The Husqvarna 539990118 Washer is a genuine OEM component designed for a wide range of Husqvarna Construction equipment, including PP-series power packs, FS-series floor saws, and MS-series tile and masonry saws. As a direct OEM replacement, this washer is manufactured to Husqvarna's exact specifications, ensuring proper load distribution and secure fastener retention across every compatible machine. Cross-reference part number 539990118 against your parts diagram to confirm fitment for your specific model. DHS Equipment supplies this part to help keep your equipment running at full capacity.
Key Features
- Genuine OEM Construction — Manufactured to Husqvarna's exact dimensional and material specifications, delivering the correct bearing surface and load distribution this washer must provide in service.
- Broad Model Compatibility — Fits PP-series power packs including the PP518 and PP2525DS, FS-series floor saws including the FS4800D, FS6600D, FS6800D, FS8400D, and FS3500G, plus MS-series tile and masonry saws including the MS510 and MS610.
- Direct Drop-In Replacement — Matches the original geometry and hole pattern for straightforward installation without reworking surrounding hardware or fastener assemblies.
- Protects Critical Fastener Interfaces — Properly distributes clamping loads to prevent bolt pull-through, surface damage, and fastener loosening under the vibration and stress loads typical of cutting and compaction equipment.
- Verified Part Number — Ordering by part number this part ensures you receive the correct washer for your machine — eliminating guesswork when sourcing from a multi-model parts catalog.
A washer serves as a load-spreading interface between a fastener — such as a bolt or nut — and the surface it clamps against. By distributing the clamping force over a wider area, it prevents the fastener from pulling into or damaging the mating surface, and helps maintain consistent tension even under vibration. On power packs, floor saws, and masonry saws, where engine vibration and blade forces are constant, a correctly specified washer is essential for keeping assemblies securely torqued. When a washer deforms, corrodes, or goes missing, fasteners can work loose, leading to component misalignment or accelerated wear on surrounding hardware.
Part Details
| Part Number | 539990118 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Washer |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Pack | PP2525DS |
| Power Pack | PP3030 |
| Floor Saw | FS3500G |
| Floor Saw | FS4800D |
| Floor Saw | FS6600D |
| Floor Saw | FS6800D |
| Floor Saw | FS8400D |
| Tile & Masonry Saw | MS510 |
| Floor Saw | Pro65G |
| Floor Saw | FS3500E |
| Floor Saw | RS8500D |
| Tile & Masonry Saw | MS610 |
| Floor Saw | FS4600G |
| Power Pack | PP2525DTR |
| Power Pack | PP518 |
| Tile & Masonry Saw | MS510G |
| Floor Saw | PRO65G |
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.
