Description
This piston valve is a direct-fit replacement for Graco part 239937, used in 190 Classic, 190 ES (stPro-style), 190 ES Plus. It installs in the original position with no modification.
Common reasons this piston valve is replaced:
- A worn or pitted seat face
- The ball no longer seating and holding pressure
- Loss of prime, or pressure that will not hold at shutdown
- Normal wear from abrasive or high-solids coatings
Manufactured to OEM-equivalent dimensions for proper fit and performance. Compatible equipment models are listed in the Compatible Equipment section below, where available.
