Will this replace 4m board

Yes it will. Per Liftmaster's website the 41A5021-1M-315 should replace the 41A5021-4M-315. https://www.liftmaster.com

41a3066 does it work with this model?

Only if it has a purple learn button!

Is this one capable with lift master 1245lm door opener?

I went to liftmaster we sight to check compatibility, sorry do not know exact fitments

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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LiftMaster Receiver Logic Control Board 41A5021-1M-315 Chamberlain LiftMaster, Black

Product ID: 26738179

Details

Brand
Hengulus
Color
Black
Compatible Devices
Garage Door
Max Number of Supported Devices
1
Special Feature
Lightweight

⚡120V Power

📏10.9x7x3.3 in

⚖️1.26 lbs Weight

Description

🔑 Unlock Your Garage's Potential!

🖤 SLEEK DESIGN - Stylish black finish that complements any garage aesthetic.
🔋 ENERGY EFFICIENT - Operates at just 6 watts, saving you on energy costs.
🔒 RELIABLE PERFORMANCE - Designed for consistent and dependable garage door operation.
🔧 SEAMLESS REPLACEMENT - Easily replace your old board with this compatible model.
🛠️ USER FRIENDLY INSTALLATION - Quick and straightforward setup for hassle-free use.

The LiftMaster Receiver Logic Control Board 41A5021-1M-315 is a high-quality replacement part designed for seamless compatibility with your garage door opener. Weighing just 1.26 pounds and featuring a sleek black finish, this board operates efficiently at 120 volts and 6 watts, ensuring reliable performance and energy savings. Perfect for DIY enthusiasts, it offers a user-friendly installation process, making it an essential upgrade for any modern garage.

Specifications

ASIN	B006LOWY1M
Additional Features	Lightweight
Brand	Opalbeautyx
Button Quantity	1
Color	Black
Compatible Devices	Garage Door
Connectivity Technology	Radio Frequency
Controller Type	Button Control
Customer Reviews	4.7 out of 5 stars 745 Reviews
Item Weight	1.3 pounds
Manufacturer	The Chamberlain Group
Max Number of Supported Devices	1
Maximum Number of Supported Devices	1
Mfr Part Number	41A5021-1M-315
Model Name	LiftMaster Receiver Logic Control Board
Model Number	41A5021-1M-315
Number of Items	1
Special Feature	Lightweight
UPC	640213242981
Unit Count	1 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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