My car is a 2000 Chrysler Neon with automatic transmission. I am in the process of refreshing the engine and while the engine is out I clean and paint the transmission and found these numbers stamped,

PK4800309AB 2210 3472

I want to know if this is the original transmission of the car and since there is no vin on the transmission and the sticker on the bell housing was all white. Can anyone tell me the meaning of these numbers? and If this is the original transmission of the car?