CHAMBERLAIN G8808CB-P 8808CB 8-Foot Garage Door Opener Kit, Compatible Whisper Drive Plus Models, Includes Rail Extension and Replacement Belt Ft, Black

Q: does this work on the B750 model Chamberlain?

Yes, this would be the appropriate rail extension kit for your Chamberlain B750 opener.

Q: Will this fit the chamberlain whisperer model 248739 ?

According to Chamberlain's web site, yes. Search for "chamberlain "248739"", you should find a downloadable parts manual; "8808CB 8 Foot (2.4 m) Rail extension kit" is listed for Models WD822KD • WD832KD • 248739, page 37.

Q: I have a 12 x 16 foot door. Do I need to purchase an extension kit? If so, which one?

You will definitely need an extension kit. The opener is designed for a standard 7ft. door and therefore the rail (and belt on it) is only long enough to raise a door 7ft. I have an 8ft door and only bought the extension for the additional 1 ft. You should probably contact Chamberlain to see if they offer an extension for a 12ft door. It might require a different type of opener.

Q: Do I need to purchase the extension kit for the garage door opener to work?

You have to purchase extension if door is 8 foot tall or it will not work.

Product ID: 53165679

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Details

Brand
CHAMBERLAIN
Colour
Black
Material
Alloy Steel
Style
Modern
Item weight
2.6 Pounds

📏8-foot rail extension

🖤Sleek black alloy steel

🛠️Includes all hardware & belt

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Description

🚪 Elevate your garage game with silent strength and sleek style!

WHISPER QUIET OPERATION - Compatible with Whisper Drive Plus models for smooth, noise-free garage access.
COMPLETE INSTALLATION KIT - Everything you need—replacement belt, rail extension, and hardware—in one streamlined package.
MODERN MATTE BLACK FINISH - Sleek design that complements any contemporary garage aesthetic.
ROBUST STRUCTURAL STEEL BUILD - Engineered for enhanced durability and long-lasting performance under daily use.
SEAMLESS 8 FOOT RAIL EXTENSION - Effortlessly upgrade your garage door opener for taller doors up to 8 feet high.

The Chamberlain G8808CB-P is an 8-foot structural steel rail extension kit designed for Whisper Drive and Whisper Drive Plus garage door openers. It includes a replacement belt and all necessary hardware, enabling easy installation and compatibility with garage doors up to 8 feet tall. Finished in modern black alloy steel, it enhances both the durability and aesthetic of your garage system.

Specifications

Manufacturer	Chamberlain
Part Number	G8808CB-P
Product Dimensions	2.54 x 95.76 x 3.18 cm; 1.18 kg
Item model number	G8808CB-P
Colour	Black
Style	Modern
Material	Alloy Steel
Item Package Quantity	1
Certification	not_applicable
Included Components	Hardware, Manual, Rail Extension, Replacement Belt
Batteries included?	No
Batteries Required?	No
Item Weight	1.18 kg