Model # 8808CB

Internet #100431683

Store SKU #294733

Chamberlain 8 ft. Belt-Drive Extension Kit
0012381088089

Chamberlain

8 ft. Belt-Drive Extension Kit

  • Fully open garage doors up to 8 ft. high
  • Quick-install rail system
  • Ultra-quiet Whisper Drive replacement belt
$4799 /each
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Frequently Bought Together

Product Overview

  • Fully open garage doors up to 8 ft. high
  • Quick-install rail system
  • Ultra-quiet Whisper Drive replacement belt
The Chamberlain 8 ft. Belt-Drive Extension Kit is compatible with Chamberlain Whisper Drive and Whisper Drive Plus belt-drive garage door openers. It comes with a rail extension and replacement belt and can be used with garage doors up to 8 ft. high.
  • For use with garage doors up to 8 ft. high
  • Compatible with chamberlain whisper drive and whisper drive plus belt-drive models
  • Kit includes rail extension and replacement belt
  • Comes ready to install with complete instructions
  • Note: product may vary by store

Product Overview

  • Fully open garage doors up to 8 ft. high
  • Quick-install rail system
  • Ultra-quiet Whisper Drive replacement belt
Model #: 8808CB
Sku #: 294733
Internet #: 100431683

The Chamberlain 8 ft. Belt-Drive Extension Kit is compatible with Chamberlain Whisper Drive and Whisper Drive Plus belt-drive garage door openers. It comes with a rail extension and replacement belt and can be used with garage doors up to 8 ft. high.

California residents: see   Proposition 65 information

  • For use with garage doors up to 8 ft. high
  • Compatible with chamberlain whisper drive and whisper drive plus belt-drive models
  • Kit includes rail extension and replacement belt
  • Comes ready to install with complete instructions
  • Note: product may vary by store

Info & Guides

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Ratings (34) (71) (11) (1)
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Specifications

Dimensions

Maximum garage door height (ft.)
8

Details

Brand/model/year compatibility
1993 and newer
Garage Door Part/Accessory Type
Garage Door Opener Extension Kit
Returnable
90-Day

Warranty / Certifications

Manufacturer Warranty
1 year

Specifications

Dimensions

Maximum garage door height (ft.)
8

Details

Brand/model/year compatibility
1993 and newer
Garage Door Part/Accessory Type
Garage Door Opener Extension Kit
Returnable
90-Day

Warranty / Certifications

Manufacturer Warranty
1 year

Questions & Answers

how the the extension works? very confused~

We are thinking about replacing the the garage opener, we really like the Model # HD950WF but we are not too sure if we need the extension kit. If so, what size are we to get? Our garage door is 7 feet high, but looking at the current opener, the rail that connects to the opener is like 9 feet long. so how does this work? thanks for helping out~
Asked by: Confused
If your door is 7' high, you will not need the extension. I had the same question, so I bought the extension just in case. My opener raises the door above the 7' height without using the extension I bought. I was pleased by how easy the opener is to set the travel, and it allowed me to set the up and down positions for further travel than did my old opener.
Answered by: Eng
Date published: 2017-01-04

Do the extension kits act as a replacement for a broken belt?

Belt snapped on my whisper drive by chamberlain.
Asked by: Gb
No. It is a longer belt than the one supplied with a 7' opener.
Answered by: Eng
Date published: 2017-01-04

Does this extension work on Chamberlain's WD962EV model?

Asked by: Trucker54
Yes, I believe this extension kit would be compatible with the WD962EV.
Answered by: p07r0457
Date published: 2015-09-20

my belt broke on my chamberlain model #248739 it a 8 foot opener

Asked by: ralph
Sorry to hear that. This extension kit includes a new belt, so you could use it to replace your broken belt. However, you wouldn't need the other parts included in the kit. You could also contact Chamberlain directly, or a third-party garage door installer/vendor to see if you can purchase only the belt.
Answered by: p07r0457
Date published: 2015-09-20
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Customer Reviews

8 ft. Belt-Drive Extension Kit is rated 4.5 out of 5 by 71.
Rated 4 out of 5 by from Works great but ...Chamberlain will take financial advantage of you Kit works perfectly and installs seemlessly. Here is the problem. Chamberlain for some reason does not package an 8' edition of the belt drive opener. So one must purchase this extension kit. After completion, you are left with a bunch of leftover duplicate parts from garage opener purchase, inclusiive of a 6' belt, that you will never use. Chamberlain should offer a return program with this extension kit for some sort of credit for the unused duplicate parts.
Date published: 2017-06-27
Rated 1 out of 5 by from I think it is ridiculous that the company charges the equivalent of an additional 25% of the cost... I think it is ridiculous that the company charges the equivalent of an additional 25% of the cost of a standard opener to extend the opening of the door 1 foot. This is what they charge for a 1 foot piece of steel and a belt. The company is gouging you for an extra 1 foot of steel and belt. Greedy "C Suite!" Outrageous!
Date published: 2017-10-18
Rated 5 out of 5 by from Best garage door opener EVER! Love this opener. It is so quiet and so reliable, especially when compared to the one I was replacing that only worked half the time. The remote is very sensitive. I can press it a couple houses away and it still works. Love the feature that I can open and close it with my phone and can give my log in to any family members who needs to get into my house and they don't have to worry about keys or remotes. Keypad works awesome as well. The only thing I haven't figured out how to do that I read about is having the door close after being open for a predetermined amount of time. I can set it to close at a certain time of day but not when it has been open for 30', for instance. Overall, I love, love this opener. Highly recommend. I think the price was very reasonable and I think HD did a great job installing it. When I had spoken with a private garage door company owner, he wanted to charge me over $1000! to replace and install my former system. With this system, I was all in for less than $400! Some of the best money I ever spent
Date published: 2017-08-08
Rated 5 out of 5 by from Worked as expected. Was very easy to install since this was the third one I have installed in the... Worked as expected. Was very easy to install since this was the third one I have installed in the past couple of years, but with that said, the instructions are very easy to follow.
Date published: 2017-05-16
Rated 5 out of 5 by from Easy to install and instructions were clear made one of... Easy to install and instructions were clear made one of the easiest parts of the garage door change out we encountered.
Date published: 2017-08-01
Rated 5 out of 5 by from Worked perfect This is a must for an 8 foot door. It's the exact product for this garage door opener.
Date published: 2017-06-13
Rated 5 out of 5 by from Just right Bought 7' garage door opener and a extension kit for a 8 ' door. Fit just right
Date published: 2017-06-20
Rated 5 out of 5 by from Worked great. Just want I needed to get my garage... Worked great. Just want I needed to get my garage opener installed.
Date published: 2017-10-10
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