The LiftMaster gear and sprocket assembly part 41A4885-2 is the most common part to wear out in a garage door opener. Compatible with LiftMaster belt drive models made from 1984 - 2001. This is the genuine replacement made by LiftMaster and includes everything needed for quick installation. The 41A4885-2 gear and sprocket assembly includes the drive gear(41A2817), worm gear, helical gear(41A2818), retainers, washers, pins, bearing plate, grease and instructions.
Replaces parts: 41A4885, 41A4885-1 and 41A4885-3
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Compatible with LiftMaster 1270, 1280 and 1280R models