The LiftMaster 41A5021-1M-315 garage door opener circuit board from Garage Door Supply Company is a 315MHz replacement logic board for LiftMaster and Chamberlain garage door operators. The 315 MHz LiftMaster circuit board is compatible with LiftMaster garage door opener models 1345, 1346, 1355 and 1356. This OEM replacement circuit board is compatible with Chamberlain garage door opener models CG40D and CG42D. Compatible LiftMaster remotes are models: 371LM, 372LM, 373LM, 374LM, 370LM, 377LM and 373P.Product Highlights:
This logic board has a PURPLE Learn Button and aPURPLE Antenna Wire.
Only for One Light Openers manufactred 2005-2014