LiftMaster K41-0388-000MC Main Board (All MAXUM Operators)

The LiftMaster K41-0388-000MC Motor, Gearbox & Encoder Kit is a field-ready OEM replacement set designed for MJ/MJH 1200 operators with non–3” shafts. This matched assembly includes the motor, gear reducer, and encoder—pre-configured for efficient installation and long-term reliability in high-cycle commercial environments.

Trusted by service professionals, this kit simplifies rebuilds by eliminating part mismatches and restoring full drive functionality. It’s ideal for addressing powertrain degradation, control signal loss, or torque instability in MJ/MJH operator platforms.

Technician Highlights:

• Complete motor/encoder/gearbox kit for MJ/MJH 1200 (non-3")

• OEM-calibrated for optimal torque and feedback control

• Plug-and-play installation for fast field replacement

• Withstands high-cycle industrial operation

• Reduces callbacks and total service time