Get your order today. Same-Day Pick Up* or Delivery** available.

Learn More

SAVE UP TO 60% WITH BLACK FRIDAY.

SHOP NOW
Chamberlain

Chamberlain Belt Drive Extension Kit for 8-ft Garage Doors

#046-0591-4
Chamberlain Belt Drive Extension Kit for 8-ft Garage Doors
$139.99
Buy Online :
Pick up at Leduc, AB
8 In Stock
Get it Today !

Pick up available 09:00 a.m., Dec 04

Quantity updated to 1
New digital payments available on checkout page:
Also Find It in Store:
8 In Stock at Leduc, AB
Aisle 52
Add to Registry

Quebec residents: For information on maintenance and repair click here.

Chamberlain
Chamberlain

Chamberlain Belt Drive Extension Kit for 8-ft Garage Doors

$139.99

Product Details

Upgrade your garage door opener with the Chamberlain Belt Drive Extension Kit, designed for 8-ft doors. This kit includes durable, high-quality components to extend the opener’s reach, ensuring smooth and reliable operation. Easy to install and compatible with most belt drive systems, it’s an essential addition for larger doors. Built for lasting performance, it enhances the functionality of your garage door.

  • Features an easy setup design with a quick-install extension rail and replacement belt

  • Durable construction for a lasting performance

  • Weight: 6 lb

  • Dimensions: 1.25 x 1 x 37.7-in (3.1 x 2.5 x 95.7 cm)

  • Additional assurances: one-year warranty

  • Improves opener functionality for larger, heavier garage doors

  • Reduces strain on the motor for extended opener lifespan

  • Ideal for residential and light commercial garage door applications

  • Helps maintain consistent speed and quiet operation

  • Compatible with chain drive-to-belt drive conversion kits

  • Reinforced belt design resists wear and stretching over time

  • Suitable for single and double car garages with taller doors

Part Number G8808CB-P
Assembled Height (cm) 95.76 cm
Assembled Height (ft) 3.14 ft
Assembled Height (in) 37.70 in
Assembled Length (cm) 3.18 cm
Assembled Length (ft) 0.10 ft
Assembled Length (in) 1.25 in
Assembled Weight (kg) 2.63 kg
Assembled Weight (lb) 5.80 lb
Assembled Width (cm) 2.54 cm
Assembled Width (in) 1.00 in
Assembled Width (mm) 25.40 mm
Colour Black
Garage Door Hardware Type Door Fixture
Number of Pieces 3
Package Depth (cm) 98.00 cm
Package Depth (in) 38.58 in
Package Height (cm) 5.50 cm
Package Height (in) 2.17 in
Package Weight (kg) 2.63 kg
Package Weight (lb) 5.80 lb
Package Width (cm) 8.00 cm
Package Width (in) 3.15 in
Pieces Included Extension Kits
Primary Material Steel
Warranty
  • This product carries a 1 year exchange warranty redeemable at any Canadian Tire store.
Online Ordering
  • Pick Up is free at most stores (some stores require a minimum order value before tax)
  • Shipping fee is based on size and weight of products and distance from address to store
  • Same-Day Delivery costs $9.99 per order
  • Online Ordering Information
Returns
  • Most products can be returned or exchanged at any Canadian Tire store within 90 days of purchase
  • Some products are non-refundable and non-exchangeable
  • The return policy outlined above may not apply to the product you are currently viewing. For complete details and eligibility, please refer to our Return Policy for exceptions.

Compare Similar Products

Only Show Differences
Ratings
Assembled Height (cm)95.76 cm125.65 cm125.65 cm3.81 cm
Assembled Height (ft)3.14 ft4.12 ft4.12 ft0.13 ft
Assembled Height (in)37.70 in49.47 in49.47 in1.50 in

Weekly Deals

Review Highlights

List of Pros Highlights
List of Cons Highlights
Suitable Cons could not be generated at this time.

Reviews

Rating Snapshot

Select a row below to filter reviews.
6 reviews with 5 stars.
5 reviews with 4 stars.
12 reviews with 3 stars.
2 reviews with 2 stars.
3 reviews with 1 star.

Overall Rating

3.3
7 out of 10 (70%) reviewers recommend this product

Review this product

Select to rate the item with 1 star. This action will open submission form.
Select to rate the item with 2 stars. This action will open submission form.
Select to rate the item with 3 stars. This action will open submission form.
Select to rate the item with 4 stars. This action will open submission form.
Select to rate the item with 5 stars. This action will open submission form.
Adding a review will require a valid email for verification

Filter Reviews

  • parking
  • installation
  • purchase
  • price
  • packaging
  • product features
  • setup
  • charging
1 to 5 of 28 Reviews
1 – 5 of 28 Reviews

Help

10 months ago
I have an 7’ high x 10’ wide door. I need an extension for my door to open completely. Will the 8’ extension work for me? Thank you
Helpful?
Response from TheChamberlainTeam:
10 months ago
TheChamberlainTeam
Hello, thank you for your inquiry. The rail that will be included in the box will be enough length for a 7' tall door. No need to extend it to an 8' rail. For further information, feel free to reach us at social@chamberlain.com. Chamberlain-DIY

Great opener.....except

11 months ago
I had a 27 year old opener fail and decided to replace with a new model. Lift Master was the original unit and I chose the Chamerlin Belt Drive. Very quiet and well made. The problem is the unit is for a 7 foot door. It was about 6 hours to remove the old and reinstall the new unit. I had to reposition the bracket to hold the unit. After installed, the realization that the door cannot be fully opened. I remeber 7 foot garage door from homes built in the 50's and 60's. * foot is the most common today, why not market a product that will not cause confusion, frustration and additional expense. So all of the "Atta-boys" for the opener go out the window with the 7 foot realization.
Prosbattery backup, quiet, WiFi Capable

No, I do not recommend this product.

Originally posted on chamberlain.com

Did the job

a year ago
Needed this for install bigger garage doors. Worked well and did the job, just wish there was an option to buy a unit for bigger door that comes with this up front instead of buying a garage door unit and having to buy this as an add on. I ended up throwing out the extension and belt that came with the original unit (used for smaller doors). Just seems like a waste a bit of a money grab. Taking off a star for having to buy seperately.
Helpful?
Response from TheChamberlainTeam:
11 months ago
TheChamberlainTeam
Hello, we appreciate the time you took for rating us. We are sorry to hear that this product didn't meet your expectations. We will be happy to address any issues or questions you have and find a solution for you right away. Feel free to reach our support team at 800-528-9131 M-F, 5am-6pm, PT, and on Saturday 7am-4pm, PT. or email us at social@chamberlain.com. We look forward to resolving your issue. Chamberlain-DIY

Should come with opener kit!

a year ago
Works as it should but should not have to buy just to fit another 1ft of door, much unnecessary cost and wast as other parts are of no use that come with original opener.
Helpful?
Response from TheChamberlainTeam:
a year ago
TheChamberlainTeam
Hi John, thank you for your review. We apologize about the inconvenience; we understand this can be frustrating. The standard door height is 7 ft, and our inventory comes with a 7 ft rail, so if your door is taller than that it must be extended. We apologize about any confusion. Chamberlain-DIY

Chamberlain opener and belt extension

a year ago
Had an experienced installer put this in along with a new Chamberlain opener, all went well but can’t really comment on the install as did not install it. Works very well, quiet also
Helpful?
1 – 5 of 28 Reviews

Questions

1 - 1 of 1 Question

Q: My garage door is exactly 8' 1" tall, but the existing rail is 10' 2". Should I get a 10-ft extension?

4 years ago
3 Answers
  • A: 8 ft rail will be fine if you need the extra inch just leave the stop bolt out.

    4 years ago
    Helpful?
Top