The Husqvarna 593559301 Contactor is a genuine OEM electrical component designed for Husqvarna floor grinders, including the PG540, PG8S, PG6S, PG8XR, PG5, DuratiqT5, DuratiqT6, DuratiqX6, HTCT5, and related models. As a direct OEM replacement, this contactor is built to the same electrical specifications as the original, ensuring proper switching function and compatibility with your machine's motor control circuit. Cross-reference part number 593559301 against your parts diagram to confirm fitment before ordering. DHS Equipment supplies this part to help keep your floor grinding equipment running at full capacity.
Key Features
- OEM-Matched Electrical Specification — Built to Husqvarna's exact switching capacity and coil voltage ratings for floor grinder motor circuits, eliminating the guesswork of aftermarket substitutions.
- Direct Drop-In Replacement — Connects to existing wiring harness terminals without modification, restoring the control circuit to its original operating configuration.
- Broad Floor Grinder Compatibility — Fits a wide range of Husqvarna planetary floor grinders and surface prep machines, including the PG540, PG8S, PG6S, PG8XR, PG5, DuratiqT5, DuratiqT6, DuratiqX6, and HTCT5.
- Restored Motor Control — A functioning contactor is essential for reliable motor engagement; a failed unit causes intermittent starting issues or complete loss of drive, taking the grinder out of service.
- Electrical Safety Compliance — As a genuine OEM part, this contactor meets the original design standards for arc suppression and current handling, maintaining safe operation of the machine's electrical system.
A contactor is an electrically controlled switch that manages the flow of power to the grinder's drive motor. When the operator activates the machine, the contactor closes the circuit and allows current to reach the motor; when the machine is switched off, it opens the circuit and cuts power. Over time, the internal contacts can pit, burn, or weld together due to repeated switching under load, causing the motor to fail to start, run intermittently, or remain energized after shutdown. Replacing a worn contactor with the correct OEM unit restores reliable, safe motor control and prevents further damage to the machine's electrical system.
Part Details
| Part Number | 593559301 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Contactor |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Grinder | DuratiqT5 |
| Floor Grinder | DuratiqT6 |
| Floor Grinder | DuratiqX6 |
| Floor Grinder | HTCT5 |
| Floor Grinder | PG540 |
| Floor Grinder | PG8S |
| Floor Grinder | PG6S |
| Floor Grinder | PG8XR |
| Floor Grinder | DURATIQT5 |
| Floor Grinder | DURATIQT6 |
| Floor Grinder | PG5 |
| Floor Grinder | DURATIQX6 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
