The 0552155A Fluid Section Assembly is an OEM pump lower assembly used on select Advantage and SprayTech airless sprayers. It is responsible for drawing, pressurizing, and delivering paint or coatings, forming the core of the sprayer’s fluid-handling system.
| Part Number | 0552155A |
|---|---|
| Product Type | Fluid Section Assembly |
| Function | Material Intake and High-Pressure Pumping |
| Condition | New OEM |
| Includes Components | Complete fluid section assembly Factory-installed packings and valves |
| Fits | Advantage 700; Advantage 1100; SprayTech Airless Advantage EPX2455; SprayTech Airless Advantage EPX2555 |
The 0552155A Fluid Section Assembly is a factory-specified pump lower used on Advantage 700, Advantage 1100, and SprayTech Advantage EPX2455 and EPX2555 airless sprayers. It generates the pressure required to atomize coatings and deliver consistent flow to the spray gun.
The fluid section is a primary wear component exposed to abrasive materials, pressure cycling, and continuous operation. Worn packings or valves can lead to pressure loss, surging, or material leakage. Replacing the entire assembly restores performance without requiring a full pump rebuild.
| Material intake | Draws paint from the supply into the pump |
|---|---|
| Pressure generation | Pressurizes material for airless atomization |
| Flow control | Delivers steady output to the spray system |
| Pressure loss | Unable to maintain consistent spraying pressure |
|---|---|
| Material leakage | Paint leaking past packings or seals |
| Surging output | Pulsing or uneven spray pattern |
| Major service | Replaced instead of rebuilding worn internals |
Part 0552155A is compatible with the following airless sprayers. Always confirm fitment using the correct parts diagram for your model and revision.
| Sprayer Model | Component |
|---|---|
| Advantage 700 | Fluid Section Assembly (0552155A) |
| Advantage 1100 | Fluid Section Assembly (0552155A) |
| SprayTech Airless Advantage EPX2455 | Fluid Section Assembly (0552155A) |
| SprayTech Airless Advantage EPX2555 | Fluid Section Assembly (0552155A) |
Used when rebuilding existing fluid sections.
Affect priming and material intake.
Maintain pressure and flow consistency.
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