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

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: 4052526

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Details

Brand
CHAMBERLAIN
Color
Black
Material
steel
Style
Modern
Item Weight
2.6 Pounds

📏8-foot steel rail extension

🔧Includes replacement belt & hardware

🛠️Boosts structural integrity

Description

🚪 Elevate your garage game with the ultimate 8-foot extension kit!

COMPLETE UPGRADE KIT - Everything you need—replacement belt, hardware, and manual—in one sleek package.
ENHANCED DOOR SUPPORT - Supports garage doors up to 8 feet high, ensuring smooth, reliable operation every time.
EFFORTLESS COMPATIBILITY - Specifically crafted for Chamberlain Whisper Drive & Whisper Drive Plus models for quick install.
SEAMLESS 8 FOOT EXTENSION - Expand your garage door opener reach with precision-engineered steel rails.
DURABLE STEEL CONSTRUCTION - Modern, heavy-duty steel rail system designed for lasting strength and stability.

The Chamberlain G8808CB-P is a premium 8-foot steel rail extension kit designed for Whisper Drive and Whisper Drive Plus garage door openers. It includes a replacement belt and all necessary hardware, enhancing structural integrity and supporting doors up to 8 feet high. Engineered for easy installation and durability, this kit ensures your garage door operates smoothly and reliably.

Specifications

Brand	CHAMBERLAIN
Color	Black
Material	steel
Style	Modern
Item Weight	2.6 Pounds
Assembly Required	Yes
UPC	012381180028 012381088089
Global Trade Identification Number	00012381180028
Manufacturer	Chamberlain
Part Number	G8808CB-P
Item Weight	2.6 pounds
Product Dimensions	1 x 37.7 x 1.25 inches
Item model number	G8808CB-P
Is Discontinued By Manufacturer	No
Item Package Quantity	1
Certification	not_applicable
Included Components	Hardware, Manual, Rail Extension, Replacement Belt
Batteries Included?	No
Batteries Required?	No
Warranty Description	1 Year