Graco 168372 Key

Graco 168372 Key – Pump Coupling Parallel Key

Compatible Machines

• Graco Crown Imperial Pumps (select models)
• Corrosion-Resistant 85 Pump Series (per OEM parts listing)

The Graco 168372 Key is a precision-machined parallel key designed for torque transfer between a rotating shaft and pump coupling assembly. It ensures a secure mechanical connection and helps prevent slippage under load. This key measures **0.187" square x 1" long** as referenced in Graco industrial pump documentation.

Part Specifications

Key Features

• Accurate square-cut design for secure torque transfer
• Durable metal construction for industrial performance
• OEM-verified replacement part for proper fitment
• Helps maintain pump and motor alignment during operation

Usage Information

This key is primarily used in Graco’s industrial pumping systems to lock the drive shaft and coupling together. It is typically positioned within the shaft slot of the pump coupling assembly and should be replaced if signs of rounded edges, twisting, or wear are present.

Frequently Asked Questions