I have an AEAD-200le withe an Onan b48m-ga018/4381a. I am having difficulty locating some parts for this spec motor. I am having trouble finding an air filter number, The number on the oem tank doesn't fit. as well as a air cleaner breather tube, i bought one for a b48m, but it is way too small. Any clues? Anyone have a website for parts? Thanks