The Husqvarna 579474501 Relay is a genuine OEM component designed for the PP455E power pack. As a direct Husqvarna OEM part, it is built to the exact electrical specifications required for proper operation of the PP455E. DHS Equipment supplies this part to help keep your equipment running at full capacity. Cross-reference part number 579474501 against your parts diagram to confirm fitment before ordering.
Key Features
- OEM Electrical Specification — Manufactured to Husqvarna's exact switching capacity and coil resistance ratings, ensuring the relay operates within the PP455E's electrical system as originally engineered.
- Direct Drop-In Replacement — Matches the original connector configuration and mounting footprint of the PP455E, allowing straightforward installation without circuit modification.
- PP455E Power Pack Fitment — Confirmed fit for the PP455E power pack, the hydraulic power source used to drive compatible Husqvarna construction tools on the jobsite.
- Restored Switching Control — A correctly functioning relay ensures that electrical circuits engage and disengage cleanly, maintaining consistent power delivery and control response from the PP455E.
- Electrical Safety Integrity — Using the correct OEM relay protects the wider electrical system from erratic switching behavior, voltage spikes, or unintended circuit activation that a mismatched component can cause.
A relay is an electrically operated switch that controls one circuit by opening or closing contacts in response to a signal from another circuit. In the PP455E power pack, the relay manages the activation and deactivation of key electrical functions, allowing the control system to switch higher-current loads safely using a low-current signal. When a relay fails, the affected circuit may not energize at all, may stay permanently engaged, or may operate intermittently — any of which can disrupt the performance of the power pack and the tools it drives. Replacing a faulty relay with the correct OEM part restores predictable, stable switching behavior.
Part Details
| Part Number | 579474501 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Relay |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Pack | PP455E |
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.
