239937 Piston Valve, UM 395 / 695 / 190ES
|Availability:||In stock (1)|
Fit 395, 490, 495, 590, 595, 190ES Graco
239937 OEM Graco piston valve acts as the valve seat, in the outlet valve. The piston can become pressure eroded and will in that state fail to build proper pressure. The piston valve can also be purchased in the 24W617 Piston Valve and Rod Kit for PC fluid sections, or in the 249125 Rod and Piston Kit for standard models (pined rod).