I want to know what is the year model for a CAT grader

HI ALL ,
I need some help to find the year of model for a CAT grader 120 H..Please help

serial # 4TF21156
Mode number 3116
Product Identification CAT0120H4MK013152
Arrangement Number -1338829

Thanks,
Bhavani

I want to know what is the year model for a CAT grader