Quicksilver 27-864850A02 Metal Elbow Gasket for Dry Joint System, Mercury - Mercruiser Quicksilver 864850A02 Restrictor style exhaust elbow gasket for GM based MerCruiser V6 and V8 sterndrive and inboard engines from 2002 and newer with dry joint exhaust manifolds. Designed to control cooling flow while maintaining proper exhaust sealing. Refer to your service manual for fitment and installation details.Features Fits 2002 & newer GM V6 and V8 MerCruiser sterndrive and inboard engines; Compatible with dry joint exhaust manifold systems; Restrictor-style gasket for regulated cooling flow; Built to Mercury Marine OEM specifications for durability and performance; Replaces Pro Marine 64850; Mallory 9-61429; Installation Video