FUNCTION: 1 Pack 18000722 restricted dry joint gasket + 1 Pack 18000721 open dry joint gasket for dry joint manifolds HIGHLIGHT: The 4.3 dry joint exhaust manifold is made of high quality materials. Every part is leak tested and seals well under torque specifications. Increase generator power output and reduce noise and vibration. Fits your boat nicely and provides long-lasting service INTIMATE SERVICE:Make every gasket with heart and soul, strictly control every process. If there is any quality problem, please us in time, we will help you in time! With new 5.0 exhaust manifold gasket, you can be sure that your high performance exhaust gasket will do its job, whether you're down a school of bass, or enjoying a leisurely cruise Name:Restrictor Elbow Gasket Code:27-864850A02, 27-864850A1, Marine: 18-0722 18-0721 Fitment: Fits the Following for Mercury Marine Engines for V-6 & V-8 engines with dry joint exhaust manifold (2002 & newer) 4.3L, 5.0L, 5.7L, 6.2L utilizing the Dry Joint Manifold and Riser Dry joint gasket (Restricted) For: Standard cooling-full flow gasket Fits: V-6 & V-8 engines with dry joint exhaust manifold (most 2002 & newer) Fits: 4.3L, 5.0L, 5.7L, 6.2L utilizing the Dry Joint Manifold and Riser COMPATIBLE WITH: Dry joint fit for dry-joint manifolds 4.3 5.0 5.7 l v6 v8 4.3l 5.0l 5.7l 6.2l PART NUMBER: 18-0721 open dry joint gasket replaces for 27-864547a02, 27-864547a01; 18-0722 restricted dry joint gasket replaces for 27-864850a02, 27-864850a01 Colour:As Shown Material:Metal Package Contents: 2 x Gasekt Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.