The Husqvarna 531118290 Coupling is a genuine OEM component designed for the PP455E power pack and the WS482HF, WS442, and WS482 wall saws. As a direct Husqvarna OEM part, it meets the exact specifications required for dependable power transmission between connected components. Cross-reference part number 531118290 against your parts diagram to confirm fitment before ordering. DHS Equipment provides this part to help keep your wall saw system and power pack running at full capacity.
Key Features
- Genuine OEM Torque Integrity — manufactured to Husqvarna's exact dimensional and material specifications, ensuring the coupling transmits power without slippage, vibration, or misalignment that can wear downstream components prematurely.
- Direct Drop-In Replacement — engineered to connect and seat exactly as the original, requiring no modification to mating shafts or housings on compatible machines.
- Broad System Compatibility — fits the PP455E power pack alongside the WS482HF, WS442, and WS482 wall saws, covering a wide range of Husqvarna hydraulic wall saw configurations.
- Restored Drive Connection — a worn or damaged coupling can cause erratic power delivery, vibration, and accelerated wear on connected drive components; this replacement restores smooth, consistent torque transfer.
- Correct Interface for Hydraulic Wall Saw Systems — wall saw and power pack couplings must maintain secure hydraulic and mechanical interfaces under sustained load; using the correct OEM part protects the integrity of the entire drive system.
A coupling serves as the mechanical link between the power source and the driven component, transferring rotational force while accommodating minor shaft misalignment and absorbing vibration. In a wall saw system paired with a power pack like the PP455E, the coupling must maintain a precise, secure connection under continuous load to deliver consistent cutting performance. When a coupling wears, cracks, or fails, the result is lost power transfer, increased vibration, and potential damage to connected shafts and drive components — making timely replacement essential to keeping the system operating correctly.
Part Details
| Part Number | 531118290 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Coupling |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Pack | PP455E |
| Wall Saw | WS482HF |
| Wall Saw | WS442 |
| 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.
