Boeing 767

Can somebody tell me the difference between the two aircraft .
H/B763/W H/B763/L
What do the last letter stand for.

Thanks,nebojsa

It is an equipment suffix and it denotes the navigational capability.
The /L has GNSS, the /W does not.
There is a list here:

Also :

Thank you both.

nebojsa

Is there a way that the last letter can be seen when tracking a aircraft.

Thanks,nebojsa