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Screw Drive Coupler Assembly - 36645R.S

Screw Drive Coupler Assembly - 36645R.S

Regular price $6.82 USD
Regular price Sale price $6.82 USD
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The coupler assembly connects the garage door opener motor to the screw drive rail assembly. If the motor on your garage door opener is running, but the screw is not turning, it is most likely time to replace the screw drive coupler with this replacement. If you glance up at the rail when you press the garage door opener button, you will be able to hear the motor run and see if the screw that is inside the rail is turning. 

  • The coupler is designed to protect the screw drive and motor from wear and tear
  • Genuine Genie replacement part 
  • Compatible with Models 2562, 2564, 2568, 3062, 3064, 4062, 4064, Powerlift 900, GPower 900, PowerMax 1200, TriloG 1200, Excelerator 1000, Excelerator II, PowerMax 1500, MachForce, MachForce Connect, TriloG 1500

SKU: 36645R.S

In Stock! Usually ships within 24 hours.

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Screw Drive Coupler Assembly ,  Service Parts - The Genie Company
Screw Drive Coupler Assembly - 36645R.S


Ask a Question
  • Will this coupler fit model 3060 36645RS

    No, Genie model 3060 requires the coupler 30257T.S.

  • Will this fit a Genie GX9000? I can’t find ANY information on this model

    No, the Genie model GX9000 does not have a coupler assembly, instead it uses a clutch.  Can you verify that your motor is running but the screw is not turning?  If so you can try disengaging the door with the door closed.  Then hold a flat headed screwdriver in the back of the motor head screw slot and turn the white clutch nut with a wrench to the right, start with a half of a turn.  Re-engage and retry the operation, if it helps you can repeat as needed. Please let us know if you need further help.

  • will this work on ISO 995??

    No, for an ISD995 you would need coupler part number 30257T.S.

  • My Old Coupler Came Out Of A Model ISL 950 A . I Bought This Coupler Hoping It Would Work . Will It Work On My Old Unit

    Sorry no, the 36645R.S is not compatible with your model ISL950A.  You need coupler part 30257T.S.

    Thank you,

  • Will this work on a model number G4050CL? The coupler looks the same

    No, it will not.

  • W I'll the 364 5th coupler work on s genie pto screw drive cm7600

    No, it will not. The CM7600 would use the 30257T.S coupler.

  • Do you have to grease the coupler

    No, you do not.

  • Is this the right coupler for a Model 2560/M ?

    Hello. No, this is not the correct coupler. You would need the 30257T.S couple to use with your Genie model 2560 garage door opener.

  • does part fit Power Lift 900?

    Yes, the Screw Drive Coupler Assembly - 36645R.S is compatible with a Genie Power Lift 900.

  • Will this coupler fit a ISL950/A?

    No, you would need the Coupler 30257T.S for Genie model ISL950/A.

36645R.S Coupler Replacement 

Note: This repair will require removal of the unit from it's mounting hardware and repairs made on a bench or floor. Refer to your Owners manual and or installation poster for proper assembly and carefully read and understand all warnings and cautions pertaining to your model garage door opener. 

Warning: Be sure electrical power has been disconnected from the input power lines prior to removing the motor cover of the garage door opener. 

Warning: Any and all repairs made to this unit must be performed with the garage door disconnected from the garage door opener and with the garage door in the closed position. 

1. Pull the Emergency release cord on the carriage to disengage the garage door opener if necessary. (If you are unable to lower the garage door using the garage door opener, use Extreme Caution manually closing the door. ) 

2. Unplug the power cord from the power receptacle. 

3. Open lens cover by pressing the middle tab inward and remove the light bulbs. (FIGURE 1) 

36645R.S Genie garage door opener coupler replacement removing the light bulbs

4. Remove the wall console and Safe-T-Beam wires from the terminal block located on side of opener (FIGURE 2). Use a small common screwdriver to press in on orange tabs while gently pulling wires from the block. Mark wires to help facilitate replacement. 

Genie garage door opener 36645R.S coupler replacement instructions

5. Remove network and battery backup harnesses from the front of opener (if applicable). 

6. Remove the cotter pin & clevis from the door arm to separate door from the opener. (FIGURE 3). 

Replacing the coupler part 36645R.S on a Genie screw drive model garage door opener

7. Remove motor head and rail assembly from mounting brackets and set on a clean work surface or the floor. 

Note: Be aware of the motion detector bulb on the bottom of the power head cover (on certain models). Do not set operator weight on this bulb. (FIGURE 2). 

8. Remove the 6-7/16" self-tapping bolts from the rail/ motor mounting straps and pull rail from Motorhead. (FIGURE 4). 

Genie screw drive coupler replacement instructions, part 36645R.S

9. Install rail to motorhead assembly using the 36645R.S replacement coupler, mounting flange, and 6-7/16" self-tapping screws. (FIGURE 3). 

Note: Motor shaft & rail shafts are different sizes. The coupler must be installed in the correct direction or the rail will not assemble to the motor shaft. 

10. Reinstall the garage door opener assembly in reverse order as removed. Reference your owners manual or installation poster if needed. 

11. Install Wall console and Safe-T-Beam wires back into the terminal block. Install battery backup and or network harness if applicable. 

12. Install light bulbs and close lens cover. 

13. Plug the garage door opener in. 

14. Reprogram the limits controls per owners manual. 

Ref: Screw Drive Owners manual

Ref: Screw Drive Installation poster

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