Exhaust Manifold Fit for Cummins N855 NT855 NTA855 Engine 3008590 3063487 09526578Part Number 3008590 3063487 Fitment Fit for Cummins Engine N855 NT855 NTA855 Features Ideal Replacement The exhaust manifold exhausts the gases produced when the boat is running into the atmosphere while reducing noise. Timely inspection and replacement of a new manifold can greatly improve your driving comfort. This is a perfect replacement that has the same quality as the original unit. High Quality Built to strict OEM quality standards, the exhaust