The GRACO 331409 is a suction seat assembly designed for use in GRACO Lo-Boy airless paint sprayers. It is an OEM (Original Equipment Manufacturer) part, typically constructed from durable materials to ensure reliable suction and efficient operation within the fluid pump system. Its primary function is to facilitate proper fluid intake and sealing within the suction valve assembly.

Key Features:

• Suction Seat Assembly
• Lo-Boy
• GRACO Lo-Boy airless paint sprayers
• Ensures reliable suction and sealing
• Sturdy construction for long service life
• Easy to maintain and replace
• Designed for efficient operation within the pump system

Applications:
Used in GRACO Lo-Boy airless paint sprayers for fluid handling and paint application tasks.

Installation Notes:

• Using a genuine GRACO part ensures proper fit, reliable performance, and maintains equipment warranty.
• Reassemble the lower suction valve assembly by placing the suction seat, O-ring, suction ball, and suction ball guide in the suction nut, then screw onto the fluid pump body.
• Follow the equipment manual for detailed step-by-step instructions.
• Ensure all components are clean and free from debris before installation.
• Check for proper sealing and operation after installation.