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You are here:Home > Liftmaster Parts > Screw Drive Models: 1000SD, 1000SDR, 2000SD, 2000SDR

Parts fit Screw Drive Models: 1000SD, 1000SDR, 2000SD, 2000SDR

Rail Assembly Parts: <Click Here>

Safety Sensors: <Click Here>

Logic Boards: <Click Here>

Help Finding Opener Model #: <Click Here>

Item Part Number



Not Shown 990LM Liftmaster 990LM Surge Protector. Protects any garage door opener from harmful power surges. Door opener circuit boards and other components are frequently damaged by power surges caused by lightening storms. This surge protector has special terminals (colored connectors on bottom - see photo) that connect to, and protect, the Safety Sensors and the wall control station (only used with Liftmaster or Chamberlain openers manufactured after 1994).


Not Shown 25C20 Liftmaster 25C20 Drive Coupler. Connects the motor output shaft to the screw that moves the trolley - looks like a "Combo" with a spline on the inside.


Not Shown 41C4677 Liftmaster 41C4677 Complete Screw Drive Trolley Assembly.


1 31D426 Liftmaster 31D426 Drive Shaft Cover


2 41B4245 Line cord

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3 30B363 Liftmaster 30B363 Capacitor for 1/2 HP opener


30B387 Liftmaster 30B387 Capacitor for 1/3 HP opener


4 12A373 Capacitor Bracket

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5 41A3150 Terminal Block

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6 41D4671 Liftmaster 41D4671 Limit Switch Assembly


7 12D554 Liftmaster 12D554 Limit Switch Bracket

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8 41D4759 Liftmaster 41D4759 Complete Motor Drive Assembly


8A 144B41 Liftmaster 144B41 - 22 Tooth Pulley


8B 144B42 Liftmaster 144B42 - 28 Tooth Pulley


8C 20C14 Liftmaster 20C14 Drive Belt


8D 158A69 Liftmaster 158A69 Retainer Ring


9 41A4843 Liftmaster 41A4843 Interrupter Cup


10 41A4837 Liftmaster 41A4837 Worm Gear & Retainer Discontinued
11 41C4669 Wire Harness

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12 41C4672 Liftmaster 41C4672 RPM Sensor


13 Various
Receiver Logic Board Assembly - click on the link below to a page that is dedicated to Logic Boards.


14 Various


These are discontinued and no longer available


15 41C4840-4 Liftmaster 41C4840-4 Control Center Access Door


16 175C123 Liftmaster 175C123 Light Socket


17 108D47
Liftmaster 108D47 Light Lens for Screw Drive Opener
These are discontinued and no longer available


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