LiftMaster 41A6241 Screw Drive Motor Replacement Kit
The LiftMaster 41A6241 motor kit is a factory-style replacement motor assembly for select 1/2 HP AC screw drive residential garage door openers. It is used to restore the main drive power inside compatible screw drive operators where the original motor assembly has failed or can no longer transfer power smoothly to the rail system.
This is a drive-type-specific repair part. A screw drive opener uses a threaded rail system, and the motor assembly must match the opener generation, mounting pattern, motor rating, and internal wiring. Similar LiftMaster and Chamberlain motors can look close from the outside, but chain drive, belt drive, DC, and older screw drive assemblies are not automatically interchangeable.
Compatible With
Use this part only when the opener parts diagram calls for 041A6241 or 41A6241.
- Select LiftMaster 1/2 HP AC screw drive garage door openers manufactured after 2005
- Select Chamberlain 1/2 HP AC screw drive garage door openers manufactured after 2005
- LiftMaster 3240 screw drive opener applications when confirmed by parts diagram
- Related private-label Chamberlain Group screw drive openers that list 041A6241 / 41A6241
- Residential screw drive opener motor replacement where the original motor label and parts diagram match
Compatibility note: Do not use this part on chain drive, belt drive, DC motor, jackshaft, or screw drive models that call for a different motor assembly.
Features and Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster |
| Product Type | Motor replacement kit |
| Part Number | 41A6241 |
| Related Number | 041A6241 |
| Horsepower | 1/2 HP |
| Drive Type | Screw drive |
| Application | Residential garage door opener motor repair |
| Compatible Operator Type | Select AC screw drive openers |
| Production Range | Commonly associated with units manufactured after 2005 |
| Notes | Verify by opener model and replacement parts diagram |
Also Known As / Related Part Numbers
- 041A6241
- 41A6241
- LiftMaster 041A6241
- LiftMaster 41A6241
- 1/2 HP screw drive motor kit
- Screw drive motor replacement assembly
- 3240 motor kit reference
Technician Note
If the opener hums, stalls, or starts and stops, do not assume the motor is the only failed part. Check the door balance, screw rail condition, coupler, drive hardware, and RPM feedback area before installing a new motor.
Before Ordering Checklist
- Confirm the opener is a 1/2 HP AC screw drive model.
- Match the original parts diagram to 041A6241 or 41A6241.
- Verify the opener production generation, especially after-2005 screw drive units.
- Inspect the screw rail, coupler, and drive hardware for binding or wear.
- Do not install on belt drive, chain drive, DC, or wall-mount openers.
Professional Advisory
Motor replacement involves internal opener wiring, moving drive parts, and door balance checks. Disconnect power before service, do not bypass safety devices, and use a qualified garage door technician if the diagnosis involves overheated wiring, damaged harnesses, unsafe door movement, or a door that will not stay balanced by hand.
Product Questions and Answers
What type of opener uses LiftMaster 41A6241?
It is used with select 1/2 HP AC screw drive garage door openers, especially models manufactured after 2005 that list 041A6241 or 41A6241 in the parts diagram.
Is 41A6241 the same as 041A6241?
Yes. 041A6241 and 41A6241 are commonly used for the same LiftMaster screw drive motor replacement kit.
Will this fit a LiftMaster 3240 opener?
It is commonly associated with select LiftMaster 3240 screw drive applications, but the opener model label and replacement parts diagram should still be checked before ordering.
Can this replace a belt drive or chain drive motor?
No. This is a screw drive motor kit and should not be substituted on belt drive, chain drive, DC motor, or wall-mount openers.
What should be checked before replacing the motor?
Check door balance, screw rail condition, coupler wear, wiring condition, and the exact replacement part number shown in the opener parts diagram.
