LiftMaster 41C4220A Gear and Sprocket Assembly

The LiftMaster gear and sprocket assembly part 41C4220A is the most common part to wear out in a garage door opener. This is the genuine replacement made by LiftMaster and includes everything needed for quick installation. The gear and sprocket assembly is fully compatible with 1/3 and 1/2 horse power single sprocket chain drive models made after 1984.  Compatible brands include; Chamberlain, LiftMaster and private labeled brands such as Access Master, Craftsman, Do It, Master Mechanic, Raynor and more. There is no replacement for models made prior to 1984. Please confirm compatibility in the reference charts in the "Compatible Models" tab.

Does not work on models with dual sprockets.  Use our product finder to get the correct part.

Replaces parts: 41A2827 and 41C4220

LiftMaster 41C4220A gear and sprocket assembly includes:

• drive gear(41A2817)
• helical gear(41A2818)
• worm gear
• retainers
• washers
• pins
• bearing plate
• grease
• instructions

LiftMaster Compatible Models: 1000, 100WD,110WD, 1040, 1045, 1050, 1060, 1140, 1145, 1155, 1160, 1240, 1240R, 1245, 1245LK, 1245R, 1250, 1255, 1255R, 1260, 1260LK, 1265, 1345, 1355, 140,150, 2000, 200WD, 210WD, 215WD, 220WD, 2245, 2255, 2265, 240, 2565, 300WD, 310WD, 315WD, 320WD, 3245, 3245M, 3255, 3255M, 3265, 3265M, 350, 4000, 4001, 450, 5000, 550, 8065, 985

Compatible with Access Master model: M385

Compatible with Master Mechanic models: 601MM, 621MM and 622MM.

Compatible with Do It models: 4500DIDM and 4500DI-2DM

Need help finding your model number? Contact us at info@movingupgaragedoors.com or 877 379 4947