

Leeson part 506-255 is a rectifier designed to convert alternating current to direct current for compatible sprayer motor systems. This component ensures proper power delivery to the motor drive system, enabling consistent operation under load. When the rectifier fails, motors may exhibit reduced performance, erratic operation, or complete failure to start.
| Part Number | 506-255 |
|---|---|
| Part Description | Rectifier Leeson |
| Brand | Leeson |
| Fits | PowrTwin TM 8900 XLT, 12000GHD, 12000GH, 12000GH Insert, 12000 XLT, 12000 XLT DI, 12000 Plus DI service, 12000 GHD, 8900GH, 6900GH, 6900 XLT, 6900 XLT DI, 6900 & 12000 Plus DI, 4900GH, 4900 XLT, 4900, 6900, 8900, 12000 Plus; PowrTex 6900SF, 12000SV, 6900SF, 12000SV 0528919D; PowrLiner 6950_1, 6950, 5000, 4950, 4000, 4955, 6955, 8955 |
| Condition | New |
The Leeson 506-255 rectifier is an electrical component that converts alternating current input into direct current output for the motor drive systems on compatible sprayers and stripers. This conversion is essential for proper motor operation, as many sprayer motors require DC power to achieve consistent speed control and reliable torque output under varying load conditions. The rectifier assembly consists of diode-based circuitry that allows current to flow in only one direction, effectively transforming the incoming AC power into usable DC power for the motor control system. When functioning correctly, the rectifier enables smooth motor startup, stable operation during spraying and striping applications, and proper response to pressure demands. Over time, rectifiers can fail due to thermal stress, voltage spikes, moisture exposure, or normal component aging. A failing rectifier may produce symptoms such as intermittent motor operation, reduced spraying pressure, overheating components, or complete system failure. Replacing a failed rectifier with this genuine Leeson component restores proper power conversion and motor performance. This replacement rectifier meets original equipment specifications for fit, electrical characteristics, and durability.
| AC to DC conversion | Converts alternating current input to direct current for motor operation |
|---|---|
| Motor speed control | Enables consistent motor performance and response to pressure demands |
| Power regulation | Provides stable power delivery to drive system under varying loads |
| Intermittent operation | Motor starts and stops unexpectedly or runs erratically |
|---|---|
| No motor response | Motor fails to start despite proper input power and switch function |
| Reduced performance | Loss of spraying pressure or motor struggles under normal load |
| Overheating components | Rectifier or nearby components show heat damage or discoloration |
Leeson part 506-255 is compatible with the following PowrTwin, PowrTex, and PowrLiner systems. Always confirm fitment using the correct parts diagram for your exact model and revision.
| Series | Models |
|---|---|
| PowrTwin | TM 8900 XLT, 12000GHD, 12000GH, 12000GH Insert, 12000 XLT, 12000 XLT DI, 12000 Plus DI service, 12000 GHD, 8900GH, 6900GH, 6900 XLT, 6900 XLT DI, 6900 & 12000 Plus DI, 4900GH, 4900 XLT, 4900, 6900, 8900, 12000 Plus |
| PowrTex | 6900SF, 12000SV, 6900SF & 12000SV 0528919D |
| PowrLiner | 6950_1, 6950, 5000, 4950, 4000, 4955, 6955, 8955 |
Motor drive system performance depends on multiple electrical components. When servicing the rectifier, these parts are commonly inspected or replaced at the same time.
Regulates power delivery to motor and interfaces with rectifier output.
Works with rectifier to smooth DC output and maintain stable voltage.
Loose or corroded connections can cause voltage drop and erratic operation.