The Husqvarna 506258801 Diaphragm is a genuine OEM replacement designed for K950, K650, K700, and K950Rescue power cutters. As an authentic Husqvarna component, this diaphragm is manufactured to the exact material grade and dimensional tolerances required for proper carburetor operation in these machines. DHS Equipment supplies this part to help keep your power cutter running at full capacity. Cross-reference part number 506258801 against your parts diagram to confirm fitment before ordering.
Key Features
- OEM-Grade Flexible Material — Manufactured from fuel-resistant material engineered to Husqvarna's exact thickness and flexibility specifications, ensuring consistent carburetor response under demanding cut conditions.
- Direct Carburetor Fit — Engineered to seat and seal correctly within the carburetor housing with no trimming or modification, preserving the integrity of the fuel metering circuit.
- Broad Power Cutter Compatibility — A confirmed fit for K650, K700, K950, and K950Rescue power cutters, covering a wide range of Husqvarna's professional handheld cutting lineup.
- Restored Fuel Delivery Performance — A fresh diaphragm restores proper fuel metering and throttle response, eliminating the hard starting, bogging, and stalling that a stiffened or cracked diaphragm causes.
- Fuel System Integrity — Correct diaphragm condition is essential for safe, predictable engine behavior; a failed diaphragm can allow uncontrolled fuel delivery, affecting both performance and operator safety.
The diaphragm is a thin, flexible membrane inside the carburetor that pulses in response to engine crankcase pressure, drawing fuel from the tank and regulating its flow into the engine. When it is functioning correctly, it maintains the precise fuel-to-air ratio the engine needs for smooth starts, steady idle, and full-throttle power. Over time, exposure to fuel and heat causes the diaphragm to harden, crack, or distort, leading to difficult starting, erratic idling, fuel starvation under load, or an engine that will not run at all. Replacing the diaphragm with a genuine OEM part like the part is one of the most effective ways to restore consistent carburetor performance.
Part Details
| Part Number | 506258801 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Diaphragm |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Cutter | K950 |
| Power Cutter | K650 |
| Power Cutter | K700 |
| Power Cutter | K950Rescue |
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.
