Motor assembly replacement for Genie 18V belt drive and chain drive model garage door openers listed below. 

• Motor Assembly includes: Motor, Optical Encoder with wheel and cover (RPM Sensor), the wiring harness, installation screws, and instruction sheet 
• Genuine Genie replacement part 
• Compatible with models: 1035, 1055, 2036
• Replaces old part number 38644R.S