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 ensure smooth trimmer operation, extending its lifespan and reducing the need for replacements. Perfect Compatibility: Specifically designed to fit Stihl FS38, FS40, FS45, and FS46 models, our bearing housings replace part number 4144 640 5900. They are engineered for a precise fit, ensuring reliable performance during use. Simple Installation, Prolonged Performance: Installation is straightforward. The package includes necessary lubricants and safety gloves for easy setup. Regular lubrication helps maintain consistent, long-term trimmer operation. Essential for Efficient Mowing: Help address common trimmer issues such as overheating with our engineered bearing housings. These replacements help stabilize trimmer performance, improving mowing efficiency and supporting a well-maintained lawn. Color: As shown in picture Material: Metal The actual product may have slight color variations due to lighting and screen differences, which do not affect functionality. Package Contents: 2 x Bearing Housing Only the items listed are included; other accessories are not part of the package. Note: Lighting and display settings may cause minor color differences between the image and the physical item. Measurement may vary by up to +/- 1-3 cm.