OEM port plug designed to securely seal indicator ports, helping protect internal components from contamination and maintain reliable system performance.
| Compatible Machines | Application |
|---|---|
| Selected Graco ProMix proportioning systems | Indicator port sealing |
| Selected Graco Reactor fluid handling equipment | Unused port closure |
| Any Graco equipment specifying OEM Part 557776 | Direct replacement plug |
The Graco 557776 Plug, Port Ind is a genuine OEM replacement plug designed to seal an indicator port on compatible Graco equipment. It helps protect internal components from contamination while maintaining system integrity and ensuring reliable equipment operation.
Replacing a damaged or missing port plug with the correct OEM part helps maintain proper sealing, protects internal passages from debris, and supports the long-term reliability of compatible Graco equipment.
