Part number 2401832 is a D26 piston designed to convert fluid pressure into mechanical force within the pump assembly of compatible PowrLiner and Elite equipment. This precision‑ground component moves reciprocally within the cylinder, drawing material in and pushing it out under high pressure for consistent spray application. Replacing a worn, scored, or damaged D26 piston restores pump efficiency, eliminates pressure loss, and ensures reliable performance.
| Part Number | 2401832 |
|---|---|
| Part Description | Piston D26 |
| Brand | PowrLiner / Elite |
| Fits | PowrLiner 4500, 5500; Elite 5500 |
| Condition | New |
The 2401832 D26 Piston is a critical component within the pump assembly of compatible PowrLiner and Elite line stripers and sprayers. It moves back and forth within the pump cylinder, creating suction that draws material into the pump and then pressurizing it for delivery to the spray gun. The piston's precision‑ground surface ensures a tight seal within the cylinder, maximizing efficiency and pressure generation.
Over time, pistons can become scored, worn, or damaged due to contamination, inadequate lubrication, or normal wear. A worn piston can allow fluid to bypass, resulting in loss of pressure, reduced output, and poor atomization. Replacing the D26 piston restores the pump's ability to generate full pressure, ensuring consistent material delivery and reliable performance. For optimal results, the piston should be replaced alongside related wear components such as packings and seals.
| Pressure generation | Moves within the cylinder to create high fluid pressure |
|---|---|
| Material pumping | Draws material in and pushes it out during each stroke |
| Sealing | Works with packings to prevent fluid bypass |
| Loss of pressure | System cannot maintain rated pressure |
|---|---|
| Visible wear / scoring | Grooves or scratches on piston surface |
| Reduced output | Pump delivers less material per stroke |
| During pump overhaul | Always replace piston when rebuilding pump |
Part number 2401832 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 |
|---|---|---|
| PowrLiner | 4500 | Piston D26 |
| 5500 | Piston D26 | |
| Elite | 5500 | Piston D26 |
Piston wear often involves associated components. When servicing the D26 piston, these parts are commonly inspected or replaced at the same time.
Replace packings to ensure a proper seal and prevent bypass.
Inspect the cylinder bore for scoring or wear; replace if damaged.
Check valve operation and replace if worn or sticking.
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