Oval aluminized vertical muffler for Ford tractor models: 2000, 3000, 4000, (1965 & up); 5000 (1966 & up); 4100, 4600, 6600, (1975 & up). Must use inlet adapter pipe D0NN5B255C or D0NN5B255D. Fits gas or diesel engine. 1-7/8 inch I.D., 2 inch O.D. outlet, 39 inches long

Round aluminized vertical muffler for Ford tractor models: 2000, 3000, 4000, 5000 (1965 & up); Must use inlet adapter pipe D0NN5B255C or D0NN5B255D. Fits gas or diesel engine. 1-7/8 inch I.D., 2 inch O.D. outlet, 29 inches long. Can replace oval mufflers C4NN5230AR, C7NN5230E, C7NN5230AS, C7NN5230AC

Oval aluminized vertical muffler for Ford tractor models: 2000, 3000, (1965 to 1975); 2600, 3600, 231, 335, 420, (1975 to 1981); 2610, 3610, (1981 to 1982); 2810, 2910, 3910, (10/1985 to 2/1990). 1-7/8 inch I.D. inlet, 2 inch O.D. outlet, 49 inches long