Genie 20456R.S Pulley Support Kit Chain Drive Garage Door Opener PMX IC250 IC/B
The replacement pulley support kit is made to work with compatible Genie chain drive operators.
Compatible with Models: PMX 300 IC/A, PMX 500 IC/A, PMX 300 IC/B, PMX 500 IC/B, IC250, IC250/B
As pictured, the kit includes: Pulley, 5/16 HEX Screw, (2) Square Nuts, Bushing, Bolt retainer, Self-locking bolt, Speed nut, Pulley support, Pulley bracket and instructions
Pulley support goes on the door end of the rail
The chain goes around the pulley for it to stay on track
Genuine Genie replacement part