The Husqvarna 503400607 Impulse Hose is a genuine OEM component designed for the K950 and K950Rescue power cutters. As an OEM part, it is manufactured to Husqvarna's exact specifications, ensuring the correct fit and function within the fuel delivery system of your machine. This Impulse Hose is a direct replacement for K950 and K950Rescue operators who need to restore consistent carburetor operation and reliable engine response. DHS Equipment supplies this part to help keep your equipment running at full capacity.
Key Features
- OEM Fuel System Integrity — manufactured to Husqvarna's exact material and dimensional specifications, ensuring the hose delivers the correct pulse signal to the carburetor without degradation or air leak
- Direct Drop-In Replacement — engineered to connect to the same ports and routing as the original, allowing straightforward installation without modification to surrounding components
- Compatible with K950 and K950Rescue Power Cutters — confirmed fitment for both the standard K950 and the K950Rescue variant; cross-reference 503400607 against your parts diagram before ordering
- Restored Carburetor Pulse Performance — a correctly functioning impulse hose maintains the pressure differential that drives fuel from the tank to the carburetor, keeping engine throttle response sharp and consistent under load
- Fuel System Safety Compliance — a cracked or deteriorated hose can allow fuel vapor to escape near the engine; replacing it with a genuine OEM part helps maintain a sealed, compliant fuel circuit on your power cutter
The impulse hose transfers pressure pulses generated by crankcase movement to the fuel pump or carburetor, creating the suction needed to draw fuel from the tank into the engine. Without a properly sealed and flexible hose, the pulse signal weakens, causing hard starting, erratic idling, or fuel starvation under load. When this hose cracks, stiffens, or loses its seal at either connection point, engine performance deteriorates rapidly — making timely replacement essential to keeping a K950 or K950Rescue power cutter operating at full output.
Part Details
| Part Number | 503400607 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Impulse Hose |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Cutter | K950 |
| 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.
