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

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents.  Download a free copy from the Adobe Web site.

Compare Similar

Price
$30.77 /each
$43.07 /each
$47.99 /each
$61.62 /each
Name 8 ft. Chain Drive Extension Kit 10 ft. Chain Drive Rail Extension Kit 8 ft. Belt-Drive Extension Kit 10 ft. Belt Drive Rail Extension Kit
Brand Chamberlain Chamberlain Chamberlain Chamberlain
Ratings (43) (25) (56) (34)
View Product View Product View Product View Product

Specifications

Dimensions

Details

Warranty / Certifications

More Products With These Features

Search

Customer Questions & Answers

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

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.
Asked by: Anonymous
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
Answered by: texan
Date published: 2015-11-05

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

The HD220 is a new GD opener being stocked in stores. Does this extension work with it?
Asked by: millworkDH
IT SAYS IT WON'T IN ABOVE PARAGRAPH....DXD
Answered by: DXD205
Date published: 2015-10-23

Is the 8 foot extension in regards to the height of the door or how high it is off the ground when opened up?

Asked by: Jrock8788
The full 8' opening. Even the manual door lift handle is out of the way.
Answered by: desoto
Date published: 2017-04-11

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

Asked by: tabo
Hello Tabo - Yes, this extension rail will work with your Craftsman garage door opener.
Answered by: TheChamberlainTeam
Date published: 2016-08-02
  • y_2017, m_4, d_23, h_23CST
  • bvseo_bulk, prod_bvqa, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_25
  • loc_, sid_100431682, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=BEST_ANSWER_FEEDBACK_COUNT, direction=DESCENDING), SortEntry(order=POSITIVE_ANSWER_FEEDBACK_COUNT, direction=DESCENDING), SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 22ms
  • QUESTIONS, PRODUCT

Customer Reviews

8 ft. Chain Drive Extension Kit is rated 4.3 out of 5 by 43.
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 1 out of 5 by from Product specifications say it will work on ALL Chamberlain chain drives. After 1 hour on phone wi... Product specifications say it will work on ALL Chamberlain chain drives. After 1 hour on phone with Tech support I was told it would not work on Chamberlain PD 222 opener. Chamberlain Tech support was terrible. They do not know their products. The new chain was about a foot to long and they gave me instructions on how to shorten it. I have the skills and tools to do this, but I thought they could just give me the right chain in the first place.
Date published: 2017-03-27
Rated 5 out of 5 by from This kit came with everything needed including specific instructions for an existing installation... This kit came with everything needed including specific instructions for an existing installation or a new installation. I am very pleased with the purchase.
Date published: 2017-04-11
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 4 out of 5 by from I was impressed by it's satin finish,it is just what... I was impressed by it's satin finish,it is just what I needed to to complete my garage decor.
Date published: 2017-03-28
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 The extension kit worked great and the price is reasonable... The extension kit worked great and the price is reasonable
Date published: 2017-03-14
  • y_2017, m_4, d_24, h_4
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_43
  • loc_, sid_100431682, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 105ms
  • REVIEWS, PRODUCT