Liftmaster K32-50112, GEAR REDUCER, 30:1, Q050
The LiftMaster K32-50112, also known as Q050, is a 30:1 gear reducer used in select Elite and LiftMaster swing gate operator drive systems. It is commonly associated with RoboSwing and CSW200UL style applications and is used where the operator requires this specific gearbox size, ratio, shaft arrangement, and clutch shaft configuration. The reducer is a major drivetrain component, not a general hardware item. It should be selected by model, serial range, and parts diagram because older CSW200 configurations may use different gearboxes depending on production date and horsepower.
Features & Specifications
| Manufacturer | LiftMaster |
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| Product Type | Gear reducer / gearbox assembly |
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| Part Number | K32-50112 |
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| Also Known As | Q050 |
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| Gear Ratio | 30:1 |
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| Application | RoboSwing and CSW200 swing gate drivetrain |
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| Compatible Operator Type | Elite / LiftMaster swing gate operators |
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| Notes | Serial range and clutch shaft style can affect fitment |
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Compatible With
Compatibility depends on the exact operator model, generation, gear ratio, shaft layout, mounting position, and original parts diagram. Use the list below as a practical fitment guide, not as a universal interchange list.
- Elite / LiftMaster RoboSwing operators
- LiftMaster CSW200UL swing gate operators using the Q050 / K32-50112 reducer
- Older CSW200 operators with serial ranges and configurations that call for Q050
- CSW200-DM and 1 HP CSW200 references only where the parts diagram confirms this reducer
Also Known As / Related Part Numbers
- K32-50112
- Q050
- 32-50112
- G3250112
- Q050 gear box assembly
- Size 60 gear reducer / gearbox references
Technician Note
Q050 references can be tied to older CSW200 serial ranges. If the operator falls outside that range, compare against the alternate gearbox shown in the parts diagram.
Before Ordering
- Match the manufacturer part number on the original part or the official LiftMaster parts diagram.
- Confirm gear ratio, shaft size, mounting position, handing, voltage, or kit contents when those details apply.
- Inspect the surrounding chain, sprockets, bearings, clutch, brake, limit hardware, and mounting brackets for wear before replacing only one component.
- Do not substitute a similar-looking reducer, fuse, or clutch part unless the part number and operator diagram support the interchange.
Professional Advisory
Gate and commercial door operators can move heavy loads and may include high-voltage wiring, stored mechanical tension, or monitored safety circuits. Installation, adjustment, and diagnosis should be performed by a qualified gate or commercial door technician when the repair involves electrical components, drivetrain alignment, brake assemblies, or unsafe gate movement.
Product Questions & Answers
What is another number for K32-50112?
K32-50112 is commonly known as Q050 and may be described as a 30:1 size 60 gear reducer.
Which operators commonly use Q050?
It is commonly associated with RoboSwing and CSW200UL swing gate operators, with older CSW200 configurations depending on serial range.
Why does serial number matter on CSW200 operators?
Some CSW200 units used different gearboxes by production range, so the operator serial number helps confirm the correct replacement.
Can Q050 replace Q071?
No. Q050 and Q071 are different reducer references and should not be interchanged unless the official parts diagram says so.
What measurements should be checked?
Shaft size, clutch shaft style, output shaft, bolt pattern, and gear ratio should be compared with the original reducer.
