The Husqvarna 505491101 X390 Electric Motor Brush is a genuine OEM replacement designed for the X390 early entry saw. This component is sourced directly through Husqvarna's OEM parts program, ensuring it meets the exact specifications of the original installed part. DHS Equipment supplies this part to help keep your X390 running at full capacity when it matters most on the job.
Key Features
- Correct Carbon Composition — genuine OEM material grade matched to the X390 motor's voltage and current draw, so brush wear rate and conductivity stay within spec
- Drop-In Replacement — sized and shaped to seat directly into the original brush holders on the X390 electric motor with no alteration to the housing or retaining clips
- Purpose-Built for the X390 Early Entry Saw — cross-reference part number 505491101 against your X390 parts diagram to confirm fitment before installation
- Restored Motor Output — a fresh motor brush maintains consistent electrical contact with the commutator, preserving full blade speed and cutting power through green concrete
- Prevents Commutator Damage — running worn brushes risks scoring the commutator surface, turning a simple brush swap into a costly motor rebuild; replacing this part on schedule protects the broader motor assembly
Electric motor brushes are the small carbon blocks that carry electrical current from the stationary power supply to the rotating commutator inside the motor. As the motor runs, brushes gradually wear down through continuous contact with the spinning commutator surface. When brushes become too short, electrical contact becomes intermittent, causing the motor to lose power, run rough, or cut out entirely. On an early entry saw like the X390, where consistent blade speed is critical for clean joints in fresh concrete, a worn brush can compromise cut quality and slow the crew down. Replacing the X390 Electric Motor Brush at the first sign of reduced motor performance restores reliable contact and protects the commutator from damage that would require more extensive repairs.
Part Details
| Part Number | 505491101 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | X390 Electric Motor Brush |
Compatibility & Fitment
| Name | Model |
|---|---|
| Early Entry Saw | X390 |
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.
