I'm not sure this # means what you mean ... Did you check the same numbers on many TT and NA !?I just removed my TT fuel pump (2+2 euro spec) and the number is B78 .... I will remove tomorrow a NA pump I fitted in my tank by mistake and tell you the number I will discover ... To my mind, the fuel pump itself is the same between NA, TT and some others Nissan cars, only the mechanical assembly differs. I wouldn't understand why Nissan would do different product lines for the same pump finally as what is noticeable with Nissan is they use the same parts with different parts # for many cars(cost reduction). Only some real flow tests would allow to highlight a diff between NA and TT fuel pumps.
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