$18.95. Sometimes the coupler wears out, and the motor will turn, but the screw doesn't turn. To inspect and replace that part, remove the … On Genie's "clutchless" openers, there is a small plastic coupler that connects the screw assembly to the main power head. Genie Screw Drive Coupler 30257T 4.7 out of 5 stars 525. On most Genie screw drive openers, the motor shaft is connected to the rail screw with a coupler. Find the Genuine Genie replacement parts to get your screw drive model garage door opener back up and running quickly. Genie 36179R.S Garage Door Opener Trolley Assembly Genuine Original Equipment Manufacturer (OEM) Part 4.7 out of 5 stars 963. As a result, the door does not open nor close. This allows the motor to turn the screw, which moves the trolley to open and close the garage door. $5.99. Technical diagram of replacement parts for Genie model PowerLift® 900 (2562), GPower™ 900 (2568), DuraDrive, DuraDrive900, EnduraDrive, and (2564) garage door openers. Easy DIY replacement.