Chamberlain 10 ft. Belt Drive Rail Extension Kit-8810CB - The Home Depot


Model # 8810CB

Internet # 202867901

10 ft. Belt Drive Rail Extension Kit

Chamberlain 10 ft. Belt Drive Rail Extension Kit

This item has been discontinued.
The Home Depot no longer carries this specific product.

$77.49 / each


Model # 8810CB

Internet # 202867901

The Chamberlain 10 ft. Belt-Drive Extension Kit is compatible with Chamberlain's Whisper Drive and Whisper Drive Plus belt-drive garage door openers. It some with a rail extension and replacement belt and can be used with garage doors up to 10 ft. high.

  • For use with garage doors up to 10 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

Info & Guides

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Maximum garage door height (ft.)  10  Product Depth (in.)  2.06 
Product Height (in.)  50.31  Product Width (in.)  3.06 
Rail extension length (in.)  144 
Brand/model/year compatibility  2004  Drive System  Belt 
Garage Door Part/Accessory Type  Extension Kits  Product Weight (lb.)  10 lb 
Returnable  90-Day 
Warranty / Certifications
Manufacturer Warranty  1 Year 


Rated 4.1 out of 5 by 15 reviewers.
Rated 4.0 out of 5.0 by Worked like a charm I have a slightly larger than normal garage door, so I bought the 3/4 horse Chamerlain Garage door opener and then realized that with my 9 foot door that I needed an extension kit. Bought this belt drive extension and came in the mail within 7 days. Im not a amazing handyman but this was very easy to install. Reason why I rated as a 4 out of 5 stars was because the price for the kit is too high. when you pay $250 for a garage door opener and then have to spend another $120 for an extension kit, seems like a money grab. other than that, good to go and works great. November 14, 2013
Rated 5.0 out of 5.0 by 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. April 29, 2014
Rated 5.0 out of 5.0 by Now my 10' door opens at a push of a button Love those Chamberlain door openers ,work great and go together easely December 10, 2014
Rated 1.0 out of 5.0 by 10 FT Belt Drive Rail Extension Kit This extension kit does not have the safety tab that would stop the belt carriage from slamming your garage door down if the belt broke or something. When I called the manufacture and received a new one, these too do not have the tab. I am not happy at all. I now still do not have my doors working and the first snow with 20 degree temps has come. November 11, 2014
Rated 2.0 out of 5.0 by Had to modify I just needed the belt not the entire extension kit but the belt only was not offered so I had to buy the entire kit to just get the belt. The belt was too long so we had to modify it to fit. November 11, 2014
Rated 3.0 out of 5.0 by belt drive extension this average product, it has high cost but I needed it October 28, 2014
Rated 5.0 out of 5.0 by 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! August 21, 2013
Rated 4.0 out of 5.0 by Good Product Product is of good quality, assembled easy and works great September 4, 2014
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