

Part 0509520 is a connecting pin used in the pump drive linkage of Advantage and SprayTech GPX series airless paint sprayers. The pin secures the mechanical connection between moving pump components, allowing proper transfer of motion during operation.
Components included:
| Part Number | 0509520 |
|---|---|
| Part Description | Connecting Pin |
| Function | Mechanical linkage / motion transfer |
| Fits | Advantage & SprayTech GPX Series (130,165,220) |
| Condition | New |
The 0509520 Connecting Pin is a mechanical fastener used within the pump drive assembly of Advantage and SprayTech GPX airless paint sprayers. It secures moving components together so motion from the drive system is correctly transferred to the fluid section.
A worn, bent, or damaged connecting pin can cause excessive play in the drive linkage, abnormal noise, or reduced pump efficiency. Replacing the pin restores proper alignment and dependable pump operation.
| Motion transfer | Links drive components to the pump mechanism |
|---|---|
| Alignment | Keeps moving parts correctly positioned |
| Operational stability | Supports smooth pump cycling |
| Excessive play | Loose movement in the linkage |
|---|---|
| Visible wear | Grooving, bending, or deformation |
| Noise or vibration | Abnormal sounds during operation |
| Routine service | During pump or drive system maintenance |
Part 0509520 is compatible with the following airless paint sprayers. Always verify linkage configuration using the correct parts diagram.
| Sprayer Model | Component |
|---|---|
| Advantage GPX 130 | Connecting pin |
| Advantage GPX 165 | Connecting pin |
| Advantage GPX 220 | Connecting pin |
| SprayTech GPX 130 | Connecting pin |
| SprayTech GPX 165 | Connecting pin |
| SprayTech GPX 220 | Connecting pin |
| SprayTech GPX 1250 | Connecting pin |
| SprayTech GPX 1600 | Connecting pin |