Mercruiser 4 in. Exhaust Riser | Barr Marine MC-20-44354Mercruiser 4 in. Exhaust Riser Barr Marine MC 20 44354 Direct replacement exhaust elbow fits many Mercruiser engines with center rise exhaust manifolds. Barr Mercruiser center rise exhaust elbow Fits Mercruiser 229, 262, 898R, 228R, 260R, 330, 340, and 454 marine engines with center rise manifolds For use with 4 in. ID marine exhaust hose 8 degree down angle Includes plugs, gaskets, and mounting hardware Heavy duty cast iron Painted black Replaces