Compatible Models: Fit for LiftMaster and Chamberlain, Replace 41B3869-1 41B3869-3 Complete Trolley Assembly, Black Intelligent Safety Protection: It has an obstacle stop function. When the garage door encounters an obstacle, it automatically stops, effectively preventing accidents and ensuring family safety Precise Alignment: The unique design keeps the garage door precisely aligned on the track, avoiding wear and damage during operation, and significantly extending the service life of the garage door Widely Compatible: Fit for LiftMaster Chamberlain belt drive garage door opener 1270, 1280, 1280R.2280. 2580, 2500, 2500B, 2500D, 2585, 8100, 8100M, 8200, 9200, WD822K, WD922K, WD912K, WD912KS, WD822KS, fit for LiftMaster and Chamberlain Brand garage door openers 1984 thru current, replace 41B3869-1 41B3869-3 041B3869-3A 41B3869-1 41B3869-3 41B3869 41B3869-3A Complete Trolley Durable Material: Made of high-strength alloy steel, it is wear-resistant and corrosion-resistant, ensuring that the product maintains stable performance in long-term use and reducing maintenance costs

Compatible Models:

Fit for LiftMaster and Chamberlain brand garage door openers compatible from 1984 to present

Fit for 1270 1280 1280R 2280 258025002500B 2500D 25858100810M 82009200 WD822K WD922K WD912K WD912KS WD822KS (all models may not be listed)

Replacement Part Number:

Replace 041B3869-3A 41B3869-1 41B3869-3 41B3869 41B3869-3A

Improved Performance:

Make your garage door opener run smoother, quieter and safer.

Extended Life:

Reduce wear and damage, lower maintenance costs.

Easy To Install:

No specialist tools required, easy replacement.

Color:

Black

Products Include:

Complete handcart component * 1

Including door opener, tensioner, chain connection buckle, screw pin buckle