The Husqvarna 501388316 Muffler Fs9900 Tier3 Black is a genuine OEM replacement component designed for the FS8400 floor saw. Sourced directly from Husqvarna, this muffler is manufactured to meet Tier 3 emissions standards and is built to match the original exhaust configuration of the machine exactly. DHS Equipment supplies this part to help keep your floor saw operating at the performance and compliance level it was designed for.
Key Features
- Tier 3 Emissions Compliance — engineered to meet Tier 3 exhaust emission requirements, keeping the FS8400 floor saw legally compliant on regulated worksites.
- OEM Exhaust Geometry Match — this muffler replicates the original outlet routing, flange pattern, and mounting interface, so it installs directly in place of the worn or damaged unit without modification.
- FS8400 Floor Saw Fitment — confirmed genuine OEM part for the FS8400 floor saw; cross-reference 501388316 against your parts diagram to verify the correct application before ordering.
- Heat and Vibration Resistance — constructed to withstand the high exhaust temperatures and continuous vibration generated during concrete and asphalt cutting operations.
- Correct Sound Attenuation — a properly functioning muffler maintains designed noise levels; a cracked or degraded unit increases operator noise exposure and may violate site noise regulations.
- Exhaust System Integrity — using a genuine Husqvarna muffler ensures the exhaust path remains sealed and properly routed, protecting the operator and nearby workers from exhaust gas exposure.
The muffler is a critical component in the engine exhaust system, responsible for channeling combustion gases away from the engine and reducing exhaust noise to acceptable operating levels. On a floor saw like the FS8400, the muffler also plays a direct role in maintaining Tier 3 emissions compliance — a requirement on many commercial and municipal job sites. When a muffler cracks, corrodes, or loses its seal, exhaust noise increases sharply, emissions rise above compliant levels, and hot gases can escape in unintended directions, creating a safety hazard for the operator and surrounding crew.
Part Details
| Part Number | 501388316 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Muffler Fs9900 Tier3 Black |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Saw | FS8400 |
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.
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