Fits CAT MANIFOLD 9S2356 9S-2356 for 951B, 3304One New Aftermarket Replacement Exhaust Manifold for Caterpillar (Cat) 951B Track Loader 3304 Engine This aftermarket exhaust manifold is a direct replacement for the Caterpillar (Cat) 3304 engine as fitted to the 951B track type crawler loader. The exhaust manifold collects spent combustion gases from the cylinder head ports and routes them out of the engine, making a proper seal and fit critical to engine performance and longevity. Replacing a