The Husqvarna 521978218 Radiator Replacement Kit is a genuine OEM component designed for the FS8400 floor saw. Sourced directly from Husqvarna, this kit delivers an exact-match replacement for the machine's cooling system radiator, ensuring restored thermal performance without the guesswork of aftermarket fitment. DHS Equipment supplies this part to help keep your equipment running at full capacity on the job.
Key Features
- Genuine OEM Cooling System Integrity — Manufactured to Husqvarna's specifications, this kit maintains the correct coolant flow capacity and thermal dissipation rating for the FS8400's engine cooling demands.
- Direct-Match Replacement — Engineered to align with the existing mounting points, hose connections, and core dimensions of the original radiator assembly, allowing straightforward installation.
- Purpose-Built for the FS8400 Floor Saw — Confirmed fitment for the FS8400 floor saw, so you can cross-reference part number 521978218 against your parts diagram with confidence.
- Restored Engine Temperature Control — A fully functioning radiator keeps operating temperatures within the engine's designed range, protecting internal components during extended cutting sessions.
- Complete Kit Format — Supplied as a replacement kit rather than individual components, reducing the number of separate parts needed to complete the repair and simplifying the service process.
The radiator is the core of the engine's liquid cooling system, transferring heat away from the coolant as it circulates through the engine block. When the radiator becomes damaged, corroded, or blocked, the engine loses its ability to shed heat efficiently, leading to overheating that can cause significant internal engine damage and unplanned downtime on the job. Replacing a compromised radiator with the correct OEM unit restores the cooling circuit to its original performance specification, protecting the engine during the high-load demands of concrete and asphalt cutting.
Part Details
| Part Number | 521978218 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Radiator Replacement Kit |
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.
