The R1 Concepts Geo-Carbon drilled-and-slotted rotor is specified for front-left or rear-left positions on 1973–1998 International/Navistar S1823 applications. The description identifies the part by its drilled and slotted face and Geo-Carbon designation. Use this rotor where the catalog lists the S1823 fitment for left-side positions; verify exact application and side before installation.
R1 73-98 International/Navistar S1823 Front Left/Rear Left Drill & Slot Geo-Carbon Rotor