676833R1 International 500C 500E steel steering clutch disc. These aftermarket steel steering clutch discs for the IH 500 C & E series tractors are of the highest quality on the market today. The IH 500C & E series tractors require 6 of these steel discs per side. The 676833R1 steel steering clutch disc measures 10″ in diameter. These discs are for the “C” & “E” series only and will NOT fit the IH 500, 500G or 500D tractors. The earlier International 500, 500G and 500D tractors use the 9″ discs, part #635384R2.