The Husqvarna 581086804 2 Brushes With Popout Springs 110V is a genuine OEM replacement designed for the DM280 and DM340 concrete core drills. This carbon brush set is sourced directly from Husqvarna, ensuring the correct grade, geometry, and spring tension for the motor in these machines. Confirm part number 581086804 against your parts diagram before ordering to make sure this is the right set for your unit. DHS Equipment supplies this part to help keep your core drill running at full capacity.
Key Features
- OEM Carbon Grade and Spring Tension — genuine Husqvarna brushes are manufactured to the exact carbon compound and popout spring specification required for consistent current transfer in the 110V motor.
- Integrated Popout Spring Design — the pre-loaded popout springs signal brush wear automatically, making inspection straightforward and helping prevent motor damage from fully depleted brushes.
- Direct Drop-In Replacement — this set installs directly into the brush holders of the DM280 and DM340 without machining or adaptation, restoring correct brush-to-commutator contact immediately.
- Matched to DM280 and DM340 Core Drills — engineered specifically for these 110V concrete core drill motors, so brush dimensions, resistance characteristics, and spring force align with the original design.
- Motor Protection at the Wear Interface — worn or incorrectly sized brushes cause arcing, commutator scoring, and eventual motor failure; replacing with the correct OEM set preserves commutator condition and extends motor service life.
Carbon brushes are the contact points that transfer electrical current from the stationary motor housing to the rotating commutator inside the motor. In a core drill motor like those used in the DM280 and DM340, the brushes wear gradually with use and must be replaced before they reach the end of their service length — failure to do so leads to arcing, heat buildup, and irreversible commutator damage. The popout spring mechanism in this set provides a built-in wear indicator: once the brush is depleted to its minimum length, the spring ejects to signal that replacement is due, protecting the motor from the consequences of running on worn-out brushes.
Part Details
| Part Number | 581086804 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | 2 Brushes With Popout Springs 110V |
Compatibility & Fitment
| Name | Model |
|---|---|
| Concrete Core Drill | DM280 |
| Concrete Core Drill | DM340 |
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.
