Description Manifold. Improved (w/gaskets). Has larger throat (1-15/16" inlet I.D.). Tractors: WC, WD. Also fits WD45, D17, 170. Use with muffler 70234494 This item is a suitable alternative for the following: 70229416AF, 229416, 706450, 224786, A533208, A-70229416, A70229416