Replacement Gear Sprocket Kit For 1/3 To 1/2 HP Chain Drive Garage Door Openers, DIY Friendly Fits Sears Craftsman Chamberlain LiftMaster Models 139.53615SR 139.53995SRT 2265R 248730 41AC050-1 41CA4220 41A5021 41A5483 1256LM And More

Chain-Drive Garage Door Sprocket Gear Replacement Kit ✔️ Includes gear, sprocket, worm gear, bearings, grease, seal (single kit)

This gear and sprocket kit is a direct replacement for 1/3 and 1/2 HP chain-drive garage door openers from Chamberlain, LiftMaster, Sears, and Craftsman, compatible with models produced since 1984. It includes a full set of bearings and grease for a ready-to-install repair.

✅ Includes gear, sprocket, worm gear, grease, motor shaft bearings, and sprocket bearings
✅ Compatible with Chamberlain, Sears, Craftsman chain-drive openers 1984-current
✅ Replacement for Craftsman 139.53615SR, 139.53995SRT, LiftMaster 41A5483
✅ Fits Chamberlain 2265R, 248730, 41A5021, 41CA4220, 41A3493 and related models

💡 What is a gear sprocket replacement kit for chain-drive garage door openers used for? Handy fix for restoring smooth operation.
- Restores gear mesh and reduces wear
- Extends opener life with proper lubrication
- Simple DIY installation with included bearings and grease