Part number 2369424 is a hydraulic piston designed to convert fluid pressure into mechanical force within the hydraulic drive system of compatible Elite and PowrLiner equipment. This precision‑ground piston moves within the hydraulic cylinder, transmitting power to the pump and enabling smooth, consistent material delivery. Replacing a worn, scored, or damaged hydraulic piston restores proper system pressure, eliminates bypass, and ensures reliable performance.
| Part Number | 2369424 |
|---|---|
| Part Description | Hydraulic Piston |
| Brand | Elite / PowrLiner |
| Fits | Elite 3000, 3500 72v; PowrLiner 3000, 3500s (Suffixed Unit), 3500 73v (Honda GXE) |
| Condition | New |
The 2369424 Hydraulic Piston is a critical component within the sealed hydraulic drive system of compatible Elite and PowrLiner sprayers and line stripers. It moves reciprocally within the hydraulic cylinder, driven by pressurized fluid, to transfer force to the paint pump. This action generates the high fluid pressures required for airless spraying.
Over time, hydraulic pistons can become scored, worn, or damaged due to contamination, fluid breakdown, or normal wear. A worn piston may allow fluid to bypass, resulting in loss of pressure, reduced performance, and inefficient operation. Replacing the piston restores proper sealing within the cylinder, eliminates bypass, and ensures the hydraulic system delivers full power to the pump.
| Force transmission | Converts hydraulic pressure into mechanical force to drive the pump |
|---|---|
| Pressure generation | Creates the high fluid pressure needed for airless spraying |
| System efficiency | Maintains proper sealing to prevent fluid bypass |
| Loss of pressure | System cannot maintain rated pressure |
|---|---|
| Visible wear / scoring | Grooves or scratches on piston surface |
| Contaminated fluid | Metal particles in hydraulic fluid indicating wear |
| Erratic operation | Pump speed fluctuates or system runs rough |
Part number 2369424 is compatible with the following equipment models. Always confirm fitment using the correct parts diagram for your exact model and serial number.
| Brand | Model | Component |
|---|---|---|
| Elite | 3000 | Hydraulic Piston |
| 3500 72v | Hydraulic Piston | |
| PowrLiner | 3000 | Hydraulic Piston |
| 3500s (Suffixed Unit) | Hydraulic Piston | |
| 3500 73v (Honda GXE) | Hydraulic Piston |
Hydraulic piston issues may involve associated components. When servicing the piston, these parts are commonly inspected or replaced at the same time.
Check for scoring or wear inside the cylinder bore.
Replace all seals, wipers, and O‑rings when replacing the piston.
Drain and replace hydraulic fluid and filter to remove contaminants.
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