The GRACO 16U801 STOP, UPPER BALL is a replacement part designed for use in GRACO pumps and fluid handling equipment. Its material is not explicitly specified in available documentation, but it is typically a durable metal or engineered plastic component. The part functions as a stop mechanism for the upper ball within the pump assembly, ensuring proper operation and preventing over-travel or misalignment of internal components. Key Features: Stop, Upper Ball 16U801 Compatible with select GRACO pump models, including those referenced in GRACO manuals (e.g., ToughTek® F680e Fireproofing Pump, 680cc Pump Lower) Ensures proper alignment and travel of internal ball components Designed for reliability and long service life Ease of maintenance as a replaceable part Applications:Used in GRACO pumps and fluid handling systems, particularly in industrial and fireproofing applications where precise control of internal ball movement is required. Installation Notes: Using genuine GRACO parts ensures optimal performance, safety, and longevity of the equipment. Refer to the specific GRACO equipment manual for detailed installation instructions Ensure the pump is depressurized and isolated before replacing the part Inspect related components (e.g., ball, seat, o-rings) for wear and replace as necessary Follow all safety procedures outlined in the manual