Compatible with Chain Drive LiftMaster, Chamberlain Brand, LiftMaster Professional, Access Master and Sears Craftsman garage door openers 1984 thru current. Compatible garage door opener chain drive models 1040, 1045, 1046, 1050, 1055, 1056, 1060, 100WD, 200WD, 300 WD, 1140, 1145, 1146, 1150, 1155, 1156, 1160, 110WD, 210WD, 310WD, 1240, 1245, 1246, 1250, 1255, 1256, 1260, 1260LK, 1245LK, 215WD, 220ED, 315WD, 320WD, 1240R, 1245R, 1246R, 1255R, 1256R, 1265, 985, 2265, 2565, 2245, 2255, 2575, 2595, 140, 150, 240, 350, 450, 550, 700WHC, 701WHC, 1000, 2000, 4000, 4001, 5000, 710WHC, 711WHC, 1100, 2100, 4100, 5100, 7200, 1200, 2200, 4200, 6200, 7220, CG40, PD210, PD610, PD612K, 7420, PD752, PD758S all models may not be listed.