Graco 127325 Cap Fitting 04 JIC CS

Graco Cap Fitting – #04 JIC Carbon Steel (CS)

The Graco 04 JIC cap fitting is a heavy-duty, carbon-steel sealing plug designed to close off a #4 JIC port on high-pressure spray systems. This cap delivers a reliable, leak-free flare connection for maintenance, storage, or temporarily unused lines.

Compatible Graco Machines

This cap is suited for a variety of Graco sprayers and proportioning systems that use #4 JIC fluid connections:

• Magnum X5 Electric Airless Sprayer
• Magnum X7 Electric Airless Sprayer
• Magnum ProX17 Electric Airless Sprayer
• Magnum ProX19 Electric Airless Sprayer
• Magnum ProX21 Electric Airless Sprayer
• Magnum LTS-17 Cart Sprayer
• Magnum LTS-15 Stand Sprayer

*Check your equipment manual to ensure your model uses a #4 JIC fluid port.

Key Features

• Seals a #04 JIC (37° flare) female port
• Made from **carbon steel** for strength and durability
• Hex head design for easy tightening or removal
• Suitable for high-pressure spray systems
• Prevents leaks, contamination, or fluid evaporation during downtime

Technical Specifications

Why Install This Cap?

Installing this cap helps you safely close off fluid paths in your Graco system when a line is not in use. It prevents leaks, contamination, and fluid evaporation — especially valuable during maintenance, storage, or system shutdown.

Installation & Maintenance Tips

• Depressurize the system before installing or removing the cap.
• Ensure the flare mating surface is clean and free of debris.
• Use a correctly sized wrench; don’t overtighten to avoid damaging threads.
• Inspect the flare seat periodically for wear especially if you reconnect it frequently.

Safety Notes

Make sure to relieve all internal pressure before working on fluid lines. Incorrect use or sealing of high-pressure ports could lead to leaks, system damage, or personal injury.

Frequently Asked Questions