Hi Mark: The parts books show the tach cable SHAFT, PN 2096 976 to be the same for the 300F,G, and H. The CABLE, which I assume is the assembly, has a new part number, 2426 286, for the 300H. I don't know what the difference is, but the inside part that you need should be the same. Hope this helps. 300ly, Gil [Non-text portions of this message have been removed]