Husqvarna OEM Air Filter 577851501 Description: Husqvarna Genuine Parts is a guarantee for high quality, endurance and safety. They are developed, tested and adapted to fit our products perfectly and will give your product uptime and performance. They ensure that our Husqvarna products can continue to run in though environments under tough conditions, performing at their best year after year. Brand: Husqvarna Details: This is an O.E.M. authorized part Fits various Husqvarna models