OEM Factory MerCruiser Exhaust Riser Gasket

This gasket is used between the riser and the manifold
MerCruiser engines 4.3 5.0 5.7 and 6.2 , 454 , 502
Used on MerCruiser engines with center riser manifolds with 3 or 4 inch riser from the early 80s to 2002

NOT used for dry joint exhaust

Part Number: 27-863726