Graco 158367 Lower Valve Grommet for Air Motor

Graco 158367 Lower Valve Grommet Overview

The Graco 158367 Lower Valve Grommet is a genuine OEM component used in the air motor of Graco pumps. It seals and aligns the lower valve stem, ensuring smooth and reliable operation of the air motor.

Compatible Machines

This grommet fits the following Graco Pump Series:

• Fire-Ball 300 Series – Graco air motor pumps (5:1 ratio)
• Fire-Ball 425 Series – Graco air motor pumps (3:1, 6:1, 10:1 ratios)
• Graco President® Air Motors – certain models as specified in service manuals

Key Features

• OEM Quality: Genuine Graco part for precise fit and long-lasting performance.
• Seals and Aligns: Maintains correct position of the lower valve for smooth cycling.
• Durable Construction: Designed to withstand industrial air motor operation.
• Direct Replacement: Fits specified Fire-Ball 300 and 425 Series pumps.

Technical Details

Installation & Maintenance Tips

• Confirm your pump series and model number before ordering to ensure compatibility.
• Inspect the valve stem and seat for wear before installing the grommet.
• Replace if the grommet is cracked, deformed, or shows signs of wear affecting valve operation.
• Use only genuine Graco parts for reliable air motor performance.

Frequently Asked Questions