A-37781051-AI Exhaust ManifoldOne New Aftermarket Replacement Vertical Exhaust Manifold Fits Massey Ferguson Tractors This aftermarket replacement vertical exhaust manifold Fits Massey Ferguson 4 cylinder diesel tractors and industrial construction equipment equipped with the Perkins A4 236 or A4 248 diesel engine using a vertical exhaust configuration. The manifold channels combustion exhaust gases away from the engine cylinder head and out through the vertical stack, maintaining