Graco 01/0055-1AD/89 Nylon HD Piston 12.863 x 0.194

Compatible Machines

The Graco 01/0055-1AD/89 Nylon HD Piston 12.863 x 0.194 is designed for select Graco airless sprayer pump assemblies requiring a 12.863” piston with 0.194 specification and high-density nylon construction.

• Graco Ultra Max II Series (specific large-frame pump configurations)
• Graco Mark Series Airless Sprayers (compatible pump assemblies only)
• Graco GH Hydraulic Airless Systems (matching piston specification required)
• Graco 690 / 790 / 1095 / 1595 Professional Sprayer Units
• Graco OEM pump rebuild kits requiring 12.863 x 0.194 Nylon HD pistons

What is the Graco 01/0055-1AD/89 Nylon HD Piston 12.863 x 0.194?

The Graco 01/0055-1AD/89 is a precision-engineered piston component used in professional high-pressure airless spray pump systems. Built from Nylon HD, it delivers a balance of strength, dimensional stability, and wear resistance under continuous hydraulic load.

With a size specification of 12.863 x 0.194, it ensures accurate sealing and smooth reciprocating motion inside compatible Graco pump cylinders, maintaining consistent pressure output and spray quality during demanding coating applications.

This component is commonly used in pump rebuilds and maintenance cycles where OEM-level performance and precise fitment are required.

Key Features & Benefits

• Nylon HD construction for durability and impact resistance
• Precision-machined 12.863 x 0.194 dimensions
• Supports stable high-pressure airless spray performance
• Reduces wear and maintains pump efficiency over time
• Compatible with select Graco professional pump systems

Applications

Used in industrial coatings, commercial painting, protective surface applications, and heavy-duty construction finishing where Graco airless spray systems operate under continuous high-pressure conditions.

Frequently Asked Questions