Description
Overview:
This Belt Pulley is a genuine Husqvarna component designed for Partner/Husqvarna cut-off saws, including the K650 Active III and 371K. Made from robust machined metal, it transfers engine power to the cutting system via the drive belt and keeps the belt running true for efficient, reliable performance. The pulley is engineered to handle demanding site conditions in construction and landscaping, helping prevent slippage and premature belt wear. As an OEM part (No. 506 34 78 01), it offers the correct geometry and fitment for consistent power transmission and long service life. It is an ideal replacement when the original pulley is worn, glazed, or damaged, restoring smooth operation and protecting other drive components.
Key Features:
- Genuine Husqvarna OE part for assured compatibility and reliability
- Precise fit and alignment for stable belt tracking and reduced wear
- Durable metal construction for long-lasting performance in harsh conditions
- Helps restore cutting power by minimising belt slip and vibration
- OEM groove profile for correct engagement with the drive belt
- Supports consistent performance in dust, debris, and high-load use
- Straightforward like-for-like replacement using standard workshop tools
- OEM reference: 506 34 78 01 for easy identification
Typical Applications:
Used on professional and DIY cut-off saws for construction, roadwork, rescue, and landscaping tasks. Ideal when servicing the drive system to maintain smooth power transmission, reduce belt heat and stretch, and protect bearings. Replace if the pulley shows scoring, chips, wobble, or if belts are slipping or wearing unevenly.
Also known as:
Drive pulley, belt wheel, drive wheel, V-belt pulley, belt drive pulley, sheave. These terms all describe the rotating component that supports and drives the belt between the engine and cutting assembly in the saw.
Fits Models:
371K, 375K, K650 Active, K650Active, K950, K950 Rescue
Alternate Part Numbers:
506347801
Product Specifications
| L&S Part No. | 506 34 78 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 506347801 |
| Unit of Sale | 1 |
| Applications | 371K, 375K, K650 Active, K650Active, K950, K950 Rescue |
| Machine Type | Disc Cutters |
| Fits Brands | Husqvarna |
| Fits Models | K950 | K950 Rescue | 371K | 375K |
