Toro 5-1077 Square Key

Product Description

The TORO 5-1077 is a genuine OEM square key designed for use in Toro equipment drive systems. Square keys are mechanical fasteners that lock rotating components - such as pulleys, sprockets, and gears - to a shaft, preventing slippage under load. This part is sourced directly from Toro and meets original factory specifications. Installation is typically performed by equipment technicians or experienced grounds maintenance professionals during drivetrain service or component replacement.

The TORO 5-1077 square key is suited for Toro power equipment requiring OEM drivetrain hardware. Square keys are commonly replaced during shaft seal service, blade spindle rebuilds, or any procedure that requires removing a keyed component from its shaft. Using a genuine OEM key ensures proper fit and load transfer within the drive assembly.

Key Features

• Genuine OEM part manufactured to Toro factory specifications
• Square key design provides positive shaft-to-component locking under rotational load
• Direct replacement for worn, sheared, or lost original hardware
• No modification required for OEM fitment

Compatibility

Designed as a genuine OEM-style replacement square key for Toro power equipment drivetrain assemblies requiring part number 5-1077.

Installation Notes

Disconnect the spark plug wire or shut off the equipment before beginning any drivetrain service. Inspect the keyway on both the shaft and the mating component for wear or damage before installing the new key. Use appropriate hand tools to seat the key fully into the keyway before pressing or sliding the mating component into position. Follow all relevant equipment manufacturer service procedures during reassembly.