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Titan 0555904 Fluid Section Assy

$477.46
$568.40
Save 16%
Available to Order
Part #: 555904

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
Quantity
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Genuine OEM Part Fast Shipping Easy Returns

Complete Fluid Section Assembly for Titan 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.

Service Guidance: Always relieve system pressure before servicing. After installation, prime the sprayer slowly and verify smooth cycling and stable pressure before returning the unit to operation.

What it does and when to replace it

What the fluid section assembly does
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
When replacement is recommended
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

Compatibility

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)

Related parts commonly serviced together

Fluid section packing kits

Used for routine rebuilds or preventive maintenance.

Inlet valve kits

Replace worn valves to maintain prime and pressure stability.

Suction tube and strainer

Clogged inlets can mimic fluid section failure symptoms.

Frequently Asked Questions

It is a complete fluid section (pump lower) assembly for the Titan Advantage GPX 85.

Titan Advantage GPX 85.

Yes. The fluid section is supplied as a complete, factory-assembled unit.

Rebuild kits are available, but replacing the complete assembly is often faster when wear is extensive.

Confirm part number 0555904 in the Advantage GPX 85 parts diagram before ordering.

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