Description
LiftMaster E-Box Assembly (Q403) | LIF-K74-50278
This is a replacement Electrical Box Assembly. For use with various LiftMaster® Swing and Slide Gate Operators. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility.
Genuine LiftMaster® replacement part.
Also known as
- LiftMaster Q402
- LiftMaster Q403
![0730-301-2CBNC Contact N.C. (Red) [K30-301-2]](https://www.hardwareloft.com/wp-content/uploads/2026/09/liftmaster-07-30-301-2-cbnc-contact-nc-red-k30-301-2-30-301-2__19664.1724088751.386.513.jpg)