The Husqvarna 505706901 Pump Arm Idler Pulley is a genuine OEM replacement designed for the GX4200 floor saw and SoffCut2500 and SoffCut5000 early entry saws. As a direct OEM component, this pulley is manufactured to Husqvarna's exact specifications, ensuring proper belt tension and drive system alignment right out of the box. Confirm part number 505706901 against your parts diagram before ordering to ensure correct application. DHS Equipment supplies this part to help keep your equipment running at full capacity.
Key Features
- OEM Belt Path Geometry — Manufactured to Husqvarna's exact dimensional specifications, this idler pulley maintains the correct belt wrap angle and tension that the pump drive system depends on.
- Direct Drop-In Replacement — Mounts to the pump arm using the original hardware and attachment points, requiring no modification to the bracket or surrounding drive components.
- Broad Saw Compatibility — Fits the GX4200 floor saw as well as the SoffCut2500 and SoffCut5000 early entry saws, covering multiple machines within Husqvarna's concrete cutting lineup.
- Restored Drive System Performance — A worn or damaged idler pulley causes belt slip, uneven tension, and accelerated belt wear; replacing it restores consistent power transfer to the pump.
- Genuine Husqvarna OEM Quality — Sourced directly from Husqvarna's construction equipment parts catalog, this component meets the same standards as the original unit installed at the factory.
The pump arm idler pulley guides and maintains tension on the belt that drives the machine's pump system. By holding the belt at the correct tension and routing it along the proper path, the pulley ensures smooth, consistent power delivery to the pump. When the pulley wears, seizes, or becomes damaged, belt tension drops, leading to slippage, reduced pump output, and accelerated wear on surrounding drive components — making timely replacement essential to keeping the saw operating correctly.
Part Details
| Part Number | 505706901 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Pump Arm Idler Pulley |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Saw | GX4200 |
| Early Entry Saw | SoffCut2500 |
| Early Entry Saw | SoffCut5000 |
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.
