Graco 15R977 Pump Lower Adapter 50cc 3.5 Inch

Graco 15R977 Adapter Pump Lower – 50 cc, 3.5″ for Precise Fluid Handling

Compatible Machines

• Graco 50 cc fluid section sprayers
• Airless sprayers that use modular pump assemblies
• High-output professional spraying equipment requiring larger fluid capacity

The **Graco 15R977 Adapter** connects the lower fluid section of your sprayer to a 50 cc displacement system, enabling superior fluid flow and increased output.

Key Features

Installation & Usage Tips

• Always depressurize the system before removing or installing the adapter.
• Use proper alignment to avoid cross-threading.
• Apply a light, compatible lubricant to threads to ease installation.
• Check for leaks after installation and during first few spray cycles.
• Perform a routine inspection during regular maintenance to ensure the adapter remains tight and seal surfaces are intact.

Frequently Asked Questions