This header bracket mounts to the wall above the garage door, to attach the garage door opener rail securely to the wall. The 35421A.S header bracket was used with many Genie residential Screw Drive and Chainglide model garage door openers. This header bracket replaces header brackets that are visually similar and visually different in appearance, see model descriptions below for compatibility details. Easily replace existing header bracket with this one Comes with bracket only Compatible with Genie Models:  1060, 1560, 2560, 3560, 3860, IS525, IS525/B, IS550, IS550/B, IS850, IS900, IS900/B, IS920, CM7600, CM8600, PRO95, CM8600-FN, CMD9900, H4000, H6000, H8000, IS525, IS525/B, IS550, IS550/B, IS850, IS900, IS900/B, IS920, ISD990, ISD995, ISD1000, 2060L, 3060L, IMS1000, ISL950, ISL950/B, ISL980, ISL980/B,  PRO99-IC, PRO99FN, 4560, G4050CL, G5000CL, G5050CL, G5500CL, G5700CL, G8000CL, GX9000CL, GXL9500CL, GXL9550CL, GXL9900CL, GXL1000CL, GCG350, PCG400, PCG600, GCG350L, PCG450, PCG650, GCG350ML, PCG500ML, PCG700ML, H2000C, 2020CT, 1020L, 2020L Lag bolts sold separately as part number 8091B04.S
