Features: Premium Materials: All components of the kit are made from durable, premium materials, ensuring long-lasting performance and reliability. Cost-Effective Solution: Instead of replacing the entire garage door opener, this gear kit allows you to simply replace the worn-out gears, providing a cost-effective solution to extend the lifespan of your garage door opener. Compatible Models: Replacement for Liftmaster, Chamberlain, Craftsman, Sears, Master Mechanic, Wayne Dalton chain drive units. Compatible with 2245, 2255, 2265, PD210, PD212, PD610, PD612K, 1200 Series, 1240, 1245, 1246, 1250, 1255, 1256, 1260, 1265, and more. Not all models are listed. Easy Installation: This kit is designed for user-friendly installation, allowing homeowners to replace the chain drive gears themselves without the need for professional assistance. Complete Kit Includes: Helical gear and top hat assembly, worm gear, wear bushings, grease, and hardware needed to replace the chain drive gears. Our chain drive gear and sprocket kit is a complete chain drive gear and sprocket replacement. Specifications: Item Name: Garage Door Opener Gear Kit Main Material: Plastic, Metal Color: Silver Package Information: Package Size: 15*10.7*6.8cm5.91*4.21*2.68inch Package Weight: 500g1.1lb Package List: 1 * Garage Door Opener Gear Kit Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!