One New Aftermarket Replacement Muffler Fits Ford New Holland Tractor Models: 2000 (3 Cylinder), 2600, 3000 (1968 Up All with 3 or 4 Cylinder Gas or Diesel Engine), 3400, 3500, 3600, 4000 (3 Cylinder), 4400, 4500, 4600, 5000. The vertical round body diameter is 5-1/2 inches. Dimensions: Dimension A(1)A: Inlet port length is 4 1/2 inches. Dimension B(2)B: Inlet port inside diameter is 1 7/8 inches. Dimension C(3)C: Body length is 17 inches. Dimension D(4)D: Outlet port length is 7 1/2 inches. Dimension E(5)E: Outlet port outside diameter is 2 inches. Dimension F(6)F: Overall length is 29 inches. Replacement parts C7NN5230JM, C7NN5230AB, C7NN5230AC, C7NN5230Z, DHPN5230A