Tachometer Drive Gear Assembly Fits International 454 574 666 Tractors 178575H1 Case If your carburetor number is

If your carburetor number is not the number listed above

632" outside diameter

Engine SN 106510 and up with exhaust through the hood)

187"" oil ring

Tachometer Drive Gear Assembly Fits International 454 574 666 Tractors 178575H1 Case If your carburetor number isQuality Aftermarket Tachometer Drive Gear Assembly Fits International Harvester IH Farmall 340 diesel, 504 diesel; Following gas, LP: 454, 464, 544, 574, 666, 674, 686, 756, 766, 806, 826, 856, Hydro 70, Hydro 86, (460, 560, 606, 656, 660, gas, LP, diesel, (706 w C263, C291, D282) Tractors Specifications 1. 765" o a length 13 teeth. Fits the following International engines: C157 C175 C200 C221 C263 C291 C301 D166 D188 D236 D282 D301 Replacement