The light and effective Husqvarna 543XP is developed for tree care professionals and skilled land owners. The low weight and high chain speed leads to efficient limbing work. Their unique X-Torq engine technology provide more power where you need it, up to 20% less fuel consumption and up to 75% less exhaust emission. This unit allows you to control oil flow depending on application and weather conditions. Centrifugal air cleaning system removes larger dust and debris particles before reaching the air filter. This results in reduced air filter cleanings and improved engine life. Sturdily built crankcase withstands high rpms and tough professional use, ensuring a long service life. Only available for sale in the United States.