The Husqvarna 506218501 Valve Seat is a genuine OEM component designed for the K3600 and K2500 power cutters. As an authentic Husqvarna part, it is manufactured to the same specifications as the original, ensuring a correct, secure fit within the engine's valve train. This Valve Seat is the right choice for restoring proper engine function to your K3600 or K2500 power cutter. DHS Equipment supplies this part to help keep your equipment running at peak performance.
Key Features
- OEM Material Integrity — Manufactured to Husqvarna's exact hardness and dimensional tolerances for proper valve sealing and heat transfer in high-cycle cutting applications.
- Correct Press-Fit Interface — Engineered to match the original bore geometry of the K3600 and K2500 cylinder head, seating cleanly without rework or machining.
- Confirmed Fitment — Directly compatible with K3600 and K2500 power cutters; cross-reference 506218501 against your parts diagram to verify position before installation.
- Restored Compression and Combustion Efficiency — A correctly seated valve seat maintains the tight seal between valve face and head, preserving compression and ensuring consistent power output under load.
- Fuel System Safety Compliance — A worn or damaged valve seat can cause compression loss, rough running, and unburned fuel entering the exhaust — replacing it with a genuine OEM part keeps the engine operating within design tolerances.
The valve seat is a precision insert pressed into the cylinder head that provides the hardened mating surface against which the engine valve closes. It forms a gas-tight seal during combustion, containing cylinder pressure and allowing heat from the valve to transfer into the head. When a valve seat becomes worn, pitted, or recessed, compression drops, the engine loses power, runs roughly, and may become difficult to start — symptoms that worsen quickly under the sustained, high-RPM demands of power cutter operation.
Part Details
| Part Number | 506218501 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Valve Seat |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Cutter | K3600 |
| Power Cutter | K2500 |
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.
