The Genie Genie 37559R.S is a genuine OEM Chain Drive Sprocket Assembly. Replacement chain drive sprocket assembly mounted on power head shaft. Compatible with select Genie garage door opener models including Genie 1028, Genie 2028, Genie 1128 and others. Always disconnect power before installation and reprogram the opener as needed after replacement.
A: The sprocket mounts on the shaft on top of the power head unit, and the drive chain wraps around it to transmit motion along the rail.
A: It is compatible with Genie models 1028, 2028, 1128, 2128, 3020H, 3020H-B, 3022, 3024, 4022, 4024, ChainMax 1000, ReliaG 650, and ReliaG 850.
A: No. The GE-37559R.S is designed for chain-drive openers only. For belt-drive openers such as the 7155L, use part number 39278R.S instead.
A: The sprocket wears over time due to constant chain contact. Replacing it restores proper chain engagement and prevents chain skipping or slipping.
A: No alternate or superseded part numbers have been identified for the GE-37559R.S in available research.
