Each kit contains all the parts and gaskets necessary to restore your marine carburetor to like-new performance. Detailed instruction guide is also included through the rebuild process. Start the season with a quality Holley Renew Kit Marine repair kit.Specs. Compatibility – Holley for R3310 Carburetor – 23310 – 33310 – 43310 – 53310 – 68050880508 – 18331083310 – 18331183312 Includes gasket – Yes. Includes hardware –Yes. Detailed instructions are also included to guide you through the rebuilding process.