Genie 37556R.S Belt Bullet Assembly.
Works on Genie Models, Beltlift DC Belt Drive Residential Garage Door Operators.
Compatible with IntelliG 1000, SilentMax 1000 & ChainMax 1000.
Compatible with IntelliG 1200 (4024), SilentMax® 1200 (4042) or ChainMax™ 1200 (4042).
The belt drive bullet assembly is the white piece that holds the belt for the garage door opener together. The carriage assembly for these models also attaches to this bullet assembly allowing it to move the garage door open and closed.