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CHAMBERLAIN

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: 254614035

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Details

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

📏8-foot precision rail extension

🔧Complete kit with belt & hardware

⚙️Alloy steel for max durability

Frequently Bought Together

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

CHAMBERLAIN B2401 Smart Quiet Belt Drive Garage Door Opener, Gray

Chamberlain B4603T MYQ Smart Garage Door Opener, Ultra Quiet Belt Drive, 3/4-HP Motor - Quantity 1

Description

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

COMPLETE REPLACEMENT KIT - Includes belt, hardware, and manual—everything you need for a quick, hassle-free install.
PREMIUM ALLOY STEEL BUILD - Experience unmatched strength and longevity with a modern, rust-resistant steel rail system.
BOOST STRUCTURAL INTEGRITY - Reinforce your garage door opener’s framework for enhanced stability and performance.
SEAMLESS 8 FOOT RAIL EXTENSION - Effortlessly upgrade your garage opener with precision-engineered length for taller doors.
OPTIMIZED FOR WHISPER DRIVE PLUS - Perfectly compatible with Chamberlain’s quiet, smooth belt drive openers for whisper-quiet operation.

The Chamberlain G8808CB-P is an 8-foot alloy steel rail extension kit designed for Whisper Drive and Whisper Drive Plus garage door openers. This all-in-one package includes a replacement belt, hardware, and manual, enabling easy installation while enhancing structural integrity and compatibility with doors up to 8 feet tall.

Specifications

Manufacturer	Chamberlain
Part number	G8808CB-P
Item Weight	1.18 Kilograms
Product Dimensions	2.54 x 95.76 x 3.18 cm; 1.18 kg
Item model number	G8808CB-P
Size	8'
Color	Black
Style	Modern
Material	Alloy Steel
Item Package Quantity	1
Specification met	not_applicable
Included components	Hardware, Manual, Rail Extension, Replacement Belt
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

does this work on the B750 model Chamberlain?

Will this fit the chamberlain whisperer model 248739 ?

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

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

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