Muffler, horizontal exhaust. Inlet 1-5/8″ I.D. outlet 1-5/8″ O.D. 17-1/2″ overall length. For 134 CID gas engines. Tractors: NAA, 501, 600, 601, 700, 701, 2000 (4 cyl, 1953-1964). For 172 CID gas engines. Tractors: 800, 900 (1955-1957).
Overall Length: 17-1/2″
Inlet ID: 1-5/8″
Inlet Length: 2-1/4″
Outlet OD: 1-5/8″
Outlet Length: 2-1/4″