The Husqvarna 594384901 Diaphragm is a genuine OEM component designed for the BV20G and BV20H concrete screeds. Sourced directly from Husqvarna, this part meets the exact material and dimensional specifications required for proper screed operation. This diaphragm is a direct replacement that installs without modification, restoring full function to your vibratory screed. DHS Equipment supplies this part to help keep your equipment running through demanding concrete finishing work.
Key Features
- Genuine OEM Material Specification — Manufactured to Husqvarna's exact compound and thickness requirements, ensuring the diaphragm flexes correctly under operational pressure without premature fatigue or cracking.
- Direct Drop-In Replacement — Engineered to match the original mounting configuration on the BV20G and BV20H, allowing straightforward installation using standard service procedures.
- Confirmed Fitment for BV20 Series Screeds — Verified for the BV20G and BV20H vibratory screeds, so you can order with confidence that part number this part is the correct component for your machine.
- Sustained Vibration Transfer — A properly functioning diaphragm maintains consistent energy transmission within the screed system, delivering the uniform surface finish that wet concrete placement demands.
- Fuel System Integrity — As a component within the fuel delivery circuit, a correctly seated diaphragm prevents fuel leaks and maintains proper mixture delivery, supporting safe and compliant machine operation.
The diaphragm is a flexible membrane within the carburetor's fuel pump circuit, responsible for drawing fuel from the tank and delivering a consistent supply to the engine. As it flexes with each pressure cycle, it maintains the steady fuel flow the engine needs to sustain the vibration output the screed relies on. When the diaphragm hardens, cracks, or develops pinholes, fuel delivery becomes erratic, causing the engine to run poorly, lose power, or fail to start — directly impacting finishing quality and work throughput.
Part Details
| Part Number | 594384901 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Diaphragm |
Compatibility & Fitment
| Name | Model |
|---|---|
| Concrete Screed | BV20G |
| Concrete Screed | BV20H |
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.
