4 rail type
Ultra thin sleeve slides over damaged crank
Interchange 2301287-495
4000 (1953 to 1964)
MUFFLER 448-AR250BPCC 4 rail typeHorizontal muffler, Round body. Inlet 2 3 8" I. D., Outlet 2 1 2" O. D., 21" overall length. Tractors: Massey Harris (1942 1957) (Gas & Diesel), 20, 20K, 22, 22K (Except 1948), 30, 30K, 33, 333, 44, 44SPL, 44D, 44K, 44 6, 444, 81, 82, 101JR, 101SR, 102SR. Specifications Length 21" Inlet Length 2" Outlet Length 5" Outlet O. D. 2 1 2" Body Diameter 4 1 4" Muffler Body Style Round Overall Length 21" Muffler Orientation Horizontal For Make Massey Harris