LiftMaster K16-3L320 Drive Belt for SW420GL
LiftMaster K16-3L320 Drive Belt for SW420GL is backordered and will ship as soon as it is back in stock.
Core Details
Mounting Type | Direct-Mounted |
Application Type | Gate |
Description
Description
Replacement Drive Belt for LiftMaster SW420GL Swing Gate Operator
The LiftMaster K16-3L320 is a genuine drive belt (3L320) designed for use with the SW420GL swing gate operator. This OEM timing belt transmits power between the motor and gear assembly, enabling consistent gate movement and efficient torque delivery. Also known as part number 16-3L320, it is built to factory specifications to ensure smooth, quiet operation and long-term reliability in commercial gate systems.
Also referenced as LiftMaster part number: 16-3L320. Always consult your manual or parts diagram before ordering.
Key Features
- OEM replacement drive belt – Engineered for precise fit and performance
- 3L320 belt size – Matches original factory-installed specifications
- Ensures smooth gate motion – Maintains power transfer between motor and gearbox
- Reduces vibration and noise – Supports quiet, efficient gate operation
- Built for SW420GL operators – Compatible with LiftMaster swing gate systems
Technical Specifications
- Part Number: K16-3L320
- Also Known As: 16-3L320
- Component Type: Drive belt
- Belt Type: 3L320
- Compatible Model: LiftMaster SW420GL
- Included: One drive belt
- Installation: Direct OEM replacement
Conclusion
The LiftMaster K16-3L320 Drive Belt is a vital component for maintaining the performance and reliability of SW420GL swing gate operators. With its factory-matched design and smooth operation, this replacement belt helps ensure your system continues operating efficiently and quietly.

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