Sierra 18-8554 Exhaust Elbow Mounting Kit

For: Mercruiser 229 and 262 ci V6; 305 and 350 SB V8; 454 Big Block V8. Used with: Riser Kit: 18-1908K and 18-1908 Spacer Riser: 18-1970-1; 18-1971; 18-1978 Manifold: 18-1952-1 Manifold Spacer: 18-1906 Use 18-8554 Mounting Kit when 18-1908 Spacer; 18-1970-1 Elbow and 18-1974 Elbow are used together Included in 18-1908K Includes (1) 18-2849 & 18-0897 elbow gaskets