Feature:1. Fitment: Air filter fuel filter kit is suitable for Husqvarna 51 55 Chainsaw, these are perfect accessories for garden tools, excellent replacement.2. Part Number: OEM number of air filter is 503 89 8101, and the OEM number for fuel filter is 503443201. Please check your OEM before ordering.3. Advantage: Exquisite craftsmanship, this kit helps to provide the best performance, which can effectively extend the life of the machine with stable performance.4. Quality Material: Air fuel filter kit is made of premium plastic and aluminium material, anti rust, wearproof, high temperature resistant, sturdy and durable.5. Package Included: The package includes 1pc air filter, 2pcs fuel filters, 1pc spark plug and1pc fuel line, professional manufacturing, strong reliability,Specification:Item Type: Air Fuel Filter KitMaterial: Plastic, AluminumWeight: Approx. 140g/4.9ozOEM: Air Filter 503 89 81-01, Fuel Filter 503-443201Fitment: Suitable for Husqvarna 51 55 Chainsaw.Package List:1 x Air Filter2 x Fuel Filter1 xSpark Plug1 x Fuel LineNote:1. Please double check the part number of your item, matching information is for reference only.2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!