The Husqvarna 577600604 Muffler is a genuine OEM component designed for the FS513, FS520, and FS524 floor saws. As a direct Husqvarna OEM part, it is manufactured to the same specification as the original unit installed at the factory, ensuring correct exhaust routing, thermal performance, and engine back-pressure balance for these walk-behind slab saws. DHS Equipment supplies this part to help keep your floor saw operating at full capacity on the job.
Key Features
- OEM Exhaust Specification — manufactured to Husqvarna's exact exhaust flow and back-pressure requirements, maintaining engine performance as designed for the FS-series floor saws.
- Direct Bolt-On Replacement — matches the original mounting configuration on the FS513, FS520, and FS524, so installation follows the standard service procedure without modification.
- FS-Series Floor Saw Compatibility — verified fitment for the FS513, FS520, and FS524 walk-behind floor saws; cross-reference 577600604 against your parts diagram before ordering.
- Restored Engine Efficiency — a correctly fitted muffler maintains the designed exhaust scavenging cycle, protecting power output and fuel efficiency that a cracked or deteriorated unit would otherwise compromise.
- Emissions and Noise Compliance — genuine OEM construction ensures the muffler continues to meet the sound attenuation and exhaust emissions requirements the machine was certified to at the time of manufacture.
The muffler directs hot exhaust gases away from the engine and operator while dampening combustion noise to acceptable levels. It also plays a direct role in engine performance — the internal baffling is tuned to maintain the correct level of back-pressure for the engine's power cycle, meaning a damaged or incorrectly fitted muffler can reduce power output and increase fuel consumption. When a muffler cracks, corrodes, or loses its sealing integrity, exhaust gases can escape near the operator or heat sensitive components, making prompt replacement with a correctly specified part essential for both performance and safe operation.
For fitment questions or to confirm that part number this part is correct for your machine's serial range, contact DHS Equipment — our team is ready to assist.
Part Details
| Part Number | 577600604 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Muffler |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Saw | FS513 |
| Floor Saw | FS520 |
| Floor Saw | FS524 |
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.
