This Cub Cadet Cub 3X Shear Pins Set is for three-stage snow blowers (OE# 738-06654, 738-05273, 714-04040). Shear pins are made to help protect a snow blower from damage if the impeller comes into contact with a solid object. In this snow blower shear pins set, there are four auger shear pins, four auger bow-tie cotter pins, two accelerator shear pins, and two accelerator bow-tie cotter pins.