Leaf Blowers

Hi, new to this forum so I hope I am posting in the right place. I have a question about Husqvarna accessory parts. I just bought a flat nozzle for my 350BT leaf blower from Ebay. Husqvarna part number 521508101. It was advertised as "genuine oem" but the part looks cheaply made and has no embossed trade mark logos or part numbers. Does anyone no positively if this part has any markings or not. I don't believe the answer I got from the seller and if I am paying the same price my local dealer quoted I expect a factory part. The reason I bought from Ebay was my local dealer had to order it also and so I thought I would save the 20 mile drive and just have it shipped to my door. Thanks for any help.