The Husqvarna 542169157 O-Ring is a genuine OEM sealing component designed for the FS3500G, FS4800D, FS6600D, FS7000DL, and FS8400D floor saws. As a factory-original part, it is manufactured to the exact material grade and dimensional tolerances required for a reliable, leak-free seal in your machine. This O-Ring is a direct replacement for the original, confirming compatibility across the FS-series floor saw lineup. DHS Equipment supplies this part to help keep your equipment running at full capacity.
Key Features
- OEM Material Specification — Manufactured to Husqvarna's exact compound and durometer rating, ensuring the correct compression set and resistance to hydraulic fluids, water, and operating temperatures found in floor saw applications.
- Exact-Dimension Replacement — Matches the original O-Ring's inner diameter, outer diameter, and cross-section precisely, so it seats fully in the groove without trimming, stretching, or shimming.
- Broad FS-Series Compatibility — Fits the FS3500G, FS4800D, FS6600D, FS7000DL, and FS8400D floor saws. Cross-reference part number 542169157 against your parts diagram to confirm the correct application point before installation.
- Leak Prevention — A correctly seated O-Ring maintains a positive seal under pressure, preventing fluid or coolant loss that would otherwise lead to overheating, contamination, or loss of hydraulic function in the saw.
- Fluid System Integrity — In floor saw applications, a degraded or failed O-Ring can allow cutting water or hydraulic fluid to migrate into adjacent components, making prompt replacement critical to protecting the broader assembly.
An O-Ring is a loop-shaped sealing element that sits in a machined groove between two mating surfaces or around a moving shaft, forming a pressure-tight barrier that prevents fluid or air from passing through the joint. In a floor saw like the FS-series, O-Rings appear at hydraulic connections, water-feed ports, and pump interfaces where maintaining a clean, pressurized flow is essential to blade cooling and drive performance. When an O-Ring becomes worn, compressed flat, or chemically degraded, it loses its ability to seal, resulting in visible leaks, pressure drop, or contamination of nearby components — all of which affect the saw's cutting consistency and can accelerate wear on surrounding parts.
Part Details
| Part Number | 542169157 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | O-Ring |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Saw | FS3500G |
| Floor Saw | FS4800D |
| Floor Saw | FS6600D |
| Floor Saw | FS7000DL |
| Floor Saw | FS8400D |
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.
