Please help me with this question. I have a 1990 LS400 and the MAF on the car is failing, the MAF code on my car is FUJI 22204-42011, and the number 4Y08-102 is engraved on one of its sides. The MAF that I am interested in purchasing bears the identical code FUJI 22204-42011, however, the engraved number is 1204-182. Please tell me if this number is relevant or if it is just a production number.
Thank you for your kind response.

second picture my LS400 1990 MAF

 

The white writing on the AFM is not relevant. The part number must be the same, which it is - 22204-42011

It is highly important to note that this is an Karman Vortex Air Flow Meter, not a Mass Air Flow sensor.

Make sure to never clean these with MAF cleaner, or you will destroy them. This design should not be serviced