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 both 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 new purchases. 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 and efficient trimming operation. Simple Installation, Prolonged Performance: Installation is straightforward. Includes necessary lubricants and safety gloves for quick setup. Regular use of lubricant helps ensure stable, long-term trimmer operation. Essential for Efficient Mowing: Help resolve 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 Material: Metal Package Contents: 2 x Bearing Housing Note: The actual product may vary slightly in color due to lighting and screen display differences, which does not affect functionality. Measurement may vary by +/- 1-3 cm.