The Husqvarna 587174403 Capacitor is a genuine OEM replacement designed for HTC and PG series floor grinders, including the HTC280, HTC510, HTC450, PG280, PG450, PG510, and PG510I. As a direct OEM component, this capacitor is built to Husqvarna's exact electrical specifications, ensuring the correct capacitance rating and terminal configuration for a drop-in installation. DHS Equipment supplies this part to help keep your floor grinding equipment running at full capacity. Cross-reference part number 587174403 against your parts diagram to confirm fitment before ordering.
Key Features
- Correct Capacitance Rating — manufactured to Husqvarna's exact electrical specification, delivering the proper start and run performance your motor demands
- Direct OEM Replacement — matches the original terminal layout and housing dimensions for a straightforward swap with no adaptation
- Broad HTC and PG Series Fitment — compatible with HTC280, HTC510, HTC450, PG280, PG450, PG510, and PG510I floor grinders, covering a wide range of Husqvarna construction floor grinding equipment
- Motor Start and Run Reliability — a correctly rated capacitor keeps the drive motor starting cleanly and running at designed torque output; a failed capacitor causes hard starts, reduced motor power, or complete failure to start
- Electrical Safety Compliance — using the OEM-specified capacitor maintains correct circuit protection characteristics, reducing the risk of motor overload or wiring stress from an incorrectly rated substitute
A capacitor in a floor grinder provides the phase shift needed to start and sustain the electric drive motor. On start-up, it delivers the initial current surge that gets the motor spinning; during operation, a run capacitor maintains smooth torque and efficient power draw. When a capacitor degrades or fails, the motor may struggle to start, run hot, draw excessive current, or stop functioning entirely — all of which interrupt grinding operations and can cause secondary damage to the motor windings if left unaddressed.
Part Details
| Part Number | 587174403 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Capacitor |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Grinder | HTC280 |
| Floor Grinder | HTC510 |
| Floor Grinder | PG280 |
| Floor Grinder | PG450 |
| Floor Grinder | PG510I |
| Floor Grinder | HTC450 |
| Floor Grinder | PG510 |
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.
