Graco 158379 O-Ring Packing

Graco 158379 O-Ring Packing Overview

The Graco 158379 O-Ring Packing is a genuine OEM sealing component designed for air motors and pump assemblies. It prevents leaks and maintains proper internal pressure for reliable operation of Graco equipment.

Compatible Machines

This O-Ring fits the following Graco equipment:

• Graco President® Air Motors – 15:1, 24:1, 30:1 ratios and other models requiring internal sealing O-Rings
• Graco Bulldog® Pumps – for internal pump/air motor sealing
• Graco Airless Sprayers – including Ultra Max II, ProX19, Mark X 15, Ultra 500, ProContractor 2100, Magnum X7, Ultra 395
• Other Graco Fluid Handling Equipment – models specifying part 158379 in their service manuals

Key Features

• OEM Quality: Genuine Graco part for reliable and precise fit
• Leak Prevention: Seals critical interfaces in pumps and air motors
• Durable Material: Nitrile rubber for long-lasting performance
• Direct Replacement: Matches original specifications for proper function

Technical Details

Installation & Maintenance Tips

• Confirm the exact pump or air motor model before ordering to ensure proper compatibility.
• Inspect mating surfaces for wear or damage prior to installation.
• Replace O-Rings during routine maintenance to maintain sealing and pressure.
• Use only genuine Graco parts for safe and reliable operation.

Frequently Asked Questions