B&D CAD4 Replacement Sprocket Specifications
| Sprocket Shaft Length | 130 mm (approx) |
| Sprocket Weight | 435 grams |
| Sprocket Type | Single Sprocket |
| Manufacturer | B&D Doors Australia |
| Model Number | 041C4220A |
| Hardware Included | Bushings, grease, worm gear |
B&D CAD4 Replacement Sprocket Compatibility
The B&D CAD4 was rebranded under a number of different names and brands, including Easylift, Merlin, Centurian, Firmamatic and more. These all used this Single Sprocket.
Please see below for the full list of motors that are compatible with this replacement sprocket kit.
Firmamatic – 062400/4400EEO, 062196/4400EFM, 062507 & Firmamatic 4400EDBS
B&D Control-a-Door 4 – CAD4 model’s 62196, 062197 , 062198 , 062199, 062200
BM4 – 062103/4400EBLDS
Easylift – 62102/440EBD, 50739 420EBD
Centurion – 062402/4400ECE
Merlin – 50739/420EBD, MT5580, MT5580P
B&D CAD4 Replacement Sprocket Features
The B&D Control-A-Door 4 kit will allow you to be able to engineer a DIY-able fix for when your sprocket breaks. A common reason behind the sprocket breaking is that the smaller cog on the dual sprocket was used, which places immense strain on the unit for the sake of a 1.5 second faster opening speed. This, coupled with a lack of lubrication
A complete installation guide comes with this kit, which will help you replace your old, broken garage door opener part. You will require some basic tools, such as a ladder, screwdriver, socket wrench and assorted sockets.
In the interest of providing our customers a product that will last, Wholesale Garage exclusively offers the single sprocket kit.












Jasmine –
Excellent seller, transaction fast, no problems. Item well packed… The only hiccup – the courier announced delivery on Saturday, delivered Sunday morning (some improvement of communication of the courier to clients is necessary) – however, this has nothing to do with the good service from the seller.
Seamus –
The product was perfectly decribed, delivered very quickly and was fit for purpose. Will buy again from this company.
Brian –
Excellent seller and fast shipping. Product is exactly as described, clear instructions and works perfectly. Very helpful answering related questions. Definitely a keeper
Oliver –
Received as detailed. Thank you – now I can open my garage door once again!!!
Geoffrey –
Highly recommend this seller. Great product & communication. I was able to easily repair my garage door motor with the purchased kit, at a low price, which saved me from having to pay hundreds on a new motor/garage door opener. Thank-you 🙂
Zade –
Fixed the problem really well, good quality parts and the included instructions were easy to follow