Hi Gadge.
Yes, that's the problem with these imports. There is a lack of available support material for these mowers, let alone being able to find a part without having a part number.
It's been a hard slog to find an IPL for the engine on the mower I have here that's missing some parts but, using the part number of the air cleaner cover from a similar engine, at least I found these so anyone else looking for an IPL will have a chance of finding one that may match their engine. Some parts are available on a Spanish website, but the next best option is to find one that is being dismantled or thrown away. All this for a simple air box cover and and air filter. :-(