Part 730-505 is a replacement pump housing used in the fluid section of compatible airless sprayers. This precision-machined component houses the piston, packings, and inlet/outlet valves, forming the core of the pumping system. When the original housing becomes cracked, worn, or corroded, replacement restores proper pump function and prevents fluid leaks.
| Part Number | 730-505 |
|---|---|
| Part Description | Pump Housing |
| Brand | Universal |
| Fits | 440 XC Airless_Sprayer; 550 XC Airless Sprayer; 660 XC Airless Sprayer; 690 GXC Airless Sprayer; Epic 447HPX; Epic 660HPX; Epic 690 HPG; PowrLiner 2800; PowrLiner 3100; ProMark II; RentSpar 700 |
| Condition | New |
The 730-505 pump housing is a direct replacement component for the fluid section on a wide range of airless sprayers including 440 XC, 550 XC, 660 XC, 690 GXC, Epic 447HPX, Epic 660HPX, Epic 690 HPG, PowrLiner 2800, PowrLiner 3100, ProMark II, and RentSpar 700. This precision-machined housing contains the piston bore, inlet and outlet valve cavities, and fluid passages that form the heart of the pumping system. It provides the structural foundation for all internal pump components and must maintain precise tolerances for efficient operation. A cracked, worn, or corroded housing can cause internal bypass, loss of pressure, erratic output, or external leaks. Manufactured from wear-resistant materials, this replacement housing restores proper pump geometry and reliable performance. Installation requires transfer of internal components and careful attention to sealing surfaces.
| Component containment | Houses piston, packings, and valve assemblies |
|---|---|
| Fluid channeling | Directs material flow through pump cycle |
| Pressure containment | Withstands system operating pressure |
| Cracked housing | Visible cracks cause leaks or pressure loss |
|---|---|
| Worn bore | Piston bore oversize, causing bypass |
| Corrosion damage | Material degradation compromises integrity |
| Thread damage | Inlet/outlet port threads stripped |
Pump housing 730-505 is compatible with the following models. Verify fit using your equipment's parts diagram.
| Compatible Models |
|---|
| 440 XC Airless_Sprayer |
| 550 XC Airless Sprayer |
| 660 XC Airless Sprayer |
| 690 GXC Airless Sprayer |
| Epic 447HPX |
| Epic 660HPX |
| Epic 690 HPG |
| PowrLiner 2800 |
| PowrLiner 3100 |
| ProMark II |
| RentSpar 700 |
When replacing the pump housing, inspect these associated components to ensure proper pump operation.
Check for scoring or wear; replace if damaged.
Always install new packings with housing.
Inspect for wear or damage; replace as needed.
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