Usage Tips: FUNCTION: 1 Pack 18000722 restricted dry joint gasket + 1 Pack 18000721 open dry joint gasket for dry joint manifoldsHIGHLIGHT: 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 serviceINTIMATE 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 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 cruiseName:Restrictor Elbow GasketCode:27-864850A02, 27-864850A1, Marine: 18-0722 18-0721Fitment:Fits the Following for Mercury Marine Enginesfor V-6 & V-8 engines with dry joint exhaust manifold (2002 & er)4.3L, 5.0L, 5.7L, 6.2L utilizing the Dry Joint Manifold and RiserDescription: Dry joint gasket (Restricted)For: Standard cooling-full flow gasketFits: V-6 & V-8 engines with dry joint exhaust manifold (most 2002 & er)Fits: 4.3L, 5.0L, 5.7L, 6.2L utilizing the Dry Joint Manifold and RiserCOMPATIBLE WITH: Dry joint fit for dry-joint manifolds 4.3 5.0 5.7 l v6 v8 4.3l 5.0l 5.7l 6.2lPART NUMBER: 18-0721 open dry joint gasket replaces for 27-864547a02, 27-864547a01; 18-0722 restricted dry joint gasket replaces for 27-864850a02, 27-864850a01Colour:As ShownMaterial:MetalPackage Contents:2 x GasektOnly 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. A-B