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 degradation. Their durability supports smooth trimmer operation, extending equipment lifespan and reducing the need for replacements. Perfect Compatibility: Specifically engineered to fit Stihl FS38, FS40, FS45, and FS46 models, these bearing housings replace part number 4144 640 5900. Designed for precise fitment, they ensure reliable performance and efficient trimming operation. Simple Installation, Prolonged Performance: Installation is easy with these bearing housings. Includes lubricants and safety gloves for convenient setup. Regular lubrication helps maintain stable and long-term trimmer performance. Essential for Efficient Mowing: Address common trimmer issues such as overheating with our precision-engineered bearing housings. These replacement parts help stabilize trimmer function, improving mowing efficiency and supporting 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 (Only the above items included; other accessories not included) Note: Lighting and display differences may cause slight variations in color. Measurement tolerance: +/- 1-3 cm.