The GRACO 166058 SEAL, PISTON is a replacement piston seal designed for use in GRACO spray foam and fluid handling equipment. Its material is not specified in available sources, but similar GRACO piston seals are typically made from durable elastomers or engineered plastics for reliable sealing and long service life. This part is intended to maintain proper pressure and prevent leaks within the piston assembly of GRACO pumps and spray systems.

Key Features:

• Piston Seal
• 166058
• Designed for GRACO spray foam and fluid handling equipment (specific models not listed)
• Engineered for reliable sealing and long service life
• Ease of maintenance and replacement
• Designed for use in high-pressure and high-viscosity applications

Applications:
Used in GRACO spray foam and fluid handling equipment to ensure proper piston operation and prevent leaks.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and equipment longevity.
• Always follow GRACO equipment manual instructions for seal replacement
• Inspect the piston and cylinder for wear or damage before installing a new seal
• Use appropriate lubrication as recommended by GRACO
• Ensure the equipment is depressurized and isolated from power sources before maintenance