Model # 7708CB

Internet #100431682

Store SKU #293784

Chamberlain 8 ft. Chain Drive Extension Kit
0012381077083

Chamberlain

8 ft. Chain Drive Extension Kit

  • Fully open garage doors up to 8 ft. high
  • Quick-install rail system
  • Durable chain drive replacement belt
$30.77 /each

Frequently Bought Together

Product Overview

The Chamberlain 8 ft. Chain-Drive Extension Kit is compatible with Chamberlain chain drive garage door openers (Does not fit Chamberlain Model # HD220 Internet # 205215863 Store SKU # 1000053358t). It comes with a rail extension and replacement belt and can be used with garage doors up to 8 ft. high. Easy to install.

  • For use with garage doors up to 8 ft. high
  • Works with all Chamberlain chain-drive models
  • Kit includes rail extension and replacement chain
  • Comes ready to install with complete instructions
  • Note: Product may vary by store

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Customer Questions & Answers

18 Questions31 Answers

Customer Questions & Answers

8 ft. Chain Drive Extension Kit
8 ft. Chain Drive Extension Kit

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This question is from 8 ft. Chain Drive Extension Kit
 
5 answers

can this extension really be used with the Chamberlain model #995XD 1/2 HP system?

This question is from 8 ft. Chain Drive Extension Kit
Asked by
Dave
Spanish Fork UT
July 15, 2011
The extension rail looks radically different than what I have. I have not unpacked the instructions. but wanted your input first. Some time ago I was quoted to use extension kit # 7806CB. My local Home Depot does not carry that unit.
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Answers (5)

Asked by
Odessa, TX, USA
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July 2, 2013
Answer: 
the extension kit I purchased worked well with my opener.
4.652 out of 5 (207)
Premium 1/2 HP Chain Drive Garage Door Opener
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Asked by
Marco Island, FL, USA
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September 11, 2012
Answer: 
if your garage door opener is a screw drive design, built after june 2007, then yes this is the right part.
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Asked by
Hollywood, FL, USA
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February 13, 2012
Answer: 
you proply have an older kit that would look tike a "T" looking down the front of it
the new kits look like the boxed rail
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August 3, 2011
Answer: 
The Chamberlain 995XD is a screw drive and would need a screw drive extension kit. The 7806CB is a screw drive extension. They will work together
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Asked by
Atlanta, GA
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July 19, 2011
Answer: 
Greetings,
My name is Tom from Home Depot’s How to Community found at www.community.homedepot.com and thank you for your question. You are correct, the model number for the extension kit you need is 7806CB which is for a screw drive unit such as your model 995XD. The one pictured on the link you forwarded is model number 7808CB, and is for a chain drive as described. It will not work for your unit
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This question is from 8 ft. Chain Drive Extension Kit
 
3 answers

Does this work with the NEW HD220 1/2 HP Chain Dr?

This question is from 8 ft. Chain Drive Extension Kit
Asked by
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December 6, 2014
The HD220 is a new GD opener being stocked in stores. Does this extension work with it?
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Answers (3)

Asked by
CAPE CORAL , FL.
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October 23, 2015
Answer: 
IT SAYS IT WON'T IN ABOVE PARAGRAPH....DXD
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Asked by
Kannapolis, North Carolina
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March 3, 2015
Answer: 
Yes
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December 8, 2014
Answer: 
The HD220 will not work with the extension kit.
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This question is from 8 ft. Chain Drive Extension Kit
 
2 answers

will this fit the Sears 3/4 HP chain drive model # 54990 made by chamberlain???

This question is from 8 ft. Chain Drive Extension Kit
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July 28, 2016
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Answers (2)

August 1, 2016
Answer: 
Hello Tabo - Yes, this extension rail will work with your Craftsman garage door opener.
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Asked by
Chicago
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August 1, 2016
Answer: 
Yes it will fit.
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This question is from 8 ft. Chain Drive Extension Kit
 
2 answers

Can I use the extension chain as a replacement for the chain/cable on the PD212D model?

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Asked by
New York, NY
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April 8, 2016
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Asked by
Chicago
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August 1, 2016
Answer: 
It would only work if you also use the extension rail that comes with the kit. It would then be an opener for an eight foot door. It would work on a 7 foot door but the motor would be located a foot farther to the back of the garage. It is an entire chain/cable replacement but for an 8 foot door. Call Chamberlain if you need to order a chain/cable for a 7 foot door.
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April 8, 2016
Answer: 
No, this kit just extends the listed models capabilities from 7' to 8', it is not an entire chain.
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Customer Reviews

8 ft. Chain Drive Extension Kit is rated 4.4 out of 5 by 37.
Rated 4 out of 5 by from Why is this not in the store. The parts work fine and are needed for 8' and larger doors. Why is this not available in the store? The added delay of shipping was an issue for me. The drive chain is compleatly replaced. They have you using master links in two places why not keep the cost down by adding only the required length of chain .
Date published: 2016-12-08
Rated 4 out of 5 by from I guess you have no choice but to buy this kit if your door is greater than 7 feet. All it consis... I guess you have no choice but to buy this kit if your door is greater than 7 feet. All it consists of is one extra extension, longer chain and a longer release rope. Doesn't seem much for the $40 sticker price.
Date published: 2017-01-03
Rated 4 out of 5 by from Product works well - On-Line ordering not so much The extensions were easy to integrate into the original opener assembly and appear to work very well. Seems to be a nice opener for the money.
Date published: 2016-09-13
Rated 1 out of 5 by from The Chamberlain garage door opener is good, however dealing with Home Depot with the installation... The Chamberlain garage door opener is good, however dealing with Home Depot with the installation was a nightmare.
Date published: 2016-10-26
Rated 5 out of 5 by from great purchase was easy to install,instructions were very easy to follow,would recommend
Date published: 2016-08-16
Rated 5 out of 5 by from Perfect part This is what needed to extend my garage door opener for an 8ft door.
Date published: 2016-08-16
Rated 5 out of 5 by from Did not need Item was returned because I didn't need it. Great return policy.
Date published: 2016-12-28
Rated 5 out of 5 by from Garage door opener extension Worked great with the opener I picked up at the store.
Date published: 2016-12-20
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