S.57389 Elbow, Exhaust, 3136668R1 Fits LandiniOne New Aftermarket Replacement Exhaust Manifold Elbow for Landini and Case International Harvester Tractors This 4 bolt exhaust manifold elbow connects the exhaust manifold to the exhaust stack, channeling exhaust gases away from the engine on a wide range of Landini and Case International Harvester (Case IH) diesel tractors. Replacing a cracked or leaking exhaust elbow restores proper exhaust flow and protects the engine compartment from heat