The Husqvarna 578373405 Printed Circuit Board is a genuine OEM component designed for the WS440HF wall saw. As a direct Husqvarna OEM part, this board is built to the exact electrical specifications of the original, ensuring correct signal routing, control response, and system compatibility. This is the right replacement when the WS440HF's onboard electronics require service, and DHS Equipment supplies this part to help keep your equipment running at full capacity.
Key Features
- OEM Electrical Specification — Manufactured to Husqvarna's exact circuit layout, component ratings, and output tolerances for the WS440HF — not a generic substitute.
- Drop-In Board Replacement — Engineered to match the original mounting points, connector positions, and pin configuration of the factory board for a straightforward swap.
- WS440HF Wall Saw Compatibility — Confirmed fitment for the WS440HF wall saw; cross-reference 578373405 against your parts diagram before ordering to verify your configuration.
- Restores Full Electronic Control — A failed or damaged board can cause erratic operation, loss of speed control, or a complete no-start condition; this replacement brings the control system back to correct function.
- Electrical Safety Compliance — Using a correctly rated OEM board maintains the intended protective functions of the WS440HF's electrical system, reducing the risk of uncontrolled behavior or downstream component damage.
The printed circuit board is the electronic brain of the WS440HF wall saw, managing power delivery, motor control signals, and operator input to coordinate machine operation. When the board develops a fault — whether from moisture ingress, vibration damage, or component failure — the saw may behave erratically, lose variable speed control, or fail to start altogether. Replacing it with a genuine Husqvarna part, part number 578373405, restores the correct electrical behavior and ensures all integrated safety and control functions operate as intended.
Part Details
| Part Number | 578373405 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Printed Circuit Board |
Compatibility & Fitment
| Name | Model |
|---|---|
| Wall Saw | WS440HF |
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.
