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 designed to last, offering resistance to breakage and wear. Their durability supports smooth trimmer operation and helps extend equipment lifespan. 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 and efficiency during use. Simple Installation, Prolonged Performance: Installation is straightforward. The package includes necessary lubricants and safety gloves for convenient setup. Regular lubrication helps maintain 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 consistent lawn maintenance. Color: As shown in photo Material: Metal Note: The actual product may vary slightly in color due to lighting and screen settings, which does not affect functionality. Package Contents: 2 x Bearing Housing Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the actual item. Measurement may vary by +/- 1-3 cm.