Fuel filler neck legit?

[DiyNutJob]

I just received a very reasonably priced china fuel filler neck for micra k12 from an ebay start up. The interior bits are not same as the original unit. So, can anyone tell me if this is OK for use? I think most of the sellers are selling this exact same thing.

On the original unit, the fill pipe has a small flap that opens to accept the petrol station nozzle. Then, the tank vent pipe vents separately from the fill pipe. On the new unit, both the fill pipe and vent pipe share the same space behind a face plate. The big hole on the face place takes the pump nozzle. The small upper holes enable venting. The vent pipe joins the fill pipe immediately behind the face plate. Is it a problem for the vent pipe not be given an outlet isolated from the fill pipe?

 

[Mottie]

Why not buy a proper one from a U.K. main dealer? Make sure you tell your insurance company about this non OE part.

 

[DiyNutJob]

Why not buy a proper one from a U.K. main dealer? Make sure you tell your insurance company about this non OE part.

They don't make this any more. Next, you will be saying: why not get a new car?

Even if it is available, it makes sense to you to buy a £300 part for a car the insurance will write off for £500? According to internet experts around here, pattern parts are fine for the insurance.

Anyway, I think the bits in the oem neck enables the auto shut off to work for the petrol station pump because the pressure built up in the fill pipe is not immediately vented as this unit does. I am guessing there is no rule that says the car must have this feature. This would explain why german made units appear similar to the chinese ones.