The Titan 0555904 Fluid Section Assembly is a complete pump lower designed for the Titan Advantage GPX 85 airless sprayer. This assembly is responsible for drawing, pressurizing, and delivering coating material to the spray system, restoring proper pressure and consistent spray performance when the original fluid section is worn or damaged.
| Part Number | 0555904 |
|---|---|
| Product Type | Fluid Section Assembly (Pump Lower) |
| Condition | New OEM |
| Includes Components | Complete fluid section housing Piston rod and displacement assembly Inlet and outlet valve components Packings and seals (pre-installed) |
| Fits | Advantage GPX 85 |
The 0555904 Fluid Section Assembly is an OEM pump lower used on the Titan Advantage GPX 85 airless sprayer. It contains all critical internal components required to pressurize coating material and deliver consistent output to the spray hose and gun.
Over time, packings, valves, and internal wear surfaces inside the fluid section can degrade, leading to pressure loss, surging, or material bypass. Replacing the complete assembly restores original performance without the downtime associated with rebuilding individual components.
| Material pressurization | Generates high pressure required for airless spraying |
|---|---|
| One-way flow control | Uses inlet and outlet valves to regulate fluid movement |
| Consistent output | Maintains steady flow for even spray application |
| Pressure loss | Sprayer cannot maintain operating pressure |
|---|---|
| Surging or pulsing | Uneven spray caused by internal wear |
| Material bypass | Paint leaking past packings into the wet cup |
| High service time | Repeated rebuilds no longer restore performance |
Part 0555904 is compatible with the following Titan sprayer model. Always confirm fitment using the correct parts diagram for your exact unit and revision.
| Sprayer Model | Component |
|---|---|
| Titan Advantage GPX 85 | Fluid Section Assembly (0555904) |
Used for routine rebuilds or preventive maintenance.
Replace worn valves to maintain prime and pressure stability.
Clogged inlets can mimic fluid section failure symptoms.
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