Part number 704-054 is a Foot Valve Housing used in various Airless Sprayers, Advantage, Impact, PowrLiner, and RentSpray models. This housing contains the foot valve assembly that controls fluid intake from the paint supply. Replacing a cracked, corroded, or leaking foot valve housing restores proper fluid flow and prevents air ingestion into the pump.
| Part Number | 704-054 |
|---|---|
| Part Description | Foot Valve Housing |
| Brand | Multiple |
| Fits | Airless Sprayers, Advantage, Impact, PowrLiner, RentSpray (see compatibility) |
| Condition | New |
The 704-054 Foot Valve Housing is a component that houses the foot valve assembly at the inlet of compatible airless sprayers, pressure washers, and line stripers. It connects the pickup tube to the pump and contains the check valve mechanism that allows fluid to enter on the intake stroke and prevents backflow on the pressure stroke.
This housing is subject to stress from pressure cycles, chemical exposure, and physical impact. Cracks, corrosion, or distortion can lead to air leaks, poor priming, and loss of pressure. Replacing a damaged foot valve housing restores a leak‑free fluid path and ensures reliable pump operation.
| Houses check valve | Contains the foot valve ball and seat for one‑way fluid flow |
|---|---|
| Connects pickup tube | Provides threaded or barbed connection for the suction tube |
| Fluid inlet path | Directs paint or water from the container to the pump |
| Visible cracks | Housing is cracked or broken, causing leaks or air ingestion |
|---|---|
| Corrosion damage | Severe rust or chemical attack compromising structural integrity |
| Poor priming | Sprayer loses prime or fails to draw fluid due to housing leak |
| Damaged threads | Threads for pickup tube or pump inlet are stripped or cross‑threaded |
Part number 704-054 is compatible with the following models. Always confirm fitment using the correct parts diagram for your exact model and revision.
| Brand / Model | Component |
|---|---|
| Airless Sprayer 330 | Foot Valve Housing |
| Airless Sprayer 340 International Model | Foot Valve Housing |
| Airless Sprayer 440 XC | Foot Valve Housing |
| Airless Sprayer 440I | Foot Valve Housing |
| Airless Sprayer 550 XC | Foot Valve Housing |
| Airless Sprayer 540IX | Foot Valve Housing |
| Airless Sprayer 640I | Foot Valve Housing |
| Airless Sprayer 640 GXC | Foot Valve Housing |
| Airless Sprayer 660 XC | Foot Valve Housing |
| Advantage 400 | Foot Valve Housing |
| Advantage 500 | Foot Valve Housing |
| Impact 340 | Foot Valve Housing |
| Impact 400 | Foot Valve Housing |
| Impact 410 | Foot Valve Housing |
| Impact X 410 | Foot Valve Housing |
| PowrLiner 1800M | Foot Valve Housing |
| PowrLiner 2800M | Foot Valve Housing |
| RentSpray 450 | Foot Valve Housing |
| RentSpray 600 | Foot Valve Housing |
| RentSpray 650 | Foot Valve Housing |
| RentSpray Plus | Foot Valve Housing |
When replacing the foot valve housing, these components are often inspected or replaced at the same time to ensure complete inlet system reliability.
Worn valve components can cause poor sealing even with a new housing.
A clogged or damaged screen restricts flow; replace if necessary.
Cracks or brittleness in the tube can cause air leaks; inspect and replace.
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