This is a Universal Hardware Replacement Kit. For use with various Chamberlain® Belt Drive Garage Door Openers. Complete kit includes all necessary hardware for rail assembly. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility.
Genuine LiftMaster® replacement part.
Also known as:
41A5257-18, 41A5257-17, 41A5257-19, 041A5257-22, 041A5257-21, 041A5257-20, 041A5257-16, 041A5258-16, 41A5257-9, 041A5257-19, 41A5258-6, 041A5257-18, 41A5257-6, 041A5257-17, 41A5257-5, 041A5257-6, 41A5257-21, 41A5257-1, 41A5257-20, 041A5257-9, 41A5258-16, 41A5257-16, 041A5257-5
