Graco 246428 Endurance Chromex Piston Pump, part number 246428. Graco Endurance Chromex replacement piston (displacement) pump / lower for airless paint sprayers. 3300 psi maximum working pressure. Fluid inlet 1 1/4 in Male UNF; fluid outlet 1/4 in Female NPT. For use with: GMAX 3400 Standard Series (2000 and newer). All values read from the Graco product page (246428 on graco.com).
| Brand | Graco |
| Line | Endurance |
| Model | Endurance |
| Series | Chromex |
| Part number | 246428 |
| Fluid Inlet Size (in) | 1 1/4 |
| Fluid Inlet Thread Gender | Male |
| Fluid Inlet Thread Type | UNF |
| Fluid Outlet Size (in) | 1/4 |
| Fluid Outlet Thread Gender | Female |
| Fluid Outlet Thread Type | NPT |
| For Use With | GMAX 3400 Standard Series (2000 and newer) |
| Maximum Working Pressure (psi) | 3300 |
| Type | Replacement Pump |
| Pressure rating | 3300 psi max working |
| MOQ | 1 |
Endurance replacement pumps are displacement lowers fitted to Graco airless sprayers. Match the pump to the host sprayer model and production year (this part: GMAX 3400 Standard Series (2000 and newer)); confirm fluid outlet size and thread before ordering.