1078108 Manifold Exhaust Fits Caterpillar ModelsOne New Aftermarket Replacement Exhaust Manifold for Caterpillar (Cat) 3400 Series Engines and Track Type Tractors This aftermarket exhaust manifold replaces Caterpillar (Cat) OEM part number 1078108 (107 8108) and is designed for the 3408 family of V8 diesel engines, including variants used in large track type dozers and construction equipment. The exhaust manifold routes combustion gases from the cylinder head(s) to the turbocharger and exhaust