The Husqvarna 505246601 O-Ring is a genuine OEM sealing component designed for the WS442, WS440, WS440HF, WS482, and WS482HF wall saws. As a direct OEM replacement, this O-Ring is manufactured to Husqvarna's exact material and dimensional specifications, ensuring a proper compression seal every time. DHS Equipment supplies this part to help keep your wall saw running without leaks or pressure loss. Cross-reference part number 505246601 against your parts diagram to confirm fitment before ordering.
Key Features
- OEM-Grade Sealing Material — manufactured to Husqvarna's exact compound and hardness specifications, delivering the correct compression set for hydraulic and fluid-contact applications on wall saw systems.
- Direct Drop-In Replacement — dimensionally matched to the original groove seat, so this O-Ring seats cleanly without trimming or modification during reassembly.
- Broad Wall Saw Compatibility — fits the WS442, WS440, WS440HF, WS482, and WS482HF wall saws, covering both standard and high-frequency variants in the WS series.
- Leak Prevention at the Source — a correctly seated O-Ring maintains fluid pressure and prevents hydraulic or coolant leaks that can lead to loss of cutting power or internal component damage.
- System Integrity Under Pressure — wall saw hydraulic circuits operate under sustained pressure during deep track cuts; a compromised O-Ring puts the entire fluid circuit at risk, making timely replacement critical for safe operation.
An O-Ring is a precision-molded sealing loop that sits in a machined groove between two mating surfaces, creating a fluid-tight barrier when compressed. In a wall saw like the WS series, O-Rings are used throughout the hydraulic circuit and coolant passages to contain pressure and prevent leaks at joints, fittings, and component interfaces. When an O-Ring hardens, cracks, or takes a permanent set from heat and age, it loses its ability to seal — resulting in fluid weeping, pressure drop, or outright leakage that can compromise both cutting performance and machine longevity.
Part Details
| Part Number | 505246601 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | O-Ring |
Compatibility & Fitment
| Name | Model |
|---|---|
| Wall Saw | WS442 |
| Wall Saw | WS440HF |
| Wall Saw | WS482HF |
| Wall Saw | WS440 |
| Wall Saw | WS482 |
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.
