The Husqvarna 503266003 Coupler is a genuine OEM replacement designed for a wide range of Husqvarna K-series power cutters and DM-series concrete core drills. As an OEM component, this coupler is manufactured to the exact tolerances required by Husqvarna, ensuring a direct, no-compromise fit across compatible machines including the K770, K970, K1PACE, DM340, DM540i, and DMS240, among others. Cross-reference part number 503266003 against your parts diagram to confirm compatibility with your specific model before ordering. DHS Equipment supplies this part to help keep your equipment running at full capacity.
Key Features
- OEM-Matched Tolerancing — Manufactured to Husqvarna's exact dimensional specifications, ensuring the coupling interface engages correctly under load without slippage or misalignment.
- Direct Drop-In Replacement — Engineered to install in the same position and orientation as the original, using the same mounting interface for a clean, straightforward swap.
- Broad Model Compatibility — Fits a wide range of Husqvarna power cutters (including K760, K770, K970, K1PACE, and K1270) and concrete core drills (including DM230, DM340, DM540i, and DMS240).
- Restored Power Transfer — A properly functioning coupler maintains the mechanical link between drive components; a worn or damaged coupler causes vibration, slippage, and loss of output at the cutting or drilling head.
- Genuine Husqvarna Part — Supplied as an authentic OEM component under part number 503266003, backed by Husqvarna's construction equipment parts program.
A coupler is the mechanical connector that transfers rotational force from the drive source to the working attachment — in this case, between the power unit and the cutting or drilling head. When the coupler is intact and correctly seated, torque is transmitted smoothly and efficiently, allowing the blade or core bit to perform as intended. As the coupler wears or becomes damaged, the connection becomes inconsistent, leading to vibration, reduced cutting or drilling power, and potential damage to surrounding drive components if left unaddressed.
Part Details
| Part Number | 503266003 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Coupler |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Cutter | K7000 |
| Concrete Core Drill | DM280 |
| Concrete Core Drill | DM540i |
| Concrete Core Drill | DM540iKIT |
| Concrete Core Drill | DMS240 |
| Concrete Core Drill | DM200 |
| Concrete Core Drill | DM230 |
| Concrete Core Drill | DM340 |
| Concrete Core Drill | DM650 |
| Power Cutter | K3600 |
| Power Cutter | K4000 |
| Power Cutter | K540i |
| Power Cutter | K760II |
| Power Cutter | K760 |
| Power Cutter | K770 |
| Power Cutter | K960 |
| Power Cutter | K970 |
| Power Cutter | K1PACE |
| Power Cutter | K1270 |
| Power Cutter | K3000 |
| Concrete Core Drill | DMS280 |
| Power Cutter | K650 |
| Power Cutter | K750 |
| Power Cutter | K1250 |
| Power Cutter | K2500 |
| Power Cutter | K40 |
| Power Cutter | K1260 |
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.
