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 decay. Their durability supports smooth trimmer operation, extending its lifespan and reducing the need for costly replacements. 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, 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 quick setup. Regular lubrication helps maintain stable, long-term trimmer performance. Essential for Efficient Mowing: Helps address common trimmer issues such as overheating. These replacements 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 differences, which does not affect functionality. Package Contents: 2 x Bearing Housing (Only the above items included; other accessories not included) Note: Lighting and display settings may cause slight color variation. Measurement may vary by +/- 1-3 cm.