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, resisting breakage and wear. Their durability supports smooth trimmer operation, extending equipment lifespan and reducing the need for replacements. Perfect Compatibility: Specifically designed to fit Stihl FS38, FS40, FS45, and FS46 models, these bearing housings replace part number 4144 640 5900. Engineered for a precise fit, they ensure reliable performance and efficient operation. Simple Installation, Prolonged Performance: Installation is straightforward. Includes necessary lubricants and safety gloves for quick setup. Regular lubrication helps maintain stable, long-term trimmer performance. Essential for Efficient Mowing: Designed to address common trimmer issues such as overheating, these bearing housings stabilize operation, improve mowing efficiency, and support consistent lawn maintenance. Color: As shown in picture 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 Package includes only the items listed above; other accessories are not included. Note: Lighting and display differences may cause slight color variation. Measurement may vary by +/- 1-3 cm.