Muffler, vertical round body. Inlet is a 3 bolt mounting plate with a 2-58 inch ID, 7/16 inch bolt holes, 2-1/2 inch outlet OD, 20 inch overall length, 3-3/4 inch shell diameter, 18-1/4 inch shell length, 1 inch outlet length. Tractors: R (1949-54), 80 (1954-56), 820 (1956-58). Replaces AR327R.
