Pack of 2 for Enhanced Durability: Our dual pack bearing housing ensures you have a spare ready, crafted from robust metal for reduced wear and extended life. Compatible with Stihl trimmers, these parts help prevent frequent replacements, saving time and money. High-Quality Construction: Made from premium metal, these bearing housings are built to last, resisting breakage and wear. Their durability helps your trimmer operate smoothly, extending its lifespan and reducing the need for costly replacements. Perfect Compatibility: Designed to fit Stihl FS38, FS40, FS45, and FS46 models, these bearing housings replace part number 4144 640 5900. Engineered for a precise fit to ensure reliable performance during trimming tasks. Simple Installation, Prolonged Performance: Installation is easy. Includes lubricant and safety gloves for quick setup. Regular lubrication helps ensure stable and long-term trimmer operation. Essential for Efficient Mowing: Helps address common trimmer issues such as overheating. These replacement parts help stabilize trimmer performance, improving mowing efficiency and supporting a well-maintained lawn. Color: As shown in photo Material: Metal Package Contents: 2 x Bearing Housing Note: The actual product may vary slightly in color due to lighting and screen display differences. Measurement may vary by +/- 1-3 cm.