LiftMaster K07-50118 Q058 Output Shaft Kit Overview
The LiftMaster K07-50118, also known as Q058, is an output shaft kit used in select legacy swing gate operator gearbox assemblies. The output shaft is a load-bearing mechanical part that transfers torque from the gearbox to the external drive linkage or arm assembly. When the shaft or mating hardware is worn, damaged, or distorted, the operator may run but fail to transfer force properly, make noise under load, or show excessive movement at the drive connection.
This part is most commonly tied to LiftMaster / Elite CSW200, CSW200UL, and RoboSwing swing gate operator references, with some listings describing it as a Q058 output shaft for size 60 gearboxes. Because this part lives inside or at the output side of the gearbox, exact fitment must be verified carefully. It is not the same as a K07-2706 arm hub or K07-2705 arm stop. A failed output shaft should also trigger inspection of the gearbox, bearings, keyways, drive arm, gate stops, and gate hinge condition.
Compatible With
The strongest compatibility references for this output shaft kit are:
- LiftMaster / Elite CSW200 swing gate operators using the Q058 output shaft
- LiftMaster CSW200UL swing gate operators when the parts diagram lists K07-50118 or Q058
- Legacy RoboSwing swing gate operators with matching size 60 gearbox output shaft application
- CSW200U and related CSW200 family references only when the gearbox and diagram match
- Not a universal output shaft for every LiftMaster swing gate operator
Features and Specifications
| Manufacturer | LiftMaster / Chamberlain Group |
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| Product Type | Output shaft kit |
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| Part Number | K07-50118 |
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| Also Known As | Q058 |
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| Application | Gearbox output shaft / drive transfer component |
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| Compatible Operator Type | Select legacy swing gate operators |
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| Common Model References | CSW200, CSW200UL, RoboSwing |
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| Notes | Often referenced for size 60 gearbox applications; verify gearbox and diagram |
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Also Known As / Related Part Numbers
- K07-50118
- 07-50118
- 0750118
- Q058
- Elite Q058
- LiftMaster output shaft 2-1/2 inch
- CSW200 output shaft
- RoboSwing output shaft
Technician Note
When an output shaft is damaged, look for the reason it failed. A dragging gate, hard stop impact, loose arm hub, worn gearbox, or misadjusted limits can overload the shaft and damage the replacement part.
Before Ordering
- Confirm the operator model is CSW200, CSW200UL, RoboSwing, or diagram-supported equivalent
- Match the original shaft or parts list to K07-50118 / Q058
- Verify gearbox size and output-shaft style before ordering
- Inspect the gearbox, arm hub, keyway, bearings, and gate stops
- Use a qualified gate technician for gearbox or high-force swing operator repairs
Professional Advisory
Swing gate gearbox repairs involve heavy moving parts and high torque. Secure the gate and operator before disassembly, and do not operate the system with damaged drive components.
Product Questions and Answers
What is another name for K07-50118?
K07-50118 is commonly listed as Q058 or Elite Q058.
Which operators commonly use this output shaft?
It is commonly listed for CSW200, CSW200UL, and RoboSwing swing gate operator applications.
Is this the same as an arm hub?
No. This is an output shaft kit. The arm hub is a separate external drive-linkage component.
What should be checked before replacing the shaft?
Check the gearbox, keyway, arm hub, gate stops, hinges, and overall gate movement to find the cause of the shaft wear or failure.
Can this be used on newer CSW24UL operators?
Only if the exact parts diagram calls for K07-50118 or Q058. Do not assume newer CSW24UL models use the same shaft.
