The Husqvarna 525825903 Gear Wheel Assembly is a genuine OEM component designed for the DM280 and DM340 concrete core drills. As a factory-original part, this assembly is manufactured to Husqvarna's exact specifications, ensuring correct gear engagement, torque transfer, and dimensional compatibility within the drill motor's drivetrain. DHS Equipment supplies this part to help keep your core drilling equipment running at full capability.
Key Features
- Genuine OEM Gear Tolerancing — Machined to Husqvarna's exact tooth profile and dimensional specifications, ensuring proper mesh and load transfer within the drivetrain assembly.
- Drop-In Drivetrain Replacement — Engineered to match the original mounting configuration of the DM280 and DM340, fitting directly into the existing gear housing without modification.
- Confirmed Fitment for DM280 and DM340 — Verified OEM compatibility for both Husqvarna concrete core drill models; cross-reference 525825903 against your parts diagram before ordering.
- Restores Full Torque Output — A worn or damaged gear wheel assembly causes power loss, erratic rotation, or complete drivetrain failure; replacing it with this OEM assembly restores the drill's rated performance.
- Complete Assembly Unit — Supplied as a full gear wheel assembly rather than individual components, simplifying the service process and ensuring all mating parts are replaced together.
The Gear Wheel Assembly is a core drivetrain component responsible for transmitting rotational force from the motor to the drill spindle. It converts and transfers torque through meshing gear teeth, allowing the core drill bit to turn with the power and consistency needed to cut through concrete, masonry, and similar materials. When gear teeth wear, chip, or strip — often from prolonged use or overloading — the assembly loses its ability to transfer torque effectively, resulting in slippage, vibration, or a complete loss of rotation. Replacing this assembly with the correct OEM part restores proper drivetrain integrity and ensures the machine operates as intended.
Part Details
| Part Number | 525825903 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Gear Wheel Assembly |
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.
