Description
LiftMaster Interlock Switch Kit N4 | LIF-K74-19987-N
LiftMaster Interlock Switch Kit N4 | LIF-K74-19987-N
This is a replacement Interlock Switch Kit, N4. Compatible with LiftMaster® Model J Commercial Door Operators; manufactured after 2005. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility.
Genuine LiftMaster® replacement part.