- Compatibility : Specifically designed for use with Husqvarna models 445, 450, 450E, 435, 435E, 440, and 440E, ensuring a perfect fit and performance. - Replacement Part Numbers : Replaces OEM parts numbers 573935702, 573 93 5701, and 504 57 1401. This compatibility guarantees a seamless transition when replacing older or worn components. - High-Quality Replacement : Manufactured using premium materials, these parts offer reliability and durability that surpass OEM standards. The meticulous quality control process ensures that you receive a product that lasts longer and performs better. - Practical Applications : Ideal for both professional landscapers and DIY enthusiasts, this product enhances the performance of your Husqvarna chainsaw, making it perfect for heavy-duty cutting tasks, routine home maintenance, or any landscaping project that requires precision and power. - Trusted Source : Many local shops trust these replacement parts, underscoring their quality and reliability. With superior programming and manufacturing practices, you can be confident in your purchase. Choose this high-quality replacement part for unmatched compatibility, performance, and durability in your Husqvarna chainsaw, ensuring you can tackle any cutting job with ease.