Thanks to spautoparts for this one so full credit goes to him
I've just done a wheel bearing replacement on my Maverick and the kit didn't come with a Hub Oil Seal
Without having to have to buy another wheel bearing kit I wanted to just find an oil seal on it's own, Nissan gave me the Genuine Part Number - 402320F000, they quoted me £17 which is practically the same price as a new bearing kit.
I tried
http://www.amayama.com/ and they can get me the part for £2.64
spautparts also said that he was quoted £300 for a new crank sensor by Nissan and Amayama managed to get him one for £70
I think this should be stickied