

Impact / RentSpray part 0522018 is a capacitor assembly designed to provide starting and running torque for the electric motor on compatible sprayers. It stores electrical energy and releases it to help the motor start and run efficiently. Replacing a failed or weak capacitor restores proper motor operation, eliminates humming or slow-starting issues, and prevents motor damage.
| Part Number | 0522018 |
|---|---|
| Part Description | Capacitor Assembly |
| Brand | Impact / RentSpray |
| Fits | Impact 440; RentSpray 500 |
| Condition | New |
The Impact / RentSpray 0522018 Capacitor Assembly is an electrical component used in the motor start and run circuits of compatible sprayers. It stores and releases electrical energy to provide the necessary phase shift and torque for the motor to start smoothly and run efficiently. This assembly typically includes the capacitor housed in a protective casing with mounting brackets and electrical connections.
Over time, capacitors can fail due to age, heat, voltage spikes, or repeated charge/discharge cycles. Symptoms of a failing capacitor include the motor humming but not starting, slow starting, reduced power during operation, or the motor tripping circuit breakers. A failed capacitor can also cause motor overheating and premature failure. Replacing with genuine part 0522018 restores proper motor operation and extends equipment life.
| Motor starting | Provides initial torque to start the motor |
|---|---|
| Running efficiency | Helps maintain proper phase angle for efficient operation |
| Power factor correction | Improves motor performance and reduces current draw |
| Motor won't start | Motor hums but does not rotate |
|---|---|
| Slow starting | Motor takes longer than normal to reach speed |
| Weak operation | Motor runs but lacks power under load |
| Visible damage | Bulging, leaking, or burnt smell from capacitor |
Part 0522018 is designed for the following models. Always confirm fitment with your equipment's parts manual.
| Model | Description |
|---|---|
| Impact 440 | Airless Sprayer |
| RentSpray 500 | Airless Sprayer |
When replacing the capacitor assembly, inspect these associated components to ensure a complete repair.
Check for bearing wear or winding damage; replace if faulty.
Ensure relay contacts are clean and functioning properly.
Inspect for corrosion, loose terminals, or damaged insulation.