Graco 305340 Pinion Shaft

Compatible Machines

• Graco professional airless paint sprayers with internal gear drive systems
• Graco contractor-grade electric airless sprayers
• Graco industrial airless sprayers using gearbox-driven pump assemblies
• Selected Graco field marking and pavement marking sprayers

Compatibility depends on the internal gearbox configuration. Always verify using your machine’s parts diagram before ordering.

Product Description

The Graco 305340 Shaft, Pinion is a genuine OEM replacement component designed for use inside Graco airless sprayers. This precision-machined shaft plays a critical role in the drive and gear assembly, transferring rotational power from the motor to the pump system.

Built to Graco’s strict manufacturing standards, this pinion shaft helps ensure smooth operation, consistent performance, and long service life when used as a direct replacement for worn or damaged internal components.

Key Features

Installation Notes

• Installed during gearbox or pump drive servicing
• Sprayer must be powered off and fully depressurised before installation
• Recommended to be installed by a qualified service technician
• Using genuine parts helps maintain proper fit and machine reliability

Frequently Asked Questions