Liftmaster K20-1050B-1RSX Motor 1/2 Horsepower
Liftmaster K20-1050B-1RSX Motor 1/2 Horsepower is backordered and will ship as soon as it is back in stock.
Core Details
Voltage | 115V |
Motor Type | AC Motor |
Mounting Type | Bolt-On | Direct-Mounted |
Application Type | Gate | Perimeter | Vehicle |
UL/ETL Certification | Yes |
Description
Description
Replacement AC Motor for LiftMaster SL3000U and CSW200U Operators
The LiftMaster K20-1050B-1RSX is a 0.5 horsepower AC motor engineered for direct replacement in SL3000U, SL3000UL, CSW200U, and CSW200UL gate operators. This continuous-duty motor restores full power and performance to LiftMaster’s high-cycle gate systems. Built to OEM specifications, it ensures reliable operation in residential and commercial environments.
Key Features
- 1/2HP continuous-duty AC motor for LiftMaster gate operators
- Restores original speed and torque for smooth gate movement
- Compatible with slide and swing models: SL3000U/UL, CSW200U/UL
- Factory-direct replacement for fast and secure installation
- OEM LiftMaster® motor for long-term performance
Technical Specifications
- Part Number: K20-1050B-1RSX
- Horsepower: 0.5 HP (1/2HP)
- Motor Type: AC, continuous duty
- Compatibility: SL3000U, SL3000UL, CSW200U, CSW200UL
- Application Type: Residential, Commercial, Secure Access
- Installation: Requires alignment with operator drive assembly; refer to diagram
Conclusion
The K20-1050B-1RSX motor is the trusted OEM replacement for maintaining the performance of LiftMaster SL and CSW series operators. With high reliability and precise compatibility, it ensures your gate system stays operational and secure.

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