--- product_id: 4052526 title: "G8808CB-P Chamberlain 8808CB 8-Foot, Compatible Whisper Drive Plus Models, Includes Replacement Belt Garage Door Opener 8 Ft Rail Extension Kit" brand: "chamberlain" price: "108990CFA" currency: XOF in_stock: true reviews_count: 13 category: "Chamberlain" url: https://www.desertcart.sn/products/4052526-g8808cb-p-chamberlain-8808cb-8-foot-compatible-whisper-drive-plus store_origin: SN region: Senegal --- # 8-foot steel rail extension Complete hardware & replacement belt Whisper-quiet belt drive compatible G8808CB-P Chamberlain 8808CB 8-Foot, Compatible Whisper Drive Plus Models, Includes Replacement Belt Garage Door Opener 8 Ft Rail Extension Kit **Brand:** chamberlain **Price:** 108990CFA **Availability:** ✅ In Stock ## Summary > 🚪 Elevate your garage game with silent strength and effortless style! ## Quick Answers - **What is this?** G8808CB-P Chamberlain 8808CB 8-Foot, Compatible Whisper Drive Plus Models, Includes Replacement Belt Garage Door Opener 8 Ft Rail Extension Kit by chamberlain - **How much does it cost?** 108990CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/4052526-g8808cb-p-chamberlain-8808cb-8-foot-compatible-whisper-drive-plus) ## Best For - chamberlain enthusiasts ## Why This Product - Trusted chamberlain brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Whisper-Quiet Operation:** Compatible with Chamberlain’s Whisper Drive Plus for silent, smooth performance. - • **Seamless 8-Foot Extension:** Perfectly engineered to fit your taller garage doors with ease. - • **Trusted Brand Reliability:** Backed by Chamberlain’s 1-year warranty and top-rated customer satisfaction. - • **Robust Structural Steel Rail:** Enhances durability and long-term stability for your opener system. - • **All-Inclusive Installation Kit:** Includes replacement belt and hardware for a hassle-free DIY upgrade. ## Overview The Chamberlain G8808CB-P is an 8-foot steel rail extension kit designed for Chamberlain Whisper Drive and Whisper Drive Plus belt drive garage door openers. It includes a replacement belt and all necessary hardware, enabling easy installation for garage doors up to 8 feet high. Engineered for durability and silent operation, this kit enhances structural integrity and ensures smooth, quiet performance backed by a 1-year warranty. ## Description Product Description For use with Chamberlain Whisper Drive and Whisper Drive Plus belt drive garage door openers featuring the quick install rail system. From the Manufacturer 8-foot belt drive extension kit. Review: Required for an 8ft door install - This worked perfect on a new install. I knew I had an 8ft door. The factory rail kit works for shorter doors. Simply replace the one end of the track with the one included in this kit. I was able to install everything by myself. Review: Works fine, but why didn't you just include this to begin with. - I'm basing this review on the product itself, and not on my opinion that Chamberlain should include this standard in all their belt-driven garage door openers. The product is pretty straight forward. If you have an 8-foot garage door, you need this extension kit. Otherwise, the standard kit will not be long enough for your door to traverse the necessary length to fully open the door. The product itself is of the same grade and quality as the supplied rail and belt within your new garage door opener kit. The only thing you're really doing is substituting the the original front rail section with this front rail section. It's the same exact part, only longer. In addition, this kit includes a longer belt to now accommodate the overall longer rail. They also throw in a couple extra parts which I found I did not require, e.g., a longer rope for the emergency release handle, and an extra support bar to provide greater stability for the motor mount. The install was very easy as this kit required no further effort than what is required to perform the original install. Once again, this just replaces parts in your new garage door opener. Yet again, begging the question, why not include these parts in the original box? I get the extra cost associated with including both rail headers and belts, but for a major manufacturer it's pennies on the dollar. ## Features - The product is 8', new structural steel rail extension kit - Easy and simple use kit - The product is manufactured in China - Works on garage doors up to 8 feet high - Includes rail extension, replacement belt, and all necessary hardware - New structural steel rail system - Increases structural integrity ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000VL9TBY | | Best Sellers Rank | #26,103 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #11 in Garage Door Opener System Parts | | Brand Name | CHAMBERLAIN | | Color | Black | | Customer Reviews | 4.6 4.6 out of 5 stars (1,779) | | Global Trade Identification Number | 00012381180028 | | Included Components | Hardware, Manual, Rail Extension, Replacement Belt | | Item Type Name | Garage Door Opener 8 Ft Rail Extension Kit | | Item Weight | 2.6 Pounds | | Manufacturer | Chamberlain | | Manufacturer Warranty Description | 1 Year | | Material Type | steel | | Required Assembly | Yes | | Style Name | Modern | | UPC | 012381180028 012381088089 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** CHAMBERLAIN - **Color:** Black - **Item Weight:** 2.6 Pounds - **Material:** steel - **Style:** Modern ## Images ![G8808CB-P Chamberlain 8808CB 8-Foot, Compatible Whisper Drive Plus Models, Includes Replacement Belt Garage Door Opener 8 Ft Rail Extension Kit - Image 1](https://m.media-amazon.com/images/I/51JhMr6LtyL.jpg) ![G8808CB-P Chamberlain 8808CB 8-Foot, Compatible Whisper Drive Plus Models, Includes Replacement Belt Garage Door Opener 8 Ft Rail Extension Kit - Image 2](https://m.media-amazon.com/images/I/51IxEN4PslL.jpg) ![G8808CB-P Chamberlain 8808CB 8-Foot, Compatible Whisper Drive Plus Models, Includes Replacement Belt Garage Door Opener 8 Ft Rail Extension Kit - Image 3](https://m.media-amazon.com/images/I/616ZTiqRRKL.jpg) ![G8808CB-P Chamberlain 8808CB 8-Foot, Compatible Whisper Drive Plus Models, Includes Replacement Belt Garage Door Opener 8 Ft Rail Extension Kit - Image 4](https://m.media-amazon.com/images/I/71lcO9hiS0L.jpg) ![G8808CB-P Chamberlain 8808CB 8-Foot, Compatible Whisper Drive Plus Models, Includes Replacement Belt Garage Door Opener 8 Ft Rail Extension Kit - Image 5](https://m.media-amazon.com/images/I/61IcjHs4fQL.jpg) ## Questions & Answers **Q: does this work on the B750 model Chamberlain?** A: Yes, this would be the appropriate rail extension kit for your Chamberlain B750 opener. **Q: Will this fit the chamberlain whisperer model 248739 ?** A: 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?** A: 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?** A: You have to purchase extension if door is 8 foot tall or it will not work. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Required for an 8ft door install *by A***N on January 12, 2026* This worked perfect on a new install. I knew I had an 8ft door. The factory rail kit works for shorter doors. Simply replace the one end of the track with the one included in this kit. I was able to install everything by myself. ### ⭐⭐⭐⭐⭐ Works fine, but why didn't you just include this to begin with. *by L***E on August 8, 2014* I'm basing this review on the product itself, and not on my opinion that Chamberlain should include this standard in all their belt-driven garage door openers. The product is pretty straight forward. If you have an 8-foot garage door, you need this extension kit. Otherwise, the standard kit will not be long enough for your door to traverse the necessary length to fully open the door. The product itself is of the same grade and quality as the supplied rail and belt within your new garage door opener kit. The only thing you're really doing is substituting the the original front rail section with this front rail section. It's the same exact part, only longer. In addition, this kit includes a longer belt to now accommodate the overall longer rail. They also throw in a couple extra parts which I found I did not require, e.g., a longer rope for the emergency release handle, and an extra support bar to provide greater stability for the motor mount. The install was very easy as this kit required no further effort than what is required to perform the original install. Once again, this just replaces parts in your new garage door opener. Yet again, begging the question, why not include these parts in the original box? I get the extra cost associated with including both rail headers and belts, but for a major manufacturer it's pennies on the dollar. ### ⭐⭐⭐⭐⭐ Excellent improvements from 7 foot to 8 foot. *by R***L on March 17, 2026* Excellent product and great value. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/4052526-g8808cb-p-chamberlain-8808cb-8-foot-compatible-whisper-drive-plus](https://www.desertcart.sn/products/4052526-g8808cb-p-chamberlain-8808cb-8-foot-compatible-whisper-drive-plus) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-05-19*