UT3871 PTO Idler Gear----Replaces 381509R1

Replaces number 381509R1

Fits: 1066 SN <18508, 1086, 1466 SN <12776, 1468 SN <7649, 1486, 2756, 2856, 3088
3288, 3388, 3688, 6388, 756, 766 SN <7661, 786, 856, 966 SN <14863, 986