Chamberlain (Liftmaster) Screw Drive Opener Parts for Models 4600, 4620, 4640, and 9902:
| Item | Part Number |
Description |
Price |
| 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). Click here for 990LM manual | $21.00 Ea. |
| 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. | $3.50 |
| Not Shown | 41C4677 | Liftmaster 41C4677 Complete Screw Drive Trolley Assembly. | $16.20 |
| 1 | 31D426 | Liftmaster 31D426 Drive Shaft Cover | $5.80 |
| 2 | 41B4245 | Line Cord | E-mail for price |
| 3 | 30B363 | Liftmaster 30B363 Capacitor for 1/2 HP opener | $16.98 |
| 4 | 12A373 | Capacitor Bracket | E-mail for price |
| 5 | 41A3150 | Terminal Block | E-mail for price |
| 6 | 41D4671 | Liftmaster 41D4671 Limit Switch Assembly | $10.68 |
| 7 | 12D554 | Liftmaster 12D554 Limit Switch Bracket | E-mail for price |
| 8 | 41D4759 | Liftmaster 41D4759 Complete Motor Drive Assembly | $75.00 |
| 8A | 144B41 | Liftmaster 144B41 - 22 Tooth Pulley | $9.00 |
| 8B | 144B42 | Liftmaster 144B42 - 28 Tooth Pulley | $4.62 |
| 8C | 20C14 | Liftmaster 20C14 Drive Belt | $7.54 |
| 8D | 158A69 | Liftmaster 158A69 Retainer Ring | $1.00 |
| 9 | 41A4843 | Liftmaster 41A4843 Interrupter Cup | $2.88 |
| 10 | 41A4837 | Liftmaster 41A4837 Worm Gear & Retainer | $5.00 |
| 11 | 41C4669 | Wire Harness | E-mail for price |
| 12 | 41C4672 | Liftmaster 41C4672 RPM Sensor | $12.30 |
| 13 | 41D4674-2C | Chamberlain 41D4674-2C Receiver Logic Board
Assembly for 4600.
Click Here to Link to Current Logic Board Information (newest versions). |
$74.00 |
| 41D4674-14G (-14H is current version) |
Chamberlain 41D4674-14G Receiver
Logic Board Assembly for 4620, 4640, & 9902. Click Here to Link to Current Logic Board Information (newest versions). |
$74.00 | |
| 14 | Various | Cover | E-mail for price |
| 15 | 41C4840-4 | Liftmaster 41C4840-4 Control center access door | E-mail for price |
| 16 | 175C123 | Liftmaster 175C123 Light Socket | $5.00 |
| 17 | 108D47 | Liftmaster 108D47 Light Lens for Screw Drive opener | $13.96 |
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