MerCruiser Gaskets

Barr MC47-27-41811 Mercruiser FWC Exhaust Riser Block Off Center Outlet Gasket. For Full Fresh Water Cooled Systems. Use when your exhaust manifold is part of the closed cooling fresh water system. Installer MUST use 2 of these gaskets with stainless steel bock off plate BARMC-20-87918.

Barr MC47-27-41813 Mercruiser RWC Exhaust Riser Restrictor Center Outlet Gasket. Use with standard raw water cooling when your thermostat housing has Tee with check-balls in thermostat housing hoses going to exhaust risers. Replaces Mercruiser 27-863724, Osco 8503-GR, Sierra 18-0897.

Barr MC47-27-48042 is equivalent to parts, 18-0885 Sierra Marine, 31480 GLM and 27-48042 Mercury Marine. Long riser gasket.

Barr MC47-27-48043 is and end plate gasket for Mercruiser log style manifolds

Barr MC47-27-52076 is a Mercruiser Riser Gasket for use on many Mercruiser exhaust manifolds. Direct replacement for Mercruiser 27-99777. Fits 76325, 12076, 76351 and 76771 risers.

Barr MC47-27-87105 is a replacement exhaust elbow gasket. (Replaces MerCruiser part # 27-87105.) Barr Marine Gasket-exhaust Elbow Mc47-27-87105 is equivalent to parts - 27863726 Mercury Marine, 9-61414 Mallory Marine