O2 sensors

[Peter Gargano]

Whit Hickman wrote:
> 
> Can anyone tell me what the numbers on by O2 sensors mean and does
> it matter that they are not the same?

The unique stamp is most probably a date stamp - The "correct" sensor has ..

   L1H1 NTK JAPAN

... on the sensor's stainless steel ferrule, just under the coloured wires.
Note that it may also come in a Bosch (from The Parts Bin) or Echlin box (NAPA).

Peter.

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