Liftmaster 041C4220A Gear Kit

Complete Replacement Assembly for Chain Drive Garage Door Openers

Restore the performance of your chain drive garage door opener with the LiftMaster 041C4220A Gear and Sprocket Kit. This comprehensive assembly includes all the most commonly worn drive system components, making it a smart choice for repairing aging openers without replacing the entire unit.

Designed for LiftMaster, Chamberlain, Sears Craftsman, Master Mechanic, and select Wayne Dalton models, this kit is ideal for openers manufactured after 1984. The included spur gear is pre-mounted on a new output shaft, eliminating the need to disassemble internal components—making installation faster and easier for DIYers and professionals alike.

Whether you're dealing with a stripped gear or noisy, inefficient opener operation, this OEM replacement kit delivers the parts you need for a long-lasting repair.

? Product Highlights

• Part Numbers: 041C4220A (also known as 41C4220, 41C4220C, 41A2827)

• Includes:

  • Output shaft with pre-mounted spur gear

  • Worm gear

  • Helical gear

  • Bearings

  • Lubricant

  • Hardware for installation

• Durable Construction: Genuine OEM parts ensure performance and compatibility

• No Shaft Disassembly Required: Pre-assembled spur gear simplifies repair

• Compatible with Most Chain Drive Openers After 1984

? Compatibility

This gear kit is compatible with many chain drive models from:

• LiftMaster

• Chamberlain

• Sears Craftsman

• Master Mechanic

• Some Wayne Dalton units using similar gear mechanisms

? Not compatible with belt drive or wall-mount openers.

? Applications

• Replaces stripped or broken drive gears

• Eliminates loud or irregular garage door movement

• Extends opener lifespan and avoids full replacement

? Why Choose the LiftMaster 041C4220A Kit?

• Cost-effective: Revives your opener at a fraction of replacement cost

• Complete solution: Includes all necessary hardware

• Reliable performance: OEM components meet manufacturer standards

• Easy to install: Perfect for DIY users and installers