

Part 0509651 is a down tube that provides fluid transfer from the sprayer pump to the gun or hose connection. It serves as a critical pathway for paint or coating materials under high pressure. This component ensures proper material flow and pressure delivery in compatible sprayer systems.
| Part Number | 0509651 |
|---|---|
| Part Description | Down Tube |
| Brand | SprayTech |
| Fits | Advantage GPX 165, SprayTech GPX 165, SprayTech GPX1600. |
| Condition | New |
Part 0509651 is a down tube that transfers paint or coating material from the pump assembly to the outlet connections on compatible sprayer models. This component handles high-pressure fluid flow and provides a secure connection point between the pump and the delivery system.
A damaged, cracked, or leaking down tube can result in pressure loss, fluid leaks, or inefficient material transfer. Replacing the down tube restores proper fluid pathway integrity and ensures consistent sprayer performance.
| Fluid transfer pathway | Carries material from pump to outlet connections |
|---|---|
| Pressure handling | Withstands high operating pressures during spraying |
| Connection interface | Provides mounting point for hoses or manifolds |
| Visible cracks | Cracks or fractures in the tube body |
|---|---|
| Thread damage | Stripped or damaged connection threads |
| Leakage | Fluid leaks from tube or connection points |
| Corrosion | Excessive corrosion compromising tube integrity |
Part 0509651 is compatible with specific SprayTech GPX series sprayer models. Always confirm fitment using the correct parts diagram for your exact model and revision.
| Model | Component |
|---|---|
| Advantage GPX 165 | Down Tube |
| SprayTech GPX 165 | Down Tube |
| SprayTech GPX1600 | Down Tube |
Down tubes are often replaced alongside other fluid transfer components. When servicing this tube, these parts are commonly inspected at the same time.
Connectors that attach the down tube to the pump assembly.
Components that distribute fluid from the down tube.
Sealants used on threaded connections to prevent leaks.