YOU SAID:

I'm having a part at 6 o'clock

INTO JAPANESE

私は6時にパートを持っています

BACK INTO ENGLISH

I have a part at 6 o'clock

INTO JAPANESE

私は6時に部品を持っています

BACK INTO ENGLISH

I have parts at 6 o'clock

INTO JAPANESE

6時にパーツがあります

BACK INTO ENGLISH

There are parts at 6 o'clock

INTO JAPANESE

6時にパーツがあります

BACK INTO ENGLISH

There are parts at 6 o'clock