Graco 16N786 Piston Packing
Compatible Machines
- Requires verification with the machine’s pump parts manual
- Fits U-cup style piston packing applications in selected Graco piston-type pumps
- Not officially listed by Graco for specific models — confirm before ordering
Product Details
The Graco 16N786 Piston Packing is a U-cup style piston seal designed to prevent fluid bypass inside the pump’s piston chamber. It helps maintain optimal pressure, reduces leakage, and supports consistent pump performance. This packing is used in Graco piston-driven fluid sections where U-cup sealing is required.
Key Features
- U-cup style piston packing for reliable sealing
- Ensures efficient pressure retention within the pump
- Designed for Graco piston-type pump assemblies
- Ideal replacement when the original packing shows wear or leakage
Frequently Asked Questions
This packing forms a tight U-cup seal around the piston to prevent fluid bypass and maintain pumping pressure during operation.
You should check your machine’s parts manual or pump assembly diagram. If part number 16N786 is listed in the piston assembly, it is compatible.
Replace when you experience leakage, reduced pressure, inconsistent spray pattern, or during scheduled pump maintenance intervals.
