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CHAMBERLAIN

Chamberlain Group 7708CB Chamberlain 7708CB-P Chain Drive 8 Foot High Garage Door Opener Rail Extension Kit, Regular, Other, 12 Ft

    • Based on 636 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Dec 20
Order within 14 hours and 56 minutes
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Features

  • Fully compatible: the Chain Drive Rail Extension Kit for 8'-High Garage Doors is required for reliable, everyday operation of Chamberlain chain drive models in 8-ft. garage door applications..Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit.
  • Easy Setup: featuring a quick-install extension rail and replacement chain, the kit includes all necessary hardware and instructions for a quick and easy installation.
  • Includes one-year warranty, rail extension, replacement chain, all necessary hardware and an instruction manual for easy setup.
  • Proven quality: rigorous quality testing ensures lasting performance.
  • About Chamberlain: the largest and most dependable garage door opener manufacturer in North America.

Description

The Chain Drive Rail Extension Kit for 8'-High Garage Doors is required for reliable, everyday operation of Chamberlain chain drive models in 8-ft. garage door applications. Featuring a quick-install extension rail and replacement chain, the kit includes everything needed for quick and easy installation. Includes one-year warranty, rail extension, replacement chain, all necessary hardware and an instruction manual for easy setup. From the Manufacturer Chamberlain 7708CB 8-Foot Chain Drive Extension Kit

Brand: CHAMBERLAIN


Special Feature: Keyless


Item dimensions L x W x H: 38.5 x 3 x 2 inches


Material: Steel


Recommended Uses For Product: Extending the rail of Chamberlain chain drive garage door openers in 8-ft. high garage doors


Material Type: Steel


Item Weight: 4.8 Pounds


Item Dimensions: 38.5 x 3 x 2 inches


Global Trade Identification Number: 11, 83


Manufacturer: Chamberlain


Model Number: 7708CB


UPC: 012381180011


Brand Name: CHAMBERLAIN


Recommended Uses For Product: Extending the rail of Chamberlain chain drive garage door openers in 8-ft. high garage doors


Included Components: Rail extension, replacement chain, all necessary hardware, instruction manual


Color: Other


Item Shape: Rectangular


Style: Modern


Controller Type: Hand Control


Control Method: App


Special Features: Keyless


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Dec 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Afterpay Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • they worked great.
easy to install. worked great.
Reviewed in the United States on January 24, 2024 by drm
    • Exactly what I needed!
Fit perfectly and works as it should.
Reviewed in the United States on March 2, 2024 by pinky
    • Good product.
The extension worked as needed. Easy to install and include the longer chain needed. This was available on Amazon when the same item was on back order at Lowes
Reviewed in the United States on August 4, 2022 by Jeff Ray
    • Must Have for 8' door!
Simple to install and works as advertised. You must use this kit if you have an 8' garage door. It does seem silly and a waste of resources to send a new, longer chain and cable when all that is needed is a short piece of chain and a repair link. The original chain and cable is not even used.
Reviewed in the United States on October 18, 2014 by John Johnson
    • Extension was part of the package but didn’t need it
This part was included in the package I bought but I didn’t need it. The package was still cheaper than buying the parts separately.
Reviewed in the United States on January 13, 2024 by Christine
    • They recommended this opener rather than a cheaper model that
I called Chamberlain to ask about a replacement when my previous Lift Master/Chamberlain garage door opener failed after 20 years of service. They recommended this opener rather than a cheaper model that, on paper, should have worked. Chamberlain's customer service was excellent, by the way. This opener went up and worked like a champ first time with only one change to my existing mount points. I had to purchase a length extension because the length of the opener out of the box was too short, even though I was pretty careful to measure everything and compare to what the manufacturer's specs indicated were necessary. After I got the extension added to the opener, which was almost too easy, I moved my mounting point back about three inches from the previous location. I am very well satisfied with this product. ... show more
Reviewed in the United States on December 26, 2015 by George M.
    • Works for some Craftsman Chain Drive openers
I bought this in hopes it would work with my Craftsman 1/2 hp Model: 54985 . Turns out it fit fine. It was the exact same tube and chain type. I used it for a custom vertical mount to open roll up doors. Worked great. Going to order a second because its so inexpensive, to have as a spare chain.
Reviewed in the United States on April 1, 2019 by D. Jones
    • amazing quality
great quality
Reviewed in the United States on July 20, 2023 by Ronald Harris

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