The GRACO 189441 Seat, Piston is a stainless steel component designed to provide a durable and wear-resistant sealing surface within GRACO pumps. It is intended to ensure reliable operation and longevity of the pump assembly by maintaining proper sealing between the piston and its seat, critical for high-pressure fluid handling applications.

Key Features:

• Seat, Piston
• Stainless steel
• Compatible with select GRACO pump models (e.g., Check-Mate 800 series, Viscount II, King, Senator, Bulldog)
• Durable stainless steel construction for wear resistance
• Critical for maintaining pump sealing and reliability
• Designed for easy replacement and maintenance

Applications:
Used in GRACO pumps for high-pressure fluid transfer and spray applications, including industrial, mining, and agricultural equipment.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and longevity of the equipment.
• Inspect mating surfaces for damage or wear before installation
• Follow manufacturer guidelines for installation and torque specifications
• Ensure proper alignment of the piston seat within the pump assembly
• Regularly inspect the piston seat for wear or damage
• Replace the seat as part of routine maintenance to prevent pump failure
• Use only genuine GRACO replacement parts for best results