Complete Kit for Easy Replacement: This comprehensive Drive Gear and Worm Gear Kit is essential for maintaining optimal performance of your garage door opener. It includes both the drive gear and worm survival gears to ensure smooth and reliable operation. Recommended to replace both gears simultaneously for best results. Extensive Compatibility with for Craftsman Models: Ensures compatibility with a wide range of for Craftsman garage door openers including models 13953614SR, 139536151SR, 13953615SR, up to 1395399011 and more. Perfect match for restoring the function of your for Craftsman setup and improving door lifting speed and efficiency. Fits Multiple for Chamberlain Models: Designed to work seamlessly with numerous for Chamberlain garage door opener models such as 41A2817, 1100, 7200, 248735, HD620EV, PD100 among others. Trust this kit to renew your for Chamberlain system for smoother entrance and exit in your garage. Designed for LiftMaster Systems: Compatible with a multitude of for LiftMaster models including 41A2817, 41C4220, 1045-9, 1050-6, 1355, 2245 and more ensuring a broad coverage and versatility. Replace your worn-out gears with this kit and ensure your door opens smoothly and quietly every time. Also Supports for Wayne Dalton Openers: The kit is not only versatile across for LiftMaster, for Craftsman, and for Chamberlain but also supports various for Wayne Dalton garage door systems. This universal appeal makes it a must-have for garage door maintenance and ensures longevity of the opening mechanisms. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:White Material:plastic Package Contents: 1 * Drive and Worm Gear Kit