Mercruiser GM V6 Exhaust Manifold | Barr Marine MC-1-99746Mercruiser GM V6 Exhaust Manifold Barr Marine MC 1 99746 Cast iron center rise exhaust manifold fits Mercruiser 185R, 185MR, 205R, & 205MR marine engines. Barr Mercruiser exhaust manifold Direct replacement for Mercruiser center rise V6 229 and 262 cu. in. 175, 185, 205, 262 4. 3L, 4. 3LX Interchangable between port and starboard side Includes gaskets and mounting hardware Heavy duty cast iron Painted black Replaces Barr MC1 99746 Replaces Mercruiser