GRACO Piston Seal Kit, 5.5" - (SKU: 25A198)The GRACO 25A198 is a piston seal kit designed for use in GRACO airless spray equipment. It is an original replacement part intended to restore sealing integrity and performance in the piston assembly of compatible GRACO pumps. The specific material is not specified in available listings, but such kits typically use durable elastomers or engineered plastics for reliable sealing under high pressure and repeated use. Key Features: Seal Kit Piston, 5. 5"

The GRACO 24J586 KIT

ensuring continued performance in industrial and commercial painting

Replace if calibration is off or if physical damage is present

supporting reliable operation in applications such as fireproofing pumps and other fluid handling systems

Compatible with most fluid transfer applications as a drop-in replacement for pneumatic diaphragm pumps

Ease of maintenance: Quick replacement of worn O-rings

Compatible with ceramics

Air Cylinder Spool

Reliability: Ensures continued performance of critical fan and compressor components

FK (Fluoropolymer/Geolast) seat

but it is a genuine GRACO part designed for reliability and longevity

Clean painted surfaces to preserve finish and prevent rust