LiftMaster K75-10170 Trolley

The LiftMaster K75-10170 Trolley is an OEM-grade replacement designed for LiftMaster chain drive systems. Built for high-cycle operation, this trolley provides reliable linkage between the door arm and the rail carriage—ensuring consistent door travel and system alignment.

Its durable construction and snap-in fit make it ideal for service professionals performing repairs or preventative maintenance. Whether you're addressing worn drive components or chain misalignment, this trolley helps restore system integrity with minimal install time.

Technician Highlights:

• OEM replacement trolley for LiftMaster chain drives

• Maintains arm-to-rail travel for consistent operation

• Durable composite and metal design for long service life

• Ideal for repairs, rebuilds, or noisy opener issues

• Quick-fit design reduces installation time