Description Oval muffler, aluminized. Inlet 1-3/4" I.D., outlet 1-3/4" O.D., overall length 29". For gas and diesel engines. Tractors: 2000, 3000 (bracket to foot platform 2" high). This item is a suitable alternative for the following: C5NN5230AH, A492355, FO-15, FO15