Cat Pumps 46254 Unloader Check Valve Seat (Plastic) For Models 3SPX, 4SPX
OEM Check Valve Seat For CAT Pump 3SPX, 4SPX Integrated Unloaders Does Not Include Spring or Check Valve 46254 – Plastic Seat This unloader maintains set system pressure and goes into by-pass with the release of the trigger or an obstruction downstream.4SPX https://www.catpumps.com/sites/default/files/2022-09/4SPX32G1I_E.pdf3SPXhttps://www.catpumps.com/sites/default/files/2021-10/3SPX%20C.pdf