This Genie chain drive bullet assembly is the white piece that holds the chain for the garage door opener together.
Works with chain model Genie garage door openers that have a C-Channel rail.
The chain carriage assembly for these models also attaches to this chain bullet assembly allowing it to move the garage door open and closed up and down the rail.
Assembly contains: The 2 Bullet side white pieces and the four screws to install it
Compatible with Genie models that have a chain rail: 1028 2028 3020H 3020H-B 3024 4024 3022 3042 3120H 3120H-B 4022 4042 4124 4164 (ChainMax ReliaG IntellG and TriloG series with these model numbers)
The Heddolf 0220-1KB-390 is compatible with the following pre-1996 garage door openers that use the 390MHz version remote:
Touch' N Go 45 45A 45B 45C 55 55A 55B 55C 65 65A 65B 65C 450 450A 451 455 456 550 551 555 556 650 656 100 100SS 1000 1000A 1055 1056.