenty of extra travel to my Garage Door opening and closing .
by
Response from TheChamberlainTeamAug 22, 2018
Kenneth, thank you for taking the time to review our product. We are happy that you are satisfied with your recent purchase.
Apr 29, 2014
Works great, but overpriced
Installation instructions were short, simple and concise. Just be sure you line up the rail assembly correctly with the larger end circular punch out on top.
by
Aug 22, 2013
This product is needed for a door higher than 7 feet
The rail extension was made of the same quality material as the rail that came with the Chamberlain door opener. It was well packaged and had all necessary parts to install. They even thought of a longer string for the emergency release! The only difficulty I encountered was understanding which sections of the original rail to remove so that after adding the extension the rail was the correct length. But I figured it out and the rest was simple!
by
Sep 28, 2023
Easy to add to the standard 7-foot opener kit
by
0/0
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