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 deterioration. Their durability supports smooth trimmer operation, extending equipment 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 operation. Essential for Efficient Mowing: Address common trimmer issues such as overheating with our well-engineered bearing housings. These replacements help stabilize trimmer function, improving mowing efficiency and supporting consistent lawn maintenance. Color: Photo Color Material: Metal The actual product may have slight color variations, which do not affect functionality. Package Contents: 2 x Bearing Housing Only the items listed are included; other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.