310079 Years:1958-64 Muffler, Horizontal Exhaust. Inlet 2 I.D. Outlet 1-7/8 O.D. 17-1/2 Overall Length. For 172 CID Gas Engines. Fits Tractors: 801, 901, 4000 (4 Cylinder). Vertical Exhaust For 144 CID Diesel Engines. Tractors: 501, 601, 701, 2000 (4 Cylinder)
